/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 00:05:25,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 00:05:25,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 00:05:25,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-12 00:05:25,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-12 00:05:25,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-12 00:05:25,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-12 00:05:25,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-12 00:05:25,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-12 00:05:25,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-12 00:05:25,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-12 00:05:25,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-12 00:05:25,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 00:05:25,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 00:05:25,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 00:05:25,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 00:05:25,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 00:05:25,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 00:05:25,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 00:05:25,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 00:05:25,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 00:05:25,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 00:05:25,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 00:05:25,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 00:05:25,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-12 00:05:25,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-12 00:05:25,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-12 00:05:25,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-12 00:05:25,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-12 00:05:25,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-12 00:05:25,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-12 00:05:25,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-12 00:05:25,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-12 00:05:25,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-12 00:05:25,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-12 00:05:25,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-12 00:05:25,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-12 00:05:25,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-12 00:05:25,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 00:05:25,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 00:05:25,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 00:05:25,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-12 00:05:25,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 00:05:25,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 00:05:25,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 00:05:25,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 00:05:25,898 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 00:05:25,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 00:05:25,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 00:05:25,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 00:05:25,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 00:05:25,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 00:05:25,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 00:05:25,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 00:05:25,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 00:05:25,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 00:05:25,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 00:05:25,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 00:05:25,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 00:05:25,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 00:05:25,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 00:05:25,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 00:05:25,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 00:05:25,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 00:05:25,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-12 00:05:25,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 00:05:26,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 00:05:26,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 00:05:26,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 00:05:26,225 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 00:05:26,225 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 00:05:26,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl [2021-03-12 00:05:26,226 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl' [2021-03-12 00:05:26,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 00:05:26,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 00:05:26,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 00:05:26,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 00:05:26,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 00:05:26,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 00:05:26,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 00:05:26,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 00:05:26,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 00:05:26,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... [2021-03-12 00:05:26,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 00:05:26,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 00:05:26,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 00:05:26,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 00:05:26,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 00:05:26,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 00:05:26,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 00:05:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 00:05:26,478 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 00:05:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 00:05:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 00:05:26,478 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 00:05:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 00:05:26,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 00:05:26,478 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-12 00:05:26,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-12 00:05:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-12 00:05:26,479 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 00:05:26,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 00:05:26,904 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-03-12 00:05:26,906 INFO L202 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 12:05:26 BoogieIcfgContainer [2021-03-12 00:05:26,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 00:05:26,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 00:05:26,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 00:05:26,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 00:05:26,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 12:05:26" (1/2) ... [2021-03-12 00:05:26,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71119c53 and model type word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 12:05:26, skipping insertion in model container [2021-03-12 00:05:26,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 12:05:26" (2/2) ... [2021-03-12 00:05:26,912 INFO L111 eAbstractionObserver]: Analyzing ICFG word-subst.wvr.bpl [2021-03-12 00:05:26,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 00:05:26,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 00:05:26,926 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 00:05:26,990 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-12 00:05:27,006 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-12 00:05:27,038 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 00:05:27,038 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-12 00:05:27,039 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 00:05:27,039 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 00:05:27,039 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 00:05:27,039 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 00:05:27,039 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 00:05:27,039 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 00:05:27,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 80 flow [2021-03-12 00:05:27,076 INFO L129 PetriNetUnfolder]: 6/25 cut-off events. [2021-03-12 00:05:27,076 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-12 00:05:27,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-03-12 00:05:27,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 28 transitions, 80 flow [2021-03-12 00:05:27,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 23 transitions, 64 flow [2021-03-12 00:05:27,086 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-12 00:05:27,095 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 23 transitions, 64 flow [2021-03-12 00:05:27,098 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 23 transitions, 64 flow [2021-03-12 00:05:27,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 64 flow [2021-03-12 00:05:27,108 INFO L129 PetriNetUnfolder]: 6/23 cut-off events. [2021-03-12 00:05:27,109 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-12 00:05:27,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 23 events. 6/23 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2021-03-12 00:05:27,110 INFO L116 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-12 00:05:27,415 INFO L131 LiptonReduction]: Checked pairs total: 72 [2021-03-12 00:05:27,415 INFO L133 LiptonReduction]: Total number of compositions: 7 [2021-03-12 00:05:27,416 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 333 [2021-03-12 00:05:27,432 INFO L129 PetriNetUnfolder]: 6/18 cut-off events. [2021-03-12 00:05:27,432 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-12 00:05:27,432 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:27,433 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:27,433 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:27,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash 2102661896, now seen corresponding path program 1 times [2021-03-12 00:05:27,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:27,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20143811] [2021-03-12 00:05:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:27,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:27,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:27,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20143811] [2021-03-12 00:05:27,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:27,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 00:05:27,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224896116] [2021-03-12 00:05:27,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 00:05:27,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:27,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 00:05:27,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 00:05:27,593 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 35 [2021-03-12 00:05:27,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:27,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 35 [2021-03-12 00:05:27,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:27,610 INFO L129 PetriNetUnfolder]: 5/22 cut-off events. [2021-03-12 00:05:27,610 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-12 00:05:27,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 22 events. 5/22 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 38 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 23. Up to 4 conditions per place. [2021-03-12 00:05:27,612 INFO L132 encePairwiseOnDemand]: 33/35 looper letters, 3 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2021-03-12 00:05:27,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 64 flow [2021-03-12 00:05:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 00:05:27,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-12 00:05:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2021-03-12 00:05:27,621 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.819047619047619 [2021-03-12 00:05:27,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 86 transitions. [2021-03-12 00:05:27,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 86 transitions. [2021-03-12 00:05:27,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:27,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 86 transitions. [2021-03-12 00:05:27,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,631 INFO L185 Difference]: Start difference. First operand has 23 places, 19 transitions, 56 flow. Second operand 3 states and 86 transitions. [2021-03-12 00:05:27,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 64 flow [2021-03-12 00:05:27,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 52 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:27,635 INFO L241 Difference]: Finished difference. Result has 20 places, 19 transitions, 49 flow [2021-03-12 00:05:27,636 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=20, PETRI_TRANSITIONS=19} [2021-03-12 00:05:27,637 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places. [2021-03-12 00:05:27,637 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 19 transitions, 49 flow [2021-03-12 00:05:27,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,637 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:27,637 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:27,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 00:05:27,638 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:27,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:27,638 INFO L82 PathProgramCache]: Analyzing trace with hash 391213584, now seen corresponding path program 1 times [2021-03-12 00:05:27,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:27,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739680431] [2021-03-12 00:05:27,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:27,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:27,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:27,735 INFO L142 QuantifierPusher]: treesize reduction 11, result has 67.6 percent of original size [2021-03-12 00:05:27,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:05:27,752 INFO L142 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size [2021-03-12 00:05:27,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:05:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:27,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739680431] [2021-03-12 00:05:27,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:27,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:27,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901641142] [2021-03-12 00:05:27,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:27,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:27,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:27,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:27,770 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:27,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 19 transitions, 49 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:27,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:27,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:27,907 INFO L129 PetriNetUnfolder]: 73/144 cut-off events. [2021-03-12 00:05:27,908 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-12 00:05:27,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 144 events. 73/144 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 580 event pairs, 16 based on Foata normal form. 1/96 useless extension candidates. Maximal degree in co-relation 215. Up to 58 conditions per place. [2021-03-12 00:05:27,910 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 20 selfloop transitions, 3 changer transitions 1/32 dead transitions. [2021-03-12 00:05:27,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 32 transitions, 125 flow [2021-03-12 00:05:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-12 00:05:27,912 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-12 00:05:27,912 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-12 00:05:27,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-12 00:05:27,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:27,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-12 00:05:27,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,914 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,914 INFO L185 Difference]: Start difference. First operand has 20 places, 19 transitions, 49 flow. Second operand 5 states and 110 transitions. [2021-03-12 00:05:27,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 32 transitions, 125 flow [2021-03-12 00:05:27,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 32 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:27,916 INFO L241 Difference]: Finished difference. Result has 26 places, 20 transitions, 65 flow [2021-03-12 00:05:27,916 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2021-03-12 00:05:27,917 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 3 predicate places. [2021-03-12 00:05:27,917 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 65 flow [2021-03-12 00:05:27,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,917 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:27,917 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:27,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 00:05:27,918 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:27,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1821545950, now seen corresponding path program 2 times [2021-03-12 00:05:27,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:27,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691285486] [2021-03-12 00:05:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:27,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:27,948 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-12 00:05:27,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:27,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:05:27,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:27,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:27,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691285486] [2021-03-12 00:05:27,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:27,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:27,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965232025] [2021-03-12 00:05:27,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:27,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:27,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:27,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:27,997 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:27,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:27,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:27,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:27,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,078 INFO L129 PetriNetUnfolder]: 49/110 cut-off events. [2021-03-12 00:05:28,078 INFO L130 PetriNetUnfolder]: For 67/69 co-relation queries the response was YES. [2021-03-12 00:05:28,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 110 events. 49/110 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 398 event pairs, 15 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 215. Up to 57 conditions per place. [2021-03-12 00:05:28,080 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 16 selfloop transitions, 3 changer transitions 2/29 dead transitions. [2021-03-12 00:05:28,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 145 flow [2021-03-12 00:05:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-12 00:05:28,081 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5942857142857143 [2021-03-12 00:05:28,082 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-12 00:05:28,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-12 00:05:28,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-12 00:05:28,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,084 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,084 INFO L185 Difference]: Start difference. First operand has 26 places, 20 transitions, 65 flow. Second operand 5 states and 104 transitions. [2021-03-12 00:05:28,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 145 flow [2021-03-12 00:05:28,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 136 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:28,086 INFO L241 Difference]: Finished difference. Result has 30 places, 21 transitions, 86 flow [2021-03-12 00:05:28,086 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2021-03-12 00:05:28,086 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 7 predicate places. [2021-03-12 00:05:28,086 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 86 flow [2021-03-12 00:05:28,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,086 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,087 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-12 00:05:28,087 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1847115728, now seen corresponding path program 3 times [2021-03-12 00:05:28,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6028604] [2021-03-12 00:05:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,164 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-12 00:05:28,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:28,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6028604] [2021-03-12 00:05:28,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404527475] [2021-03-12 00:05:28,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:28,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:28,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:28,217 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:28,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:28,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,328 INFO L129 PetriNetUnfolder]: 54/135 cut-off events. [2021-03-12 00:05:28,328 INFO L130 PetriNetUnfolder]: For 138/140 co-relation queries the response was YES. [2021-03-12 00:05:28,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 135 events. 54/135 cut-off events. For 138/140 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 577 event pairs, 23 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 285. Up to 63 conditions per place. [2021-03-12 00:05:28,330 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 19 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2021-03-12 00:05:28,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 178 flow [2021-03-12 00:05:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2021-03-12 00:05:28,331 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2021-03-12 00:05:28,331 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,333 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,333 INFO L185 Difference]: Start difference. First operand has 30 places, 21 transitions, 86 flow. Second operand 5 states and 107 transitions. [2021-03-12 00:05:28,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 178 flow [2021-03-12 00:05:28,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 163 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:28,336 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 112 flow [2021-03-12 00:05:28,336 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2021-03-12 00:05:28,336 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2021-03-12 00:05:28,336 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 112 flow [2021-03-12 00:05:28,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,336 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,336 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-12 00:05:28,337 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,337 INFO L82 PathProgramCache]: Analyzing trace with hash -752699056, now seen corresponding path program 4 times [2021-03-12 00:05:28,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871830489] [2021-03-12 00:05:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,361 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-12 00:05:28,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:28,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871830489] [2021-03-12 00:05:28,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720020806] [2021-03-12 00:05:28,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:28,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:28,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:28,405 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:28,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:28,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,503 INFO L129 PetriNetUnfolder]: 55/144 cut-off events. [2021-03-12 00:05:28,503 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2021-03-12 00:05:28,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 144 events. 55/144 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 631 event pairs, 22 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 316. Up to 67 conditions per place. [2021-03-12 00:05:28,505 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 20 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2021-03-12 00:05:28,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 214 flow [2021-03-12 00:05:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2021-03-12 00:05:28,506 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6114285714285714 [2021-03-12 00:05:28,506 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 107 transitions. [2021-03-12 00:05:28,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,508 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,508 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 112 flow. Second operand 5 states and 107 transitions. [2021-03-12 00:05:28,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 214 flow [2021-03-12 00:05:28,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 208 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:28,511 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 161 flow [2021-03-12 00:05:28,511 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-03-12 00:05:28,511 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 16 predicate places. [2021-03-12 00:05:28,511 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 161 flow [2021-03-12 00:05:28,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,512 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,512 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-12 00:05:28,512 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1627540966, now seen corresponding path program 5 times [2021-03-12 00:05:28,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396657846] [2021-03-12 00:05:28,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:28,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,582 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:05:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396657846] [2021-03-12 00:05:28,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982734624] [2021-03-12 00:05:28,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:28,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:28,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:28,598 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:28,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:28,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,690 INFO L129 PetriNetUnfolder]: 62/167 cut-off events. [2021-03-12 00:05:28,691 INFO L130 PetriNetUnfolder]: For 294/302 co-relation queries the response was YES. [2021-03-12 00:05:28,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 167 events. 62/167 cut-off events. For 294/302 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 795 event pairs, 8 based on Foata normal form. 3/136 useless extension candidates. Maximal degree in co-relation 370. Up to 52 conditions per place. [2021-03-12 00:05:28,692 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 21 selfloop transitions, 8 changer transitions 0/37 dead transitions. [2021-03-12 00:05:28,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 256 flow [2021-03-12 00:05:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2021-03-12 00:05:28,693 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6228571428571429 [2021-03-12 00:05:28,694 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 109 transitions. [2021-03-12 00:05:28,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 109 transitions. [2021-03-12 00:05:28,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 109 transitions. [2021-03-12 00:05:28,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,695 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,695 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 161 flow. Second operand 5 states and 109 transitions. [2021-03-12 00:05:28,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 256 flow [2021-03-12 00:05:28,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:28,700 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 196 flow [2021-03-12 00:05:28,700 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-12 00:05:28,701 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 21 predicate places. [2021-03-12 00:05:28,701 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 196 flow [2021-03-12 00:05:28,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,701 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,701 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-12 00:05:28,701 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,702 INFO L82 PathProgramCache]: Analyzing trace with hash -331483982, now seen corresponding path program 6 times [2021-03-12 00:05:28,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136723712] [2021-03-12 00:05:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,726 INFO L142 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-03-12 00:05:28,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:28,743 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:05:28,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:05:28,756 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:05:28,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:05:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136723712] [2021-03-12 00:05:28,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828030306] [2021-03-12 00:05:28,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 00:05:28,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 00:05:28,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-12 00:05:28,771 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2021-03-12 00:05:28,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2021-03-12 00:05:28,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,860 INFO L129 PetriNetUnfolder]: 56/148 cut-off events. [2021-03-12 00:05:28,861 INFO L130 PetriNetUnfolder]: For 440/445 co-relation queries the response was YES. [2021-03-12 00:05:28,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 148 events. 56/148 cut-off events. For 440/445 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 671 event pairs, 22 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 381. Up to 67 conditions per place. [2021-03-12 00:05:28,862 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 16 selfloop transitions, 6 changer transitions 2/32 dead transitions. [2021-03-12 00:05:28,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 32 transitions, 272 flow [2021-03-12 00:05:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2021-03-12 00:05:28,864 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5885714285714285 [2021-03-12 00:05:28,864 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 103 transitions. [2021-03-12 00:05:28,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 103 transitions. [2021-03-12 00:05:28,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 103 transitions. [2021-03-12 00:05:28,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,865 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,865 INFO L185 Difference]: Start difference. First operand has 44 places, 27 transitions, 196 flow. Second operand 5 states and 103 transitions. [2021-03-12 00:05:28,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 32 transitions, 272 flow [2021-03-12 00:05:28,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 32 transitions, 252 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:28,869 INFO L241 Difference]: Finished difference. Result has 47 places, 26 transitions, 188 flow [2021-03-12 00:05:28,869 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2021-03-12 00:05:28,869 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 24 predicate places. [2021-03-12 00:05:28,869 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 188 flow [2021-03-12 00:05:28,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,869 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,870 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-12 00:05:28,870 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1749241442, now seen corresponding path program 1 times [2021-03-12 00:05:28,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499970597] [2021-03-12 00:05:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:28,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:28,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499970597] [2021-03-12 00:05:28,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768377477] [2021-03-12 00:05:28,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:28,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:28,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:28,887 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:28,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:28,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,927 INFO L129 PetriNetUnfolder]: 28/112 cut-off events. [2021-03-12 00:05:28,928 INFO L130 PetriNetUnfolder]: For 334/345 co-relation queries the response was YES. [2021-03-12 00:05:28,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 112 events. 28/112 cut-off events. For 334/345 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 552 event pairs, 0 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 244. Up to 15 conditions per place. [2021-03-12 00:05:28,929 INFO L132 encePairwiseOnDemand]: 30/35 looper letters, 18 selfloop transitions, 8 changer transitions 0/39 dead transitions. [2021-03-12 00:05:28,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 348 flow [2021-03-12 00:05:28,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2021-03-12 00:05:28,931 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8057142857142857 [2021-03-12 00:05:28,931 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 141 transitions. [2021-03-12 00:05:28,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 141 transitions. [2021-03-12 00:05:28,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 141 transitions. [2021-03-12 00:05:28,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,933 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,933 INFO L185 Difference]: Start difference. First operand has 47 places, 26 transitions, 188 flow. Second operand 5 states and 141 transitions. [2021-03-12 00:05:28,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 348 flow [2021-03-12 00:05:28,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 332 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:28,936 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 273 flow [2021-03-12 00:05:28,936 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-03-12 00:05:28,936 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 27 predicate places. [2021-03-12 00:05:28,936 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 273 flow [2021-03-12 00:05:28,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,936 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:28,937 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:28,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-12 00:05:28,937 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:28,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:28,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1628746119, now seen corresponding path program 1 times [2021-03-12 00:05:28,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:28,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761531994] [2021-03-12 00:05:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:28,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:28,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:28,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761531994] [2021-03-12 00:05:28,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:28,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:28,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385769185] [2021-03-12 00:05:28,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:28,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:28,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:28,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:28,955 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:28,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:28,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:28,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:28,992 INFO L129 PetriNetUnfolder]: 21/96 cut-off events. [2021-03-12 00:05:28,992 INFO L130 PetriNetUnfolder]: For 343/364 co-relation queries the response was YES. [2021-03-12 00:05:28,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 96 events. 21/96 cut-off events. For 343/364 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 453 event pairs, 1 based on Foata normal form. 7/85 useless extension candidates. Maximal degree in co-relation 245. Up to 15 conditions per place. [2021-03-12 00:05:28,993 INFO L132 encePairwiseOnDemand]: 30/35 looper letters, 14 selfloop transitions, 10 changer transitions 2/39 dead transitions. [2021-03-12 00:05:28,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 352 flow [2021-03-12 00:05:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2021-03-12 00:05:28,995 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:05:28,995 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 140 transitions. [2021-03-12 00:05:28,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 140 transitions. [2021-03-12 00:05:28,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:28,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 140 transitions. [2021-03-12 00:05:28,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,996 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:28,996 INFO L185 Difference]: Start difference. First operand has 50 places, 34 transitions, 273 flow. Second operand 5 states and 140 transitions. [2021-03-12 00:05:28,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 39 transitions, 352 flow [2021-03-12 00:05:28,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 39 transitions, 344 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-03-12 00:05:28,999 INFO L241 Difference]: Finished difference. Result has 55 places, 32 transitions, 266 flow [2021-03-12 00:05:29,000 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2021-03-12 00:05:29,000 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 32 predicate places. [2021-03-12 00:05:29,000 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 32 transitions, 266 flow [2021-03-12 00:05:29,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,000 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,000 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-12 00:05:29,001 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash -51115679, now seen corresponding path program 2 times [2021-03-12 00:05:29,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443271813] [2021-03-12 00:05:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:29,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:29,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443271813] [2021-03-12 00:05:29,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066303443] [2021-03-12 00:05:29,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,018 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 32 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,045 INFO L129 PetriNetUnfolder]: 22/87 cut-off events. [2021-03-12 00:05:29,045 INFO L130 PetriNetUnfolder]: For 446/479 co-relation queries the response was YES. [2021-03-12 00:05:29,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 87 events. 22/87 cut-off events. For 446/479 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 376 event pairs, 1 based on Foata normal form. 10/79 useless extension candidates. Maximal degree in co-relation 244. Up to 14 conditions per place. [2021-03-12 00:05:29,046 INFO L132 encePairwiseOnDemand]: 30/35 looper letters, 13 selfloop transitions, 13 changer transitions 0/39 dead transitions. [2021-03-12 00:05:29,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 39 transitions, 389 flow [2021-03-12 00:05:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2021-03-12 00:05:29,047 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8114285714285714 [2021-03-12 00:05:29,047 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 142 transitions. [2021-03-12 00:05:29,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 142 transitions. [2021-03-12 00:05:29,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 142 transitions. [2021-03-12 00:05:29,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,049 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,049 INFO L185 Difference]: Start difference. First operand has 55 places, 32 transitions, 266 flow. Second operand 5 states and 142 transitions. [2021-03-12 00:05:29,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 39 transitions, 389 flow [2021-03-12 00:05:29,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 39 transitions, 339 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:29,052 INFO L241 Difference]: Finished difference. Result has 57 places, 38 transitions, 344 flow [2021-03-12 00:05:29,052 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2021-03-12 00:05:29,052 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 34 predicate places. [2021-03-12 00:05:29,052 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 344 flow [2021-03-12 00:05:29,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-12 00:05:29,053 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1775222341, now seen corresponding path program 3 times [2021-03-12 00:05:29,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521931175] [2021-03-12 00:05:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521931175] [2021-03-12 00:05:29,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762157147] [2021-03-12 00:05:29,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,069 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,094 INFO L129 PetriNetUnfolder]: 20/80 cut-off events. [2021-03-12 00:05:29,094 INFO L130 PetriNetUnfolder]: For 332/346 co-relation queries the response was YES. [2021-03-12 00:05:29,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 80 events. 20/80 cut-off events. For 332/346 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 334 event pairs, 0 based on Foata normal form. 4/70 useless extension candidates. Maximal degree in co-relation 242. Up to 16 conditions per place. [2021-03-12 00:05:29,095 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 17 selfloop transitions, 8 changer transitions 2/40 dead transitions. [2021-03-12 00:05:29,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 40 transitions, 418 flow [2021-03-12 00:05:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 00:05:29,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-12 00:05:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 138 transitions. [2021-03-12 00:05:29,096 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7885714285714286 [2021-03-12 00:05:29,096 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 138 transitions. [2021-03-12 00:05:29,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 138 transitions. [2021-03-12 00:05:29,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 138 transitions. [2021-03-12 00:05:29,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,097 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,097 INFO L185 Difference]: Start difference. First operand has 57 places, 38 transitions, 344 flow. Second operand 5 states and 138 transitions. [2021-03-12 00:05:29,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 40 transitions, 418 flow [2021-03-12 00:05:29,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 40 transitions, 410 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-03-12 00:05:29,101 INFO L241 Difference]: Finished difference. Result has 62 places, 36 transitions, 327 flow [2021-03-12 00:05:29,101 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=62, PETRI_TRANSITIONS=36} [2021-03-12 00:05:29,101 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 39 predicate places. [2021-03-12 00:05:29,101 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 36 transitions, 327 flow [2021-03-12 00:05:29,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,101 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,101 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-12 00:05:29,102 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 718012627, now seen corresponding path program 4 times [2021-03-12 00:05:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856931998] [2021-03-12 00:05:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:29,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856931998] [2021-03-12 00:05:29,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708102162] [2021-03-12 00:05:29,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,119 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 36 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,156 INFO L129 PetriNetUnfolder]: 20/77 cut-off events. [2021-03-12 00:05:29,156 INFO L130 PetriNetUnfolder]: For 418/440 co-relation queries the response was YES. [2021-03-12 00:05:29,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 77 events. 20/77 cut-off events. For 418/440 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 306 event pairs, 1 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 237. Up to 14 conditions per place. [2021-03-12 00:05:29,157 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2021-03-12 00:05:29,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 37 transitions, 386 flow [2021-03-12 00:05:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 00:05:29,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-12 00:05:29,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2021-03-12 00:05:29,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7785714285714286 [2021-03-12 00:05:29,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,160 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,160 INFO L185 Difference]: Start difference. First operand has 62 places, 36 transitions, 327 flow. Second operand 4 states and 109 transitions. [2021-03-12 00:05:29,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 37 transitions, 386 flow [2021-03-12 00:05:29,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 355 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:29,163 INFO L241 Difference]: Finished difference. Result has 60 places, 37 transitions, 330 flow [2021-03-12 00:05:29,163 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=60, PETRI_TRANSITIONS=37} [2021-03-12 00:05:29,163 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 37 predicate places. [2021-03-12 00:05:29,163 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 37 transitions, 330 flow [2021-03-12 00:05:29,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,164 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,164 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-12 00:05:29,164 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,164 INFO L82 PathProgramCache]: Analyzing trace with hash 426176273, now seen corresponding path program 5 times [2021-03-12 00:05:29,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285906928] [2021-03-12 00:05:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285906928] [2021-03-12 00:05:29,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071640133] [2021-03-12 00:05:29,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,181 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 37 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,201 INFO L129 PetriNetUnfolder]: 19/70 cut-off events. [2021-03-12 00:05:29,202 INFO L130 PetriNetUnfolder]: For 335/350 co-relation queries the response was YES. [2021-03-12 00:05:29,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 70 events. 19/70 cut-off events. For 335/350 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 272 event pairs, 1 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 217. Up to 21 conditions per place. [2021-03-12 00:05:29,203 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 19 selfloop transitions, 3 changer transitions 2/37 dead transitions. [2021-03-12 00:05:29,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 37 transitions, 369 flow [2021-03-12 00:05:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 00:05:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-12 00:05:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2021-03-12 00:05:29,204 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:05:29,204 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 108 transitions. [2021-03-12 00:05:29,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 108 transitions. [2021-03-12 00:05:29,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 108 transitions. [2021-03-12 00:05:29,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,205 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,205 INFO L185 Difference]: Start difference. First operand has 60 places, 37 transitions, 330 flow. Second operand 4 states and 108 transitions. [2021-03-12 00:05:29,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 37 transitions, 369 flow [2021-03-12 00:05:29,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 37 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:29,208 INFO L241 Difference]: Finished difference. Result has 61 places, 35 transitions, 305 flow [2021-03-12 00:05:29,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=61, PETRI_TRANSITIONS=35} [2021-03-12 00:05:29,208 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 38 predicate places. [2021-03-12 00:05:29,208 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 35 transitions, 305 flow [2021-03-12 00:05:29,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,209 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,209 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-12 00:05:29,209 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,209 INFO L82 PathProgramCache]: Analyzing trace with hash 938390336, now seen corresponding path program 2 times [2021-03-12 00:05:29,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439933191] [2021-03-12 00:05:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439933191] [2021-03-12 00:05:29,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876821293] [2021-03-12 00:05:29,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,226 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 35 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,247 INFO L129 PetriNetUnfolder]: 17/66 cut-off events. [2021-03-12 00:05:29,247 INFO L130 PetriNetUnfolder]: For 316/328 co-relation queries the response was YES. [2021-03-12 00:05:29,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 66 events. 17/66 cut-off events. For 316/328 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 246 event pairs, 0 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 201. Up to 18 conditions per place. [2021-03-12 00:05:29,248 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 19 selfloop transitions, 3 changer transitions 1/36 dead transitions. [2021-03-12 00:05:29,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 36 transitions, 362 flow [2021-03-12 00:05:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 00:05:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-12 00:05:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2021-03-12 00:05:29,249 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7785714285714286 [2021-03-12 00:05:29,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,250 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,251 INFO L185 Difference]: Start difference. First operand has 61 places, 35 transitions, 305 flow. Second operand 4 states and 109 transitions. [2021-03-12 00:05:29,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 36 transitions, 362 flow [2021-03-12 00:05:29,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 36 transitions, 353 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:29,253 INFO L241 Difference]: Finished difference. Result has 63 places, 35 transitions, 309 flow [2021-03-12 00:05:29,253 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=309, PETRI_PLACES=63, PETRI_TRANSITIONS=35} [2021-03-12 00:05:29,254 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 40 predicate places. [2021-03-12 00:05:29,254 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 35 transitions, 309 flow [2021-03-12 00:05:29,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,254 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,254 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-12 00:05:29,254 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1106386476, now seen corresponding path program 3 times [2021-03-12 00:05:29,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329710651] [2021-03-12 00:05:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:05:29,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:05:29,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329710651] [2021-03-12 00:05:29,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 00:05:29,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272370376] [2021-03-12 00:05:29,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 00:05:29,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 00:05:29,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 00:05:29,271 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 35 [2021-03-12 00:05:29,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 35 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 35 [2021-03-12 00:05:29,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,291 INFO L129 PetriNetUnfolder]: 15/56 cut-off events. [2021-03-12 00:05:29,291 INFO L130 PetriNetUnfolder]: For 293/305 co-relation queries the response was YES. [2021-03-12 00:05:29,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 56 events. 15/56 cut-off events. For 293/305 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 200 event pairs, 0 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 191. Up to 11 conditions per place. [2021-03-12 00:05:29,292 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 15 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2021-03-12 00:05:29,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 35 transitions, 341 flow [2021-03-12 00:05:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 00:05:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-12 00:05:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2021-03-12 00:05:29,293 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7785714285714286 [2021-03-12 00:05:29,293 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 109 transitions. [2021-03-12 00:05:29,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,294 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,294 INFO L185 Difference]: Start difference. First operand has 63 places, 35 transitions, 309 flow. Second operand 4 states and 109 transitions. [2021-03-12 00:05:29,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 35 transitions, 341 flow [2021-03-12 00:05:29,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 35 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:29,297 INFO L241 Difference]: Finished difference. Result has 63 places, 34 transitions, 297 flow [2021-03-12 00:05:29,297 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=63, PETRI_TRANSITIONS=34} [2021-03-12 00:05:29,297 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 40 predicate places. [2021-03-12 00:05:29,297 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 34 transitions, 297 flow [2021-03-12 00:05:29,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,297 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,297 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-12 00:05:29,298 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1947481515, now seen corresponding path program 1 times [2021-03-12 00:05:29,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361495420] [2021-03-12 00:05:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:29,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:29,323 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:29,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:29,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:29,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361495420] [2021-03-12 00:05:29,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:29,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832415892] [2021-03-12 00:05:29,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:29,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:29,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:29,366 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:29,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 34 transitions, 297 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:29,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,528 INFO L129 PetriNetUnfolder]: 175/323 cut-off events. [2021-03-12 00:05:29,528 INFO L130 PetriNetUnfolder]: For 1062/1107 co-relation queries the response was YES. [2021-03-12 00:05:29,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 323 events. 175/323 cut-off events. For 1062/1107 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1414 event pairs, 36 based on Foata normal form. 9/233 useless extension candidates. Maximal degree in co-relation 1014. Up to 153 conditions per place. [2021-03-12 00:05:29,531 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 37 selfloop transitions, 16 changer transitions 11/70 dead transitions. [2021-03-12 00:05:29,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 70 transitions, 627 flow [2021-03-12 00:05:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:29,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:29,532 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:29,532 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:29,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:29,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:29,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,534 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,534 INFO L185 Difference]: Start difference. First operand has 63 places, 34 transitions, 297 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:29,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 70 transitions, 627 flow [2021-03-12 00:05:29,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 606 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:29,538 INFO L241 Difference]: Finished difference. Result has 73 places, 39 transitions, 342 flow [2021-03-12 00:05:29,539 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=342, PETRI_PLACES=73, PETRI_TRANSITIONS=39} [2021-03-12 00:05:29,539 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 50 predicate places. [2021-03-12 00:05:29,539 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 39 transitions, 342 flow [2021-03-12 00:05:29,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,539 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,539 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-12 00:05:29,539 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1497107127, now seen corresponding path program 2 times [2021-03-12 00:05:29,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064551489] [2021-03-12 00:05:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:29,559 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:29,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:29,565 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:29,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:29,577 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:29,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:29,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:29,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064551489] [2021-03-12 00:05:29,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:29,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969831559] [2021-03-12 00:05:29,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:29,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:29,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:29,615 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:29,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 39 transitions, 342 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:29,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:29,836 INFO L129 PetriNetUnfolder]: 164/309 cut-off events. [2021-03-12 00:05:29,836 INFO L130 PetriNetUnfolder]: For 1048/1061 co-relation queries the response was YES. [2021-03-12 00:05:29,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 309 events. 164/309 cut-off events. For 1048/1061 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1344 event pairs, 22 based on Foata normal form. 7/265 useless extension candidates. Maximal degree in co-relation 1179. Up to 125 conditions per place. [2021-03-12 00:05:29,839 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 47 selfloop transitions, 19 changer transitions 1/73 dead transitions. [2021-03-12 00:05:29,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 709 flow [2021-03-12 00:05:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:29,840 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:29,840 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:29,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:29,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:29,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:29,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,841 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,841 INFO L185 Difference]: Start difference. First operand has 73 places, 39 transitions, 342 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:29,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 709 flow [2021-03-12 00:05:29,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 611 flow, removed 32 selfloop flow, removed 10 redundant places. [2021-03-12 00:05:29,845 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 449 flow [2021-03-12 00:05:29,845 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=449, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-03-12 00:05:29,845 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 37 predicate places. [2021-03-12 00:05:29,845 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 449 flow [2021-03-12 00:05:29,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,846 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:29,846 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:29,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-12 00:05:29,846 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:29,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:29,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1587705577, now seen corresponding path program 3 times [2021-03-12 00:05:29,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:29,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508777769] [2021-03-12 00:05:29,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:29,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:29,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:29,874 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:29,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:29,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:29,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:29,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:29,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508777769] [2021-03-12 00:05:29,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:29,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:29,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177723472] [2021-03-12 00:05:29,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:29,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:29,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:29,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:29,906 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:29,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 449 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:29,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:29,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:29,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:30,079 INFO L129 PetriNetUnfolder]: 179/339 cut-off events. [2021-03-12 00:05:30,080 INFO L130 PetriNetUnfolder]: For 1002/1028 co-relation queries the response was YES. [2021-03-12 00:05:30,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 339 events. 179/339 cut-off events. For 1002/1028 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1482 event pairs, 27 based on Foata normal form. 9/293 useless extension candidates. Maximal degree in co-relation 1495. Up to 129 conditions per place. [2021-03-12 00:05:30,085 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 38 selfloop transitions, 38 changer transitions 1/83 dead transitions. [2021-03-12 00:05:30,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 831 flow [2021-03-12 00:05:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:30,087 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:30,087 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:30,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:30,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:30,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:30,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,089 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,089 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 449 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:30,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 831 flow [2021-03-12 00:05:30,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 83 transitions, 785 flow, removed 17 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:30,094 INFO L241 Difference]: Finished difference. Result has 69 places, 64 transitions, 647 flow [2021-03-12 00:05:30,094 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=647, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2021-03-12 00:05:30,094 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 46 predicate places. [2021-03-12 00:05:30,094 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 647 flow [2021-03-12 00:05:30,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,094 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:30,094 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:30,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-12 00:05:30,095 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:30,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1606138665, now seen corresponding path program 4 times [2021-03-12 00:05:30,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:30,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778807446] [2021-03-12 00:05:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:30,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:30,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:30,131 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:30,137 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:30,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:30,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:30,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:30,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778807446] [2021-03-12 00:05:30,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:30,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:30,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374265328] [2021-03-12 00:05:30,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:30,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:30,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:30,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:30,184 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:30,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 647 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:30,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:30,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:30,357 INFO L129 PetriNetUnfolder]: 179/355 cut-off events. [2021-03-12 00:05:30,357 INFO L130 PetriNetUnfolder]: For 1405/1419 co-relation queries the response was YES. [2021-03-12 00:05:30,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 355 events. 179/355 cut-off events. For 1405/1419 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1674 event pairs, 23 based on Foata normal form. 6/312 useless extension candidates. Maximal degree in co-relation 1695. Up to 129 conditions per place. [2021-03-12 00:05:30,360 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 62 selfloop transitions, 25 changer transitions 1/94 dead transitions. [2021-03-12 00:05:30,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 94 transitions, 1073 flow [2021-03-12 00:05:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:30,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:30,361 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:30,362 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:30,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:30,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:30,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:30,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,363 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,363 INFO L185 Difference]: Start difference. First operand has 69 places, 64 transitions, 647 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:30,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 94 transitions, 1073 flow [2021-03-12 00:05:30,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 94 transitions, 977 flow, removed 31 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:30,370 INFO L241 Difference]: Finished difference. Result has 76 places, 67 transitions, 699 flow [2021-03-12 00:05:30,370 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=699, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2021-03-12 00:05:30,370 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 53 predicate places. [2021-03-12 00:05:30,370 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 699 flow [2021-03-12 00:05:30,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:30,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:30,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-12 00:05:30,370 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:30,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1947006103, now seen corresponding path program 5 times [2021-03-12 00:05:30,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:30,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608752755] [2021-03-12 00:05:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:30,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:30,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:30,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:30,414 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:30,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:30,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:30,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:30,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608752755] [2021-03-12 00:05:30,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:30,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:30,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162257857] [2021-03-12 00:05:30,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:30,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:30,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:30,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:30,451 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:30,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 699 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:30,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:30,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:30,672 INFO L129 PetriNetUnfolder]: 182/353 cut-off events. [2021-03-12 00:05:30,672 INFO L130 PetriNetUnfolder]: For 1455/1481 co-relation queries the response was YES. [2021-03-12 00:05:30,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1676 conditions, 353 events. 182/353 cut-off events. For 1455/1481 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1594 event pairs, 27 based on Foata normal form. 9/312 useless extension candidates. Maximal degree in co-relation 1647. Up to 129 conditions per place. [2021-03-12 00:05:30,676 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 41 selfloop transitions, 45 changer transitions 1/93 dead transitions. [2021-03-12 00:05:30,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 93 transitions, 1071 flow [2021-03-12 00:05:30,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:30,677 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:30,677 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:30,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:30,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:30,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:30,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,678 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,679 INFO L185 Difference]: Start difference. First operand has 76 places, 67 transitions, 699 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:30,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 93 transitions, 1071 flow [2021-03-12 00:05:30,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 1011 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:30,684 INFO L241 Difference]: Finished difference. Result has 82 places, 74 transitions, 856 flow [2021-03-12 00:05:30,685 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=856, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2021-03-12 00:05:30,685 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 59 predicate places. [2021-03-12 00:05:30,685 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 856 flow [2021-03-12 00:05:30,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,685 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:30,685 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:30,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-12 00:05:30,685 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:30,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1188294959, now seen corresponding path program 6 times [2021-03-12 00:05:30,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:30,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611954027] [2021-03-12 00:05:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:30,701 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:30,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:30,707 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:30,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:30,717 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:30,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:30,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:30,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:30,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611954027] [2021-03-12 00:05:30,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:30,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:30,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985738030] [2021-03-12 00:05:30,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:30,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:30,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:30,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:30,753 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:30,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 856 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:30,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:30,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:30,978 INFO L129 PetriNetUnfolder]: 182/355 cut-off events. [2021-03-12 00:05:30,979 INFO L130 PetriNetUnfolder]: For 1678/1704 co-relation queries the response was YES. [2021-03-12 00:05:30,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 355 events. 182/355 cut-off events. For 1678/1704 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1619 event pairs, 26 based on Foata normal form. 12/318 useless extension candidates. Maximal degree in co-relation 1727. Up to 129 conditions per place. [2021-03-12 00:05:30,982 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 62 selfloop transitions, 30 changer transitions 1/99 dead transitions. [2021-03-12 00:05:30,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 99 transitions, 1233 flow [2021-03-12 00:05:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:30,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:05:30,983 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:05:30,983 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:05:30,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:05:30,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:30,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:05:30,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,985 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,985 INFO L185 Difference]: Start difference. First operand has 82 places, 74 transitions, 856 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:05:30,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 99 transitions, 1233 flow [2021-03-12 00:05:30,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 99 transitions, 1151 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:30,994 INFO L241 Difference]: Finished difference. Result has 87 places, 76 transitions, 882 flow [2021-03-12 00:05:30,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=882, PETRI_PLACES=87, PETRI_TRANSITIONS=76} [2021-03-12 00:05:30,994 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 64 predicate places. [2021-03-12 00:05:30,994 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 76 transitions, 882 flow [2021-03-12 00:05:30,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:30,995 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:30,995 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:30,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-12 00:05:30,995 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:30,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:30,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1595649981, now seen corresponding path program 7 times [2021-03-12 00:05:30,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:30,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917028263] [2021-03-12 00:05:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:31,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:31,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:31,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:31,041 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:31,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:31,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:31,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:31,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:31,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917028263] [2021-03-12 00:05:31,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:31,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:31,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130412744] [2021-03-12 00:05:31,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:31,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:31,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:31,088 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:31,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 76 transitions, 882 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:31,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:31,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:31,314 INFO L129 PetriNetUnfolder]: 182/353 cut-off events. [2021-03-12 00:05:31,314 INFO L130 PetriNetUnfolder]: For 1698/1724 co-relation queries the response was YES. [2021-03-12 00:05:31,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1756 conditions, 353 events. 182/353 cut-off events. For 1698/1724 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1619 event pairs, 28 based on Foata normal form. 9/312 useless extension candidates. Maximal degree in co-relation 1722. Up to 129 conditions per place. [2021-03-12 00:05:31,318 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 56 selfloop transitions, 40 changer transitions 1/103 dead transitions. [2021-03-12 00:05:31,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 103 transitions, 1282 flow [2021-03-12 00:05:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:31,320 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:31,320 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:31,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,322 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,322 INFO L185 Difference]: Start difference. First operand has 87 places, 76 transitions, 882 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:31,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 103 transitions, 1282 flow [2021-03-12 00:05:31,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 103 transitions, 1213 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:31,329 INFO L241 Difference]: Finished difference. Result has 93 places, 80 transitions, 1009 flow [2021-03-12 00:05:31,329 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1009, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2021-03-12 00:05:31,329 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 70 predicate places. [2021-03-12 00:05:31,329 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 1009 flow [2021-03-12 00:05:31,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,330 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:31,330 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:31,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-12 00:05:31,331 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:31,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1301579075, now seen corresponding path program 8 times [2021-03-12 00:05:31,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:31,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761664787] [2021-03-12 00:05:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:31,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:31,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:31,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:31,360 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:31,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:31,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:31,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:31,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:31,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761664787] [2021-03-12 00:05:31,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:31,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:31,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006024163] [2021-03-12 00:05:31,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:31,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:31,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:31,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:31,408 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:31,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 1009 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:31,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:31,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:31,661 INFO L129 PetriNetUnfolder]: 235/498 cut-off events. [2021-03-12 00:05:31,661 INFO L130 PetriNetUnfolder]: For 2511/2537 co-relation queries the response was YES. [2021-03-12 00:05:31,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 498 events. 235/498 cut-off events. For 2511/2537 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2682 event pairs, 28 based on Foata normal form. 9/432 useless extension candidates. Maximal degree in co-relation 2409. Up to 140 conditions per place. [2021-03-12 00:05:31,680 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 77 selfloop transitions, 44 changer transitions 1/128 dead transitions. [2021-03-12 00:05:31,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 128 transitions, 1739 flow [2021-03-12 00:05:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:31,681 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:31,681 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:31,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:31,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,683 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,683 INFO L185 Difference]: Start difference. First operand has 93 places, 80 transitions, 1009 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:31,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 128 transitions, 1739 flow [2021-03-12 00:05:31,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 1638 flow, removed 25 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:31,694 INFO L241 Difference]: Finished difference. Result has 102 places, 95 transitions, 1297 flow [2021-03-12 00:05:31,694 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1297, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2021-03-12 00:05:31,694 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 79 predicate places. [2021-03-12 00:05:31,694 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 1297 flow [2021-03-12 00:05:31,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,694 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:31,694 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:31,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-12 00:05:31,695 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 206788885, now seen corresponding path program 9 times [2021-03-12 00:05:31,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:31,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781142707] [2021-03-12 00:05:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:31,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:31,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:31,709 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:31,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:31,715 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:31,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:31,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:31,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:31,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:31,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:31,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781142707] [2021-03-12 00:05:31,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:31,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:31,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528187701] [2021-03-12 00:05:31,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:31,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:31,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:31,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:31,764 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:31,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 1297 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:31,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:31,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:31,974 INFO L129 PetriNetUnfolder]: 235/498 cut-off events. [2021-03-12 00:05:31,975 INFO L130 PetriNetUnfolder]: For 3338/3399 co-relation queries the response was YES. [2021-03-12 00:05:31,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 498 events. 235/498 cut-off events. For 3338/3399 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2693 event pairs, 26 based on Foata normal form. 18/488 useless extension candidates. Maximal degree in co-relation 2681. Up to 151 conditions per place. [2021-03-12 00:05:31,980 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 75 selfloop transitions, 45 changer transitions 1/127 dead transitions. [2021-03-12 00:05:31,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 127 transitions, 1871 flow [2021-03-12 00:05:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:31,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:31,982 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:31,982 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:31,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:31,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:31,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:31,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,983 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,983 INFO L185 Difference]: Start difference. First operand has 102 places, 95 transitions, 1297 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:31,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 127 transitions, 1871 flow [2021-03-12 00:05:31,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 127 transitions, 1830 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:31,998 INFO L241 Difference]: Finished difference. Result has 111 places, 105 transitions, 1568 flow [2021-03-12 00:05:31,998 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1568, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2021-03-12 00:05:31,998 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 88 predicate places. [2021-03-12 00:05:31,998 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 1568 flow [2021-03-12 00:05:31,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:31,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:31,999 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:31,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-12 00:05:31,999 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:31,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:31,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1012851539, now seen corresponding path program 10 times [2021-03-12 00:05:32,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:32,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696925869] [2021-03-12 00:05:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:32,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:32,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:32,014 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:32,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:32,020 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:32,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:32,036 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:32,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:32,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:32,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:32,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696925869] [2021-03-12 00:05:32,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:32,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:32,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354799311] [2021-03-12 00:05:32,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:32,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:32,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:32,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:32,080 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:32,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 1568 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:32,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:32,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:32,339 INFO L129 PetriNetUnfolder]: 234/499 cut-off events. [2021-03-12 00:05:32,339 INFO L130 PetriNetUnfolder]: For 4170/4253 co-relation queries the response was YES. [2021-03-12 00:05:32,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 499 events. 234/499 cut-off events. For 4170/4253 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2704 event pairs, 27 based on Foata normal form. 24/495 useless extension candidates. Maximal degree in co-relation 2822. Up to 151 conditions per place. [2021-03-12 00:05:32,346 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 72 selfloop transitions, 47 changer transitions 1/126 dead transitions. [2021-03-12 00:05:32,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 1990 flow [2021-03-12 00:05:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:32,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:32,347 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:32,347 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:32,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:32,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:32,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:32,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,348 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,348 INFO L185 Difference]: Start difference. First operand has 111 places, 105 transitions, 1568 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:32,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 1990 flow [2021-03-12 00:05:32,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 126 transitions, 1910 flow, removed 20 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:32,369 INFO L241 Difference]: Finished difference. Result has 118 places, 110 transitions, 1711 flow [2021-03-12 00:05:32,369 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1711, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2021-03-12 00:05:32,369 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 95 predicate places. [2021-03-12 00:05:32,370 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 1711 flow [2021-03-12 00:05:32,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,370 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:32,370 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:32,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-12 00:05:32,371 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:32,371 INFO L82 PathProgramCache]: Analyzing trace with hash -433680965, now seen corresponding path program 11 times [2021-03-12 00:05:32,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:32,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906473557] [2021-03-12 00:05:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:32,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:32,412 INFO L142 QuantifierPusher]: treesize reduction 15, result has 37.5 percent of original size [2021-03-12 00:05:32,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:05:32,418 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:32,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:32,434 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:32,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:32,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:32,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906473557] [2021-03-12 00:05:32,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:32,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:32,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913337359] [2021-03-12 00:05:32,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:32,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:32,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:32,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:32,475 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:32,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 1711 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:32,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:32,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:32,787 INFO L129 PetriNetUnfolder]: 234/497 cut-off events. [2021-03-12 00:05:32,787 INFO L130 PetriNetUnfolder]: For 4305/4380 co-relation queries the response was YES. [2021-03-12 00:05:32,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 497 events. 234/497 cut-off events. For 4305/4380 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2705 event pairs, 27 based on Foata normal form. 24/493 useless extension candidates. Maximal degree in co-relation 2887. Up to 151 conditions per place. [2021-03-12 00:05:32,794 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 71 selfloop transitions, 48 changer transitions 1/126 dead transitions. [2021-03-12 00:05:32,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 126 transitions, 2079 flow [2021-03-12 00:05:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:32,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:05:32,795 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:05:32,795 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:05:32,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:05:32,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:32,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:05:32,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,796 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,796 INFO L185 Difference]: Start difference. First operand has 118 places, 110 transitions, 1711 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:05:32,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 126 transitions, 2079 flow [2021-03-12 00:05:32,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 126 transitions, 2013 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:32,816 INFO L241 Difference]: Finished difference. Result has 124 places, 112 transitions, 1796 flow [2021-03-12 00:05:32,816 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1796, PETRI_PLACES=124, PETRI_TRANSITIONS=112} [2021-03-12 00:05:32,817 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 101 predicate places. [2021-03-12 00:05:32,817 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 112 transitions, 1796 flow [2021-03-12 00:05:32,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,817 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:32,817 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:32,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-12 00:05:32,817 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:32,817 INFO L82 PathProgramCache]: Analyzing trace with hash 741996701, now seen corresponding path program 12 times [2021-03-12 00:05:32,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:32,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488267210] [2021-03-12 00:05:32,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:32,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:32,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:32,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:32,844 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:32,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:32,860 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:32,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:32,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:32,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:32,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:32,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488267210] [2021-03-12 00:05:32,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:32,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:32,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324039560] [2021-03-12 00:05:32,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:32,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:32,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:32,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:32,900 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:32,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 112 transitions, 1796 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:32,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:32,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:32,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:33,191 INFO L129 PetriNetUnfolder]: 233/491 cut-off events. [2021-03-12 00:05:33,191 INFO L130 PetriNetUnfolder]: For 4361/4436 co-relation queries the response was YES. [2021-03-12 00:05:33,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2976 conditions, 491 events. 233/491 cut-off events. For 4361/4436 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2607 event pairs, 26 based on Foata normal form. 16/479 useless extension candidates. Maximal degree in co-relation 2924. Up to 140 conditions per place. [2021-03-12 00:05:33,197 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 69 selfloop transitions, 55 changer transitions 1/131 dead transitions. [2021-03-12 00:05:33,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 2184 flow [2021-03-12 00:05:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:33,198 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:33,198 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:33,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:33,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:33,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:33,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,199 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,199 INFO L185 Difference]: Start difference. First operand has 124 places, 112 transitions, 1796 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:33,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 131 transitions, 2184 flow [2021-03-12 00:05:33,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 2079 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:33,219 INFO L241 Difference]: Finished difference. Result has 127 places, 112 transitions, 1815 flow [2021-03-12 00:05:33,219 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1699, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1815, PETRI_PLACES=127, PETRI_TRANSITIONS=112} [2021-03-12 00:05:33,219 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 104 predicate places. [2021-03-12 00:05:33,219 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 112 transitions, 1815 flow [2021-03-12 00:05:33,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,219 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:33,219 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:33,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-12 00:05:33,220 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:33,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:33,220 INFO L82 PathProgramCache]: Analyzing trace with hash -811353291, now seen corresponding path program 13 times [2021-03-12 00:05:33,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:33,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691122546] [2021-03-12 00:05:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:33,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:33,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:33,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:33,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:33,243 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:33,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:33,251 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:33,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:33,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691122546] [2021-03-12 00:05:33,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:33,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:33,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967288192] [2021-03-12 00:05:33,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:33,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:33,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:33,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:33,277 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:33,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 112 transitions, 1815 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:33,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:33,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:33,488 INFO L129 PetriNetUnfolder]: 236/511 cut-off events. [2021-03-12 00:05:33,489 INFO L130 PetriNetUnfolder]: For 4476/4499 co-relation queries the response was YES. [2021-03-12 00:05:33,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 511 events. 236/511 cut-off events. For 4476/4499 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2811 event pairs, 24 based on Foata normal form. 10/493 useless extension candidates. Maximal degree in co-relation 3050. Up to 142 conditions per place. [2021-03-12 00:05:33,495 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 65 selfloop transitions, 68 changer transitions 1/140 dead transitions. [2021-03-12 00:05:33,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 140 transitions, 2419 flow [2021-03-12 00:05:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:33,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:33,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:33,496 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:33,496 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:33,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:33,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:33,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:33,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,498 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,498 INFO L185 Difference]: Start difference. First operand has 127 places, 112 transitions, 1815 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:33,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 140 transitions, 2419 flow [2021-03-12 00:05:33,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 140 transitions, 2299 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:33,522 INFO L241 Difference]: Finished difference. Result has 132 places, 123 transitions, 2065 flow [2021-03-12 00:05:33,522 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1718, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2065, PETRI_PLACES=132, PETRI_TRANSITIONS=123} [2021-03-12 00:05:33,522 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 109 predicate places. [2021-03-12 00:05:33,522 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 123 transitions, 2065 flow [2021-03-12 00:05:33,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,522 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:33,522 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:33,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-12 00:05:33,523 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:33,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1615867945, now seen corresponding path program 14 times [2021-03-12 00:05:33,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:33,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363817850] [2021-03-12 00:05:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:33,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:33,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:33,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:33,557 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:33,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:33,568 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:33,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:33,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:33,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:33,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363817850] [2021-03-12 00:05:33,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:33,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:33,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324630395] [2021-03-12 00:05:33,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:33,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:33,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:33,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:33,606 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:33,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 123 transitions, 2065 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:33,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:33,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:33,895 INFO L129 PetriNetUnfolder]: 236/506 cut-off events. [2021-03-12 00:05:33,895 INFO L130 PetriNetUnfolder]: For 4624/4699 co-relation queries the response was YES. [2021-03-12 00:05:33,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3159 conditions, 506 events. 236/506 cut-off events. For 4624/4699 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2756 event pairs, 24 based on Foata normal form. 16/494 useless extension candidates. Maximal degree in co-relation 3104. Up to 142 conditions per place. [2021-03-12 00:05:33,902 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 73 selfloop transitions, 59 changer transitions 1/139 dead transitions. [2021-03-12 00:05:33,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 139 transitions, 2441 flow [2021-03-12 00:05:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:33,903 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:33,903 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:33,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:33,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:33,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:33,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,904 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,904 INFO L185 Difference]: Start difference. First operand has 132 places, 123 transitions, 2065 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:33,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 139 transitions, 2441 flow [2021-03-12 00:05:33,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 139 transitions, 2333 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:33,927 INFO L241 Difference]: Finished difference. Result has 135 places, 122 transitions, 2066 flow [2021-03-12 00:05:33,927 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1963, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2066, PETRI_PLACES=135, PETRI_TRANSITIONS=122} [2021-03-12 00:05:33,929 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 112 predicate places. [2021-03-12 00:05:33,929 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 122 transitions, 2066 flow [2021-03-12 00:05:33,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:33,929 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:33,929 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:33,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-12 00:05:33,930 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:33,930 INFO L82 PathProgramCache]: Analyzing trace with hash -138084675, now seen corresponding path program 15 times [2021-03-12 00:05:33,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:33,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214497122] [2021-03-12 00:05:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:33,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:33,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:33,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:33,951 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:33,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:33,957 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:33,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:33,966 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:33,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:33,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:33,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214497122] [2021-03-12 00:05:33,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:33,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:33,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043589471] [2021-03-12 00:05:33,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:33,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:33,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:33,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:33,999 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:33,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 122 transitions, 2066 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:34,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:34,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:34,213 INFO L129 PetriNetUnfolder]: 236/504 cut-off events. [2021-03-12 00:05:34,213 INFO L130 PetriNetUnfolder]: For 4681/4756 co-relation queries the response was YES. [2021-03-12 00:05:34,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3149 conditions, 504 events. 236/504 cut-off events. For 4681/4756 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2735 event pairs, 22 based on Foata normal form. 16/492 useless extension candidates. Maximal degree in co-relation 3094. Up to 142 conditions per place. [2021-03-12 00:05:34,220 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 77 selfloop transitions, 62 changer transitions 1/146 dead transitions. [2021-03-12 00:05:34,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 2606 flow [2021-03-12 00:05:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:34,221 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:34,221 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:34,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:34,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:34,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:34,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,222 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,222 INFO L185 Difference]: Start difference. First operand has 135 places, 122 transitions, 2066 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:34,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 2606 flow [2021-03-12 00:05:34,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 2483 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:34,247 INFO L241 Difference]: Finished difference. Result has 140 places, 127 transitions, 2204 flow [2021-03-12 00:05:34,247 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1953, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2204, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2021-03-12 00:05:34,248 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 117 predicate places. [2021-03-12 00:05:34,248 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 2204 flow [2021-03-12 00:05:34,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,248 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:34,248 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:34,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-12 00:05:34,248 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:34,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:34,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1670822467, now seen corresponding path program 16 times [2021-03-12 00:05:34,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:34,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68160971] [2021-03-12 00:05:34,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:34,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:34,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:34,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:34,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:34,281 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:34,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:34,290 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:34,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:34,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:34,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68160971] [2021-03-12 00:05:34,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:34,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:34,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655894509] [2021-03-12 00:05:34,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:34,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:34,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:34,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:34,317 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:34,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 2204 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:34,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:34,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:34,521 INFO L129 PetriNetUnfolder]: 236/496 cut-off events. [2021-03-12 00:05:34,521 INFO L130 PetriNetUnfolder]: For 4774/4849 co-relation queries the response was YES. [2021-03-12 00:05:34,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3160 conditions, 496 events. 236/496 cut-off events. For 4774/4849 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2648 event pairs, 24 based on Foata normal form. 16/484 useless extension candidates. Maximal degree in co-relation 3102. Up to 142 conditions per place. [2021-03-12 00:05:34,527 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 61 selfloop transitions, 74 changer transitions 1/142 dead transitions. [2021-03-12 00:05:34,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 2598 flow [2021-03-12 00:05:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:34,528 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:34,528 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:34,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:34,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:34,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:34,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,530 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,530 INFO L185 Difference]: Start difference. First operand has 140 places, 127 transitions, 2204 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:34,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 2598 flow [2021-03-12 00:05:34,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 142 transitions, 2495 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:34,555 INFO L241 Difference]: Finished difference. Result has 144 places, 128 transitions, 2287 flow [2021-03-12 00:05:34,555 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2111, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2287, PETRI_PLACES=144, PETRI_TRANSITIONS=128} [2021-03-12 00:05:34,555 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 121 predicate places. [2021-03-12 00:05:34,555 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 128 transitions, 2287 flow [2021-03-12 00:05:34,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,555 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:34,555 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:34,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-12 00:05:34,556 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:34,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:34,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1465815805, now seen corresponding path program 17 times [2021-03-12 00:05:34,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:34,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161802886] [2021-03-12 00:05:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:34,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:34,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:34,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:34,572 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:34,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:34,578 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:34,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:34,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:34,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161802886] [2021-03-12 00:05:34,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:34,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:34,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363588307] [2021-03-12 00:05:34,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:34,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:34,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:34,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:34,608 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:34,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 128 transitions, 2287 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:34,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:34,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:34,816 INFO L129 PetriNetUnfolder]: 236/494 cut-off events. [2021-03-12 00:05:34,816 INFO L130 PetriNetUnfolder]: For 4736/4811 co-relation queries the response was YES. [2021-03-12 00:05:34,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 494 events. 236/494 cut-off events. For 4736/4811 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2631 event pairs, 22 based on Foata normal form. 16/482 useless extension candidates. Maximal degree in co-relation 3121. Up to 142 conditions per place. [2021-03-12 00:05:34,822 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 75 selfloop transitions, 63 changer transitions 1/145 dead transitions. [2021-03-12 00:05:34,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 2709 flow [2021-03-12 00:05:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:34,823 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:34,824 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:34,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:34,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:34,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:34,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,825 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,825 INFO L185 Difference]: Start difference. First operand has 144 places, 128 transitions, 2287 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:34,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 2709 flow [2021-03-12 00:05:34,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 145 transitions, 2568 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-12 00:05:34,850 INFO L241 Difference]: Finished difference. Result has 145 places, 128 transitions, 2304 flow [2021-03-12 00:05:34,850 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2150, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2304, PETRI_PLACES=145, PETRI_TRANSITIONS=128} [2021-03-12 00:05:34,850 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 122 predicate places. [2021-03-12 00:05:34,850 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 128 transitions, 2304 flow [2021-03-12 00:05:34,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,850 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:34,850 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:34,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-12 00:05:34,850 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:34,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1943229373, now seen corresponding path program 18 times [2021-03-12 00:05:34,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:34,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744197207] [2021-03-12 00:05:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:34,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:34,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:34,875 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:34,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:34,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:34,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:34,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:34,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744197207] [2021-03-12 00:05:34,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:34,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:34,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809325279] [2021-03-12 00:05:34,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:34,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:34,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:34,913 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:34,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 128 transitions, 2304 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:34,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:34,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:34,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:35,174 INFO L129 PetriNetUnfolder]: 236/489 cut-off events. [2021-03-12 00:05:35,174 INFO L130 PetriNetUnfolder]: For 4771/4846 co-relation queries the response was YES. [2021-03-12 00:05:35,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 489 events. 236/489 cut-off events. For 4771/4846 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2579 event pairs, 24 based on Foata normal form. 16/477 useless extension candidates. Maximal degree in co-relation 3124. Up to 142 conditions per place. [2021-03-12 00:05:35,180 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 63 selfloop transitions, 70 changer transitions 1/140 dead transitions. [2021-03-12 00:05:35,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 140 transitions, 2650 flow [2021-03-12 00:05:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:35,181 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:35,181 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:35,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:35,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:35,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:35,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,182 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,182 INFO L185 Difference]: Start difference. First operand has 145 places, 128 transitions, 2304 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:35,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 140 transitions, 2650 flow [2021-03-12 00:05:35,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 140 transitions, 2529 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:35,206 INFO L241 Difference]: Finished difference. Result has 147 places, 127 transitions, 2306 flow [2021-03-12 00:05:35,207 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2189, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2306, PETRI_PLACES=147, PETRI_TRANSITIONS=127} [2021-03-12 00:05:35,207 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 124 predicate places. [2021-03-12 00:05:35,207 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 127 transitions, 2306 flow [2021-03-12 00:05:35,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,207 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:35,207 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:35,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-12 00:05:35,207 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:35,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:35,208 INFO L82 PathProgramCache]: Analyzing trace with hash -110488227, now seen corresponding path program 19 times [2021-03-12 00:05:35,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:35,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885082069] [2021-03-12 00:05:35,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:35,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:35,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:35,230 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:35,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:35,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:35,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:35,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885082069] [2021-03-12 00:05:35,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:35,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:35,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298904456] [2021-03-12 00:05:35,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:35,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:35,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:35,262 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:35,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 127 transitions, 2306 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:35,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:35,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:35,462 INFO L129 PetriNetUnfolder]: 236/488 cut-off events. [2021-03-12 00:05:35,462 INFO L130 PetriNetUnfolder]: For 4624/4647 co-relation queries the response was YES. [2021-03-12 00:05:35,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 488 events. 236/488 cut-off events. For 4624/4647 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2566 event pairs, 23 based on Foata normal form. 10/470 useless extension candidates. Maximal degree in co-relation 3106. Up to 142 conditions per place. [2021-03-12 00:05:35,468 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 61 selfloop transitions, 70 changer transitions 1/138 dead transitions. [2021-03-12 00:05:35,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 138 transitions, 2644 flow [2021-03-12 00:05:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:35,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:35,469 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:35,469 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:35,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,470 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,470 INFO L185 Difference]: Start difference. First operand has 147 places, 127 transitions, 2306 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:35,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 138 transitions, 2644 flow [2021-03-12 00:05:35,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 138 transitions, 2509 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:35,495 INFO L241 Difference]: Finished difference. Result has 148 places, 126 transitions, 2298 flow [2021-03-12 00:05:35,495 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2175, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2298, PETRI_PLACES=148, PETRI_TRANSITIONS=126} [2021-03-12 00:05:35,495 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 125 predicate places. [2021-03-12 00:05:35,495 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 126 transitions, 2298 flow [2021-03-12 00:05:35,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,495 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:35,495 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:35,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-12 00:05:35,496 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:35,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1833783933, now seen corresponding path program 20 times [2021-03-12 00:05:35,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:35,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080415883] [2021-03-12 00:05:35,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:35,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:35,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:35,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:35,524 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:35,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:35,530 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:35,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:35,538 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:35,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:35,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:35,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080415883] [2021-03-12 00:05:35,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:35,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:35,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600471245] [2021-03-12 00:05:35,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:35,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:35,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:35,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:35,563 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:35,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 126 transitions, 2298 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:35,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:35,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:35,769 INFO L129 PetriNetUnfolder]: 239/499 cut-off events. [2021-03-12 00:05:35,769 INFO L130 PetriNetUnfolder]: For 4771/4794 co-relation queries the response was YES. [2021-03-12 00:05:35,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3238 conditions, 499 events. 239/499 cut-off events. For 4771/4794 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2651 event pairs, 22 based on Foata normal form. 10/481 useless extension candidates. Maximal degree in co-relation 3181. Up to 144 conditions per place. [2021-03-12 00:05:35,780 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 86 selfloop transitions, 77 changer transitions 1/170 dead transitions. [2021-03-12 00:05:35,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 170 transitions, 3237 flow [2021-03-12 00:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:35,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:35,782 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:35,782 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:35,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:35,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,784 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,784 INFO L185 Difference]: Start difference. First operand has 148 places, 126 transitions, 2298 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:35,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 170 transitions, 3237 flow [2021-03-12 00:05:35,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 170 transitions, 3111 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:35,808 INFO L241 Difference]: Finished difference. Result has 153 places, 140 transitions, 2663 flow [2021-03-12 00:05:35,809 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2197, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2663, PETRI_PLACES=153, PETRI_TRANSITIONS=140} [2021-03-12 00:05:35,809 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 130 predicate places. [2021-03-12 00:05:35,809 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 2663 flow [2021-03-12 00:05:35,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,809 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:35,809 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:35,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-12 00:05:35,809 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:35,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:35,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1306469793, now seen corresponding path program 21 times [2021-03-12 00:05:35,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:35,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766821614] [2021-03-12 00:05:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:35,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:35,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:35,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:35,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:35,838 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:35,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:35,846 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:35,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:35,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:35,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:35,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766821614] [2021-03-12 00:05:35,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:35,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:35,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493861755] [2021-03-12 00:05:35,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:35,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:35,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:35,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:35,871 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:35,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 140 transitions, 2663 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:35,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:35,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:35,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:36,064 INFO L129 PetriNetUnfolder]: 237/511 cut-off events. [2021-03-12 00:05:36,064 INFO L130 PetriNetUnfolder]: For 5510/5533 co-relation queries the response was YES. [2021-03-12 00:05:36,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3456 conditions, 511 events. 237/511 cut-off events. For 5510/5533 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2836 event pairs, 18 based on Foata normal form. 10/493 useless extension candidates. Maximal degree in co-relation 3397. Up to 145 conditions per place. [2021-03-12 00:05:36,071 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 75 selfloop transitions, 86 changer transitions 1/168 dead transitions. [2021-03-12 00:05:36,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 168 transitions, 3326 flow [2021-03-12 00:05:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:36,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:36,073 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:36,073 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:36,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:36,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:36,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:36,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,075 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,075 INFO L185 Difference]: Start difference. First operand has 153 places, 140 transitions, 2663 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:36,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 168 transitions, 3326 flow [2021-03-12 00:05:36,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 168 transitions, 3212 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:36,104 INFO L241 Difference]: Finished difference. Result has 161 places, 155 transitions, 3096 flow [2021-03-12 00:05:36,104 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2578, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3096, PETRI_PLACES=161, PETRI_TRANSITIONS=155} [2021-03-12 00:05:36,105 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 138 predicate places. [2021-03-12 00:05:36,105 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 155 transitions, 3096 flow [2021-03-12 00:05:36,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:36,105 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:36,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-12 00:05:36,105 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:36,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:36,105 INFO L82 PathProgramCache]: Analyzing trace with hash 635893693, now seen corresponding path program 22 times [2021-03-12 00:05:36,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:36,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326559021] [2021-03-12 00:05:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:36,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:36,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:36,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:36,125 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:36,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:36,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:36,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:36,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:36,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326559021] [2021-03-12 00:05:36,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:36,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:36,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161337448] [2021-03-12 00:05:36,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:36,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:36,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:36,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:36,161 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:36,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 155 transitions, 3096 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:36,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:36,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:36,352 INFO L129 PetriNetUnfolder]: 237/499 cut-off events. [2021-03-12 00:05:36,352 INFO L130 PetriNetUnfolder]: For 6187/6261 co-relation queries the response was YES. [2021-03-12 00:05:36,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 499 events. 237/499 cut-off events. For 6187/6261 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2671 event pairs, 21 based on Foata normal form. 16/487 useless extension candidates. Maximal degree in co-relation 3484. Up to 145 conditions per place. [2021-03-12 00:05:36,359 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 94 selfloop transitions, 78 changer transitions 1/179 dead transitions. [2021-03-12 00:05:36,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 179 transitions, 3735 flow [2021-03-12 00:05:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:36,360 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:36,360 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:36,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,362 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,362 INFO L185 Difference]: Start difference. First operand has 161 places, 155 transitions, 3096 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:36,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 179 transitions, 3735 flow [2021-03-12 00:05:36,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 179 transitions, 3613 flow, removed 27 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:36,394 INFO L241 Difference]: Finished difference. Result has 166 places, 157 transitions, 3233 flow [2021-03-12 00:05:36,394 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=2992, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3233, PETRI_PLACES=166, PETRI_TRANSITIONS=157} [2021-03-12 00:05:36,394 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 143 predicate places. [2021-03-12 00:05:36,395 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 157 transitions, 3233 flow [2021-03-12 00:05:36,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:36,395 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:36,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-12 00:05:36,395 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:36,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:36,395 INFO L82 PathProgramCache]: Analyzing trace with hash 447000617, now seen corresponding path program 23 times [2021-03-12 00:05:36,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:36,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327312717] [2021-03-12 00:05:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:36,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:36,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:36,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:36,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:36,417 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:36,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:36,425 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:36,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:36,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327312717] [2021-03-12 00:05:36,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:36,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:36,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364844005] [2021-03-12 00:05:36,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:36,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:36,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:36,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:36,451 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:36,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 157 transitions, 3233 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:36,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:36,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:36,668 INFO L129 PetriNetUnfolder]: 237/495 cut-off events. [2021-03-12 00:05:36,668 INFO L130 PetriNetUnfolder]: For 6278/6343 co-relation queries the response was YES. [2021-03-12 00:05:36,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3559 conditions, 495 events. 237/495 cut-off events. For 6278/6343 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2636 event pairs, 22 based on Foata normal form. 16/483 useless extension candidates. Maximal degree in co-relation 3495. Up to 145 conditions per place. [2021-03-12 00:05:36,673 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 82 selfloop transitions, 88 changer transitions 1/177 dead transitions. [2021-03-12 00:05:36,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 177 transitions, 3800 flow [2021-03-12 00:05:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:36,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:36,674 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:36,674 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:36,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:36,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:36,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:36,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,675 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,676 INFO L185 Difference]: Start difference. First operand has 166 places, 157 transitions, 3233 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:36,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 177 transitions, 3800 flow [2021-03-12 00:05:36,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 177 transitions, 3688 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:36,711 INFO L241 Difference]: Finished difference. Result has 170 places, 164 transitions, 3477 flow [2021-03-12 00:05:36,712 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3134, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3477, PETRI_PLACES=170, PETRI_TRANSITIONS=164} [2021-03-12 00:05:36,712 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 147 predicate places. [2021-03-12 00:05:36,712 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 164 transitions, 3477 flow [2021-03-12 00:05:36,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,712 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:36,712 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:36,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-12 00:05:36,712 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:36,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:36,712 INFO L82 PathProgramCache]: Analyzing trace with hash -420934197, now seen corresponding path program 24 times [2021-03-12 00:05:36,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:36,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939478531] [2021-03-12 00:05:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:36,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:36,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:36,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:36,733 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:36,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:36,739 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:36,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:36,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:36,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:36,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:36,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939478531] [2021-03-12 00:05:36,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:36,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:36,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725801525] [2021-03-12 00:05:36,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:36,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:36,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:36,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:36,769 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:36,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 164 transitions, 3477 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:36,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:36,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:36,959 INFO L129 PetriNetUnfolder]: 237/490 cut-off events. [2021-03-12 00:05:36,959 INFO L130 PetriNetUnfolder]: For 6530/6595 co-relation queries the response was YES. [2021-03-12 00:05:36,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3654 conditions, 490 events. 237/490 cut-off events. For 6530/6595 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2598 event pairs, 22 based on Foata normal form. 16/478 useless extension candidates. Maximal degree in co-relation 3590. Up to 145 conditions per place. [2021-03-12 00:05:36,964 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 84 selfloop transitions, 84 changer transitions 1/175 dead transitions. [2021-03-12 00:05:36,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 175 transitions, 3890 flow [2021-03-12 00:05:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:36,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:36,965 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:36,965 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:36,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:36,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,966 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:36,966 INFO L185 Difference]: Start difference. First operand has 170 places, 164 transitions, 3477 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:36,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 175 transitions, 3890 flow [2021-03-12 00:05:36,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 175 transitions, 3734 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:37,002 INFO L241 Difference]: Finished difference. Result has 173 places, 164 transitions, 3515 flow [2021-03-12 00:05:37,003 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3325, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3515, PETRI_PLACES=173, PETRI_TRANSITIONS=164} [2021-03-12 00:05:37,003 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 150 predicate places. [2021-03-12 00:05:37,003 INFO L480 AbstractCegarLoop]: Abstraction has has 173 places, 164 transitions, 3515 flow [2021-03-12 00:05:37,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,003 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:37,003 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:37,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-12 00:05:37,003 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash -328757023, now seen corresponding path program 25 times [2021-03-12 00:05:37,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:37,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344131466] [2021-03-12 00:05:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:37,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:37,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:37,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:37,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:37,025 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:37,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:37,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:37,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344131466] [2021-03-12 00:05:37,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:37,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:37,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174837880] [2021-03-12 00:05:37,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:37,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:37,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:37,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:37,060 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:37,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 164 transitions, 3515 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:37,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:37,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:37,313 INFO L129 PetriNetUnfolder]: 237/490 cut-off events. [2021-03-12 00:05:37,313 INFO L130 PetriNetUnfolder]: For 6386/6407 co-relation queries the response was YES. [2021-03-12 00:05:37,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3654 conditions, 490 events. 237/490 cut-off events. For 6386/6407 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2611 event pairs, 21 based on Foata normal form. 10/472 useless extension candidates. Maximal degree in co-relation 3590. Up to 145 conditions per place. [2021-03-12 00:05:37,318 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 85 selfloop transitions, 89 changer transitions 1/181 dead transitions. [2021-03-12 00:05:37,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 181 transitions, 4017 flow [2021-03-12 00:05:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:37,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:37,319 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:37,319 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:37,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:37,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:37,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:37,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,320 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,320 INFO L185 Difference]: Start difference. First operand has 173 places, 164 transitions, 3515 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:37,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 181 transitions, 4017 flow [2021-03-12 00:05:37,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 181 transitions, 3867 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:37,357 INFO L241 Difference]: Finished difference. Result has 177 places, 169 transitions, 3656 flow [2021-03-12 00:05:37,357 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3381, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3656, PETRI_PLACES=177, PETRI_TRANSITIONS=169} [2021-03-12 00:05:37,357 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 154 predicate places. [2021-03-12 00:05:37,358 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 169 transitions, 3656 flow [2021-03-12 00:05:37,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,358 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:37,358 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:37,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-12 00:05:37,358 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:37,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:37,358 INFO L82 PathProgramCache]: Analyzing trace with hash -2131540461, now seen corresponding path program 26 times [2021-03-12 00:05:37,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:37,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066432881] [2021-03-12 00:05:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:37,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:37,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:37,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:37,378 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:37,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:37,388 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:37,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:37,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:37,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:37,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066432881] [2021-03-12 00:05:37,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:37,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:37,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961568857] [2021-03-12 00:05:37,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:37,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:37,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:37,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:37,427 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:37,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 169 transitions, 3656 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:37,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:37,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:37,719 INFO L129 PetriNetUnfolder]: 237/483 cut-off events. [2021-03-12 00:05:37,719 INFO L130 PetriNetUnfolder]: For 6617/6682 co-relation queries the response was YES. [2021-03-12 00:05:37,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 483 events. 237/483 cut-off events. For 6617/6682 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2509 event pairs, 21 based on Foata normal form. 16/471 useless extension candidates. Maximal degree in co-relation 3608. Up to 145 conditions per place. [2021-03-12 00:05:37,724 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 93 selfloop transitions, 81 changer transitions 1/181 dead transitions. [2021-03-12 00:05:37,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 181 transitions, 4062 flow [2021-03-12 00:05:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:37,728 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:37,728 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:37,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:37,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:37,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:37,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,730 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,730 INFO L185 Difference]: Start difference. First operand has 177 places, 169 transitions, 3656 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:37,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 181 transitions, 4062 flow [2021-03-12 00:05:37,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 181 transitions, 3910 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:37,763 INFO L241 Difference]: Finished difference. Result has 180 places, 168 transitions, 3655 flow [2021-03-12 00:05:37,763 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3512, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3655, PETRI_PLACES=180, PETRI_TRANSITIONS=168} [2021-03-12 00:05:37,764 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 157 predicate places. [2021-03-12 00:05:37,764 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 168 transitions, 3655 flow [2021-03-12 00:05:37,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,764 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:37,764 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:37,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-12 00:05:37,764 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:37,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:37,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1278764163, now seen corresponding path program 27 times [2021-03-12 00:05:37,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:37,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984163919] [2021-03-12 00:05:37,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:37,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:37,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:37,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:37,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:37,786 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:37,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:37,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:37,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:37,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:37,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984163919] [2021-03-12 00:05:37,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:37,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:37,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683117989] [2021-03-12 00:05:37,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:37,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:37,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:37,815 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:37,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 168 transitions, 3655 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:37,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:37,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:37,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:38,013 INFO L129 PetriNetUnfolder]: 237/478 cut-off events. [2021-03-12 00:05:38,014 INFO L130 PetriNetUnfolder]: For 6637/6702 co-relation queries the response was YES. [2021-03-12 00:05:38,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 478 events. 237/478 cut-off events. For 6637/6702 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2450 event pairs, 21 based on Foata normal form. 16/466 useless extension candidates. Maximal degree in co-relation 3593. Up to 145 conditions per place. [2021-03-12 00:05:38,019 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 80 selfloop transitions, 92 changer transitions 1/179 dead transitions. [2021-03-12 00:05:38,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 179 transitions, 4083 flow [2021-03-12 00:05:38,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:38,020 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:38,020 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:38,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,022 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,022 INFO L185 Difference]: Start difference. First operand has 180 places, 168 transitions, 3655 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:38,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 179 transitions, 4083 flow [2021-03-12 00:05:38,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 179 transitions, 3905 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:38,062 INFO L241 Difference]: Finished difference. Result has 182 places, 169 transitions, 3689 flow [2021-03-12 00:05:38,062 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3486, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3689, PETRI_PLACES=182, PETRI_TRANSITIONS=169} [2021-03-12 00:05:38,062 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 159 predicate places. [2021-03-12 00:05:38,062 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 169 transitions, 3689 flow [2021-03-12 00:05:38,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,062 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:38,062 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:38,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-12 00:05:38,063 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:38,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2045252665, now seen corresponding path program 28 times [2021-03-12 00:05:38,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:38,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808517716] [2021-03-12 00:05:38,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:38,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:38,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:38,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:38,096 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:38,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:38,107 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:38,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:38,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:38,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:38,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808517716] [2021-03-12 00:05:38,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:38,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:38,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172368522] [2021-03-12 00:05:38,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:38,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:38,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:38,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:38,151 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:38,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 169 transitions, 3689 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:38,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:38,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:38,375 INFO L129 PetriNetUnfolder]: 237/476 cut-off events. [2021-03-12 00:05:38,375 INFO L130 PetriNetUnfolder]: For 6421/6486 co-relation queries the response was YES. [2021-03-12 00:05:38,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3646 conditions, 476 events. 237/476 cut-off events. For 6421/6486 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2441 event pairs, 22 based on Foata normal form. 16/464 useless extension candidates. Maximal degree in co-relation 3582. Up to 145 conditions per place. [2021-03-12 00:05:38,393 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 92 selfloop transitions, 81 changer transitions 1/180 dead transitions. [2021-03-12 00:05:38,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 180 transitions, 4089 flow [2021-03-12 00:05:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:38,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:38,394 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:38,394 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:38,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:38,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:38,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:38,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,396 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,396 INFO L185 Difference]: Start difference. First operand has 182 places, 169 transitions, 3689 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:38,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 180 transitions, 4089 flow [2021-03-12 00:05:38,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 180 transitions, 3915 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:38,429 INFO L241 Difference]: Finished difference. Result has 184 places, 168 transitions, 3664 flow [2021-03-12 00:05:38,429 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3521, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3664, PETRI_PLACES=184, PETRI_TRANSITIONS=168} [2021-03-12 00:05:38,429 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 161 predicate places. [2021-03-12 00:05:38,429 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 168 transitions, 3664 flow [2021-03-12 00:05:38,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,429 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:38,429 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:38,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-12 00:05:38,430 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:38,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:38,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1776506387, now seen corresponding path program 29 times [2021-03-12 00:05:38,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:38,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460229958] [2021-03-12 00:05:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:38,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:38,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:38,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:38,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:38,453 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:38,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:38,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:38,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460229958] [2021-03-12 00:05:38,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:38,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933943027] [2021-03-12 00:05:38,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:38,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:38,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:38,490 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:38,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 168 transitions, 3664 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:38,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:38,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:38,721 INFO L129 PetriNetUnfolder]: 237/472 cut-off events. [2021-03-12 00:05:38,722 INFO L130 PetriNetUnfolder]: For 6404/6469 co-relation queries the response was YES. [2021-03-12 00:05:38,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3629 conditions, 472 events. 237/472 cut-off events. For 6404/6469 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2368 event pairs, 22 based on Foata normal form. 16/460 useless extension candidates. Maximal degree in co-relation 3565. Up to 145 conditions per place. [2021-03-12 00:05:38,727 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 80 selfloop transitions, 90 changer transitions 1/177 dead transitions. [2021-03-12 00:05:38,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 177 transitions, 4050 flow [2021-03-12 00:05:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:38,728 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:38,728 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:38,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:38,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,729 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,729 INFO L185 Difference]: Start difference. First operand has 184 places, 168 transitions, 3664 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:38,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 177 transitions, 4050 flow [2021-03-12 00:05:38,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 177 transitions, 3880 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:38,766 INFO L241 Difference]: Finished difference. Result has 185 places, 167 transitions, 3658 flow [2021-03-12 00:05:38,766 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3500, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3658, PETRI_PLACES=185, PETRI_TRANSITIONS=167} [2021-03-12 00:05:38,766 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 162 predicate places. [2021-03-12 00:05:38,766 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 167 transitions, 3658 flow [2021-03-12 00:05:38,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,766 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:38,766 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:38,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-12 00:05:38,767 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash 530117507, now seen corresponding path program 30 times [2021-03-12 00:05:38,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:38,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785970055] [2021-03-12 00:05:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:38,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:38,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:38,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:38,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:38,789 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:38,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:38,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:38,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:38,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:38,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785970055] [2021-03-12 00:05:38,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:38,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:38,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731872929] [2021-03-12 00:05:38,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:38,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:38,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:38,818 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:38,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 167 transitions, 3658 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:38,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:38,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:38,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:39,031 INFO L129 PetriNetUnfolder]: 237/468 cut-off events. [2021-03-12 00:05:39,032 INFO L130 PetriNetUnfolder]: For 6372/6437 co-relation queries the response was YES. [2021-03-12 00:05:39,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 468 events. 237/468 cut-off events. For 6372/6437 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2345 event pairs, 21 based on Foata normal form. 16/456 useless extension candidates. Maximal degree in co-relation 3548. Up to 145 conditions per place. [2021-03-12 00:05:39,037 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 78 selfloop transitions, 90 changer transitions 1/175 dead transitions. [2021-03-12 00:05:39,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 175 transitions, 4036 flow [2021-03-12 00:05:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:39,038 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:39,038 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:39,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:39,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:39,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:39,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,039 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,039 INFO L185 Difference]: Start difference. First operand has 185 places, 167 transitions, 3658 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:39,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 175 transitions, 4036 flow [2021-03-12 00:05:39,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 175 transitions, 3923 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:39,078 INFO L241 Difference]: Finished difference. Result has 187 places, 166 transitions, 3707 flow [2021-03-12 00:05:39,078 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3549, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3707, PETRI_PLACES=187, PETRI_TRANSITIONS=166} [2021-03-12 00:05:39,078 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 164 predicate places. [2021-03-12 00:05:39,078 INFO L480 AbstractCegarLoop]: Abstraction has has 187 places, 166 transitions, 3707 flow [2021-03-12 00:05:39,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,078 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:39,078 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:39,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-12 00:05:39,078 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:39,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:39,079 INFO L82 PathProgramCache]: Analyzing trace with hash -59556051, now seen corresponding path program 31 times [2021-03-12 00:05:39,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:39,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633229405] [2021-03-12 00:05:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:39,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:39,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:39,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:39,097 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:39,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:39,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:39,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:39,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:39,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633229405] [2021-03-12 00:05:39,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:39,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:39,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841065235] [2021-03-12 00:05:39,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:39,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:39,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:39,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:39,132 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:39,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 166 transitions, 3707 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:39,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:39,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:39,289 INFO L129 PetriNetUnfolder]: 342/675 cut-off events. [2021-03-12 00:05:39,289 INFO L130 PetriNetUnfolder]: For 8555/8620 co-relation queries the response was YES. [2021-03-12 00:05:39,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4774 conditions, 675 events. 342/675 cut-off events. For 8555/8620 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3768 event pairs, 36 based on Foata normal form. 13/634 useless extension candidates. Maximal degree in co-relation 4712. Up to 280 conditions per place. [2021-03-12 00:05:39,295 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 158 selfloop transitions, 71 changer transitions 1/236 dead transitions. [2021-03-12 00:05:39,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 236 transitions, 5213 flow [2021-03-12 00:05:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:39,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:39,316 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:39,316 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:39,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:39,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:39,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:39,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,317 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,317 INFO L185 Difference]: Start difference. First operand has 187 places, 166 transitions, 3707 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:39,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 236 transitions, 5213 flow [2021-03-12 00:05:39,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 236 transitions, 4967 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-12 00:05:39,361 INFO L241 Difference]: Finished difference. Result has 192 places, 179 transitions, 3998 flow [2021-03-12 00:05:39,361 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3525, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3998, PETRI_PLACES=192, PETRI_TRANSITIONS=179} [2021-03-12 00:05:39,361 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 169 predicate places. [2021-03-12 00:05:39,361 INFO L480 AbstractCegarLoop]: Abstraction has has 192 places, 179 transitions, 3998 flow [2021-03-12 00:05:39,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,361 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:39,362 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:39,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-12 00:05:39,362 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:39,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:39,362 INFO L82 PathProgramCache]: Analyzing trace with hash 954438613, now seen corresponding path program 32 times [2021-03-12 00:05:39,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:39,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174773693] [2021-03-12 00:05:39,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:39,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:39,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:39,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:39,385 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:39,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:39,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:39,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:39,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:39,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174773693] [2021-03-12 00:05:39,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:39,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:39,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380623853] [2021-03-12 00:05:39,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:39,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:39,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:39,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:39,430 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:39,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 179 transitions, 3998 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:39,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:39,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:39,792 INFO L129 PetriNetUnfolder]: 488/965 cut-off events. [2021-03-12 00:05:39,792 INFO L130 PetriNetUnfolder]: For 11531/11594 co-relation queries the response was YES. [2021-03-12 00:05:39,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6674 conditions, 965 events. 488/965 cut-off events. For 11531/11594 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5742 event pairs, 72 based on Foata normal form. 5/929 useless extension candidates. Maximal degree in co-relation 6609. Up to 416 conditions per place. [2021-03-12 00:05:39,803 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 165 selfloop transitions, 65 changer transitions 1/237 dead transitions. [2021-03-12 00:05:39,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 237 transitions, 5219 flow [2021-03-12 00:05:39,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:39,805 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:39,805 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:39,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:39,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:39,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:39,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,806 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,806 INFO L185 Difference]: Start difference. First operand has 192 places, 179 transitions, 3998 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:39,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 237 transitions, 5219 flow [2021-03-12 00:05:39,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 237 transitions, 5084 flow, removed 37 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:39,865 INFO L241 Difference]: Finished difference. Result has 202 places, 198 transitions, 4472 flow [2021-03-12 00:05:39,865 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=3917, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4472, PETRI_PLACES=202, PETRI_TRANSITIONS=198} [2021-03-12 00:05:39,865 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 179 predicate places. [2021-03-12 00:05:39,865 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 198 transitions, 4472 flow [2021-03-12 00:05:39,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,866 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:39,866 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:39,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-12 00:05:39,866 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:39,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:39,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2128293181, now seen corresponding path program 33 times [2021-03-12 00:05:39,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:39,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39534410] [2021-03-12 00:05:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:39,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:39,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:39,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:39,883 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:39,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:39,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:39,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:39,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39534410] [2021-03-12 00:05:39,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:39,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:39,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739282473] [2021-03-12 00:05:39,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:39,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:39,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:39,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:39,928 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:39,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 198 transitions, 4472 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:39,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:39,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:39,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:40,272 INFO L129 PetriNetUnfolder]: 486/1006 cut-off events. [2021-03-12 00:05:40,272 INFO L130 PetriNetUnfolder]: For 13281/13313 co-relation queries the response was YES. [2021-03-12 00:05:40,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7126 conditions, 1006 events. 486/1006 cut-off events. For 13281/13313 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6352 event pairs, 83 based on Foata normal form. 2/967 useless extension candidates. Maximal degree in co-relation 7056. Up to 407 conditions per place. [2021-03-12 00:05:40,285 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 170 selfloop transitions, 78 changer transitions 1/255 dead transitions. [2021-03-12 00:05:40,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 255 transitions, 5808 flow [2021-03-12 00:05:40,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:40,286 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:40,286 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:40,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:40,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:40,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:40,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,287 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,287 INFO L185 Difference]: Start difference. First operand has 202 places, 198 transitions, 4472 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:40,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 255 transitions, 5808 flow [2021-03-12 00:05:40,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 255 transitions, 5663 flow, removed 48 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:40,353 INFO L241 Difference]: Finished difference. Result has 212 places, 216 transitions, 5009 flow [2021-03-12 00:05:40,354 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=4390, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5009, PETRI_PLACES=212, PETRI_TRANSITIONS=216} [2021-03-12 00:05:40,354 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 189 predicate places. [2021-03-12 00:05:40,354 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 216 transitions, 5009 flow [2021-03-12 00:05:40,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,354 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:40,354 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:40,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-12 00:05:40,354 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash 41339439, now seen corresponding path program 34 times [2021-03-12 00:05:40,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:40,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510791778] [2021-03-12 00:05:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:40,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:40,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:40,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:40,376 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:40,383 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-12 00:05:40,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:40,393 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:40,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:40,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510791778] [2021-03-12 00:05:40,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:40,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:40,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282474709] [2021-03-12 00:05:40,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:40,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:40,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:40,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:40,420 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:40,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 216 transitions, 5009 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:40,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:40,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:40,714 INFO L129 PetriNetUnfolder]: 529/1168 cut-off events. [2021-03-12 00:05:40,714 INFO L130 PetriNetUnfolder]: For 16388/16453 co-relation queries the response was YES. [2021-03-12 00:05:40,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8220 conditions, 1168 events. 529/1168 cut-off events. For 16388/16453 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8029 event pairs, 86 based on Foata normal form. 13/1140 useless extension candidates. Maximal degree in co-relation 8144. Up to 416 conditions per place. [2021-03-12 00:05:40,726 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 172 selfloop transitions, 109 changer transitions 1/288 dead transitions. [2021-03-12 00:05:40,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 288 transitions, 6604 flow [2021-03-12 00:05:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:40,727 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:40,727 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:40,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:40,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:40,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:40,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,728 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,728 INFO L185 Difference]: Start difference. First operand has 212 places, 216 transitions, 5009 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:40,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 288 transitions, 6604 flow [2021-03-12 00:05:40,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 288 transitions, 6444 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:40,791 INFO L241 Difference]: Finished difference. Result has 222 places, 245 transitions, 5741 flow [2021-03-12 00:05:40,792 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=4900, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5741, PETRI_PLACES=222, PETRI_TRANSITIONS=245} [2021-03-12 00:05:40,792 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 199 predicate places. [2021-03-12 00:05:40,792 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 245 transitions, 5741 flow [2021-03-12 00:05:40,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,792 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:40,792 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:40,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-12 00:05:40,792 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash -67433379, now seen corresponding path program 35 times [2021-03-12 00:05:40,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:40,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76457496] [2021-03-12 00:05:40,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:40,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:40,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:40,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:40,807 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:40,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:40,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:40,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:40,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:40,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:40,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76457496] [2021-03-12 00:05:40,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:40,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:40,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702243610] [2021-03-12 00:05:40,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:40,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:40,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:40,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:40,842 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:40,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 245 transitions, 5741 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:40,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:40,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:40,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:41,091 INFO L129 PetriNetUnfolder]: 529/1167 cut-off events. [2021-03-12 00:05:41,091 INFO L130 PetriNetUnfolder]: For 18241/18273 co-relation queries the response was YES. [2021-03-12 00:05:41,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8670 conditions, 1167 events. 529/1167 cut-off events. For 18241/18273 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7992 event pairs, 73 based on Foata normal form. 2/1128 useless extension candidates. Maximal degree in co-relation 8589. Up to 416 conditions per place. [2021-03-12 00:05:41,102 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 208 selfloop transitions, 86 changer transitions 1/301 dead transitions. [2021-03-12 00:05:41,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 301 transitions, 7118 flow [2021-03-12 00:05:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:41,116 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:41,116 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:41,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,117 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,117 INFO L185 Difference]: Start difference. First operand has 222 places, 245 transitions, 5741 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:41,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 301 transitions, 7118 flow [2021-03-12 00:05:41,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 301 transitions, 7084 flow, removed 17 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:41,219 INFO L241 Difference]: Finished difference. Result has 232 places, 257 transitions, 6196 flow [2021-03-12 00:05:41,219 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=5719, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6196, PETRI_PLACES=232, PETRI_TRANSITIONS=257} [2021-03-12 00:05:41,219 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 209 predicate places. [2021-03-12 00:05:41,219 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 257 transitions, 6196 flow [2021-03-12 00:05:41,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,220 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:41,220 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:41,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-12 00:05:41,220 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:41,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:41,221 INFO L82 PathProgramCache]: Analyzing trace with hash 635061911, now seen corresponding path program 36 times [2021-03-12 00:05:41,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:41,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370265925] [2021-03-12 00:05:41,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:41,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:41,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:41,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:41,249 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:41,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:41,260 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:41,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:41,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:41,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370265925] [2021-03-12 00:05:41,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:41,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:41,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434299547] [2021-03-12 00:05:41,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:41,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:41,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:41,298 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:41,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 257 transitions, 6196 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:41,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:41,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:41,651 INFO L129 PetriNetUnfolder]: 529/1164 cut-off events. [2021-03-12 00:05:41,651 INFO L130 PetriNetUnfolder]: For 19795/19827 co-relation queries the response was YES. [2021-03-12 00:05:41,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9010 conditions, 1164 events. 529/1164 cut-off events. For 19795/19827 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7960 event pairs, 75 based on Foata normal form. 2/1125 useless extension candidates. Maximal degree in co-relation 8924. Up to 416 conditions per place. [2021-03-12 00:05:41,661 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 175 selfloop transitions, 101 changer transitions 1/283 dead transitions. [2021-03-12 00:05:41,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 283 transitions, 7049 flow [2021-03-12 00:05:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:41,662 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:41,662 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:41,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:41,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,663 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,664 INFO L185 Difference]: Start difference. First operand has 232 places, 257 transitions, 6196 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:41,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 283 transitions, 7049 flow [2021-03-12 00:05:41,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 283 transitions, 6879 flow, removed 22 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:41,797 INFO L241 Difference]: Finished difference. Result has 238 places, 260 transitions, 6300 flow [2021-03-12 00:05:41,797 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=6034, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6300, PETRI_PLACES=238, PETRI_TRANSITIONS=260} [2021-03-12 00:05:41,797 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 215 predicate places. [2021-03-12 00:05:41,797 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 260 transitions, 6300 flow [2021-03-12 00:05:41,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,797 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:41,797 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:41,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-12 00:05:41,797 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:41,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:41,798 INFO L82 PathProgramCache]: Analyzing trace with hash 90210987, now seen corresponding path program 37 times [2021-03-12 00:05:41,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:41,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245396591] [2021-03-12 00:05:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:41,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:41,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:41,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:41,816 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:41,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:41,822 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-12 00:05:41,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:41,830 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:41,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:41,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:41,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:41,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:41,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245396591] [2021-03-12 00:05:41,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:41,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:41,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898415217] [2021-03-12 00:05:41,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:41,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:41,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:41,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:41,854 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:41,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 260 transitions, 6300 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:41,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:41,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:41,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:42,116 INFO L129 PetriNetUnfolder]: 529/1173 cut-off events. [2021-03-12 00:05:42,117 INFO L130 PetriNetUnfolder]: For 20199/20231 co-relation queries the response was YES. [2021-03-12 00:05:42,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9072 conditions, 1173 events. 529/1173 cut-off events. For 20199/20231 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8131 event pairs, 63 based on Foata normal form. 2/1134 useless extension candidates. Maximal degree in co-relation 8984. Up to 416 conditions per place. [2021-03-12 00:05:42,127 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 197 selfloop transitions, 105 changer transitions 1/309 dead transitions. [2021-03-12 00:05:42,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 309 transitions, 7653 flow [2021-03-12 00:05:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:42,128 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:42,128 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:42,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:42,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:42,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:42,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,129 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,129 INFO L185 Difference]: Start difference. First operand has 238 places, 260 transitions, 6300 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:42,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 309 transitions, 7653 flow [2021-03-12 00:05:42,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 309 transitions, 7450 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:42,208 INFO L241 Difference]: Finished difference. Result has 245 places, 275 transitions, 6715 flow [2021-03-12 00:05:42,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=6120, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6715, PETRI_PLACES=245, PETRI_TRANSITIONS=275} [2021-03-12 00:05:42,208 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 222 predicate places. [2021-03-12 00:05:42,208 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 275 transitions, 6715 flow [2021-03-12 00:05:42,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,208 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:42,208 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:42,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-12 00:05:42,208 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:42,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1368564149, now seen corresponding path program 38 times [2021-03-12 00:05:42,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:42,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56784118] [2021-03-12 00:05:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:42,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:42,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:42,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:42,225 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:42,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:42,237 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:42,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:42,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:42,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:42,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56784118] [2021-03-12 00:05:42,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:42,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:42,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22785413] [2021-03-12 00:05:42,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:42,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:42,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:42,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:42,271 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:42,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 275 transitions, 6715 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:42,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:42,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:42,659 INFO L129 PetriNetUnfolder]: 529/1162 cut-off events. [2021-03-12 00:05:42,659 INFO L130 PetriNetUnfolder]: For 21560/21592 co-relation queries the response was YES. [2021-03-12 00:05:42,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9271 conditions, 1162 events. 529/1162 cut-off events. For 21560/21592 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7937 event pairs, 72 based on Foata normal form. 2/1123 useless extension candidates. Maximal degree in co-relation 9179. Up to 416 conditions per place. [2021-03-12 00:05:42,671 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 188 selfloop transitions, 102 changer transitions 1/297 dead transitions. [2021-03-12 00:05:42,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 297 transitions, 7564 flow [2021-03-12 00:05:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:42,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:42,672 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:42,672 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:42,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:42,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:42,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:42,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,673 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,673 INFO L185 Difference]: Start difference. First operand has 245 places, 275 transitions, 6715 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:42,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 297 transitions, 7564 flow [2021-03-12 00:05:42,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 297 transitions, 7399 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:42,758 INFO L241 Difference]: Finished difference. Result has 250 places, 275 transitions, 6777 flow [2021-03-12 00:05:42,759 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=6557, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6777, PETRI_PLACES=250, PETRI_TRANSITIONS=275} [2021-03-12 00:05:42,759 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 227 predicate places. [2021-03-12 00:05:42,759 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 275 transitions, 6777 flow [2021-03-12 00:05:42,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,759 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:42,759 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:42,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-12 00:05:42,759 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:42,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:42,759 INFO L82 PathProgramCache]: Analyzing trace with hash -832401241, now seen corresponding path program 39 times [2021-03-12 00:05:42,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:42,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366316724] [2021-03-12 00:05:42,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:42,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:42,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:42,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:42,780 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:42,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:42,786 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-03-12 00:05:42,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:42,795 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:42,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:42,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:42,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:42,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366316724] [2021-03-12 00:05:42,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:42,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:42,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372294117] [2021-03-12 00:05:42,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:42,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:42,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:42,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:42,822 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:42,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 275 transitions, 6777 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:42,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:42,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:42,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:43,079 INFO L129 PetriNetUnfolder]: 529/1158 cut-off events. [2021-03-12 00:05:43,079 INFO L130 PetriNetUnfolder]: For 22009/22041 co-relation queries the response was YES. [2021-03-12 00:05:43,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9344 conditions, 1158 events. 529/1158 cut-off events. For 22009/22041 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7886 event pairs, 73 based on Foata normal form. 2/1119 useless extension candidates. Maximal degree in co-relation 9251. Up to 416 conditions per place. [2021-03-12 00:05:43,091 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 180 selfloop transitions, 135 changer transitions 1/322 dead transitions. [2021-03-12 00:05:43,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 322 transitions, 8193 flow [2021-03-12 00:05:43,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:43,092 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:43,092 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:43,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,093 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,093 INFO L185 Difference]: Start difference. First operand has 250 places, 275 transitions, 6777 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:43,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 322 transitions, 8193 flow [2021-03-12 00:05:43,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 322 transitions, 7977 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:43,186 INFO L241 Difference]: Finished difference. Result has 257 places, 287 transitions, 7232 flow [2021-03-12 00:05:43,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=6605, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7232, PETRI_PLACES=257, PETRI_TRANSITIONS=287} [2021-03-12 00:05:43,186 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 234 predicate places. [2021-03-12 00:05:43,186 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 287 transitions, 7232 flow [2021-03-12 00:05:43,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,186 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:43,186 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:43,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-12 00:05:43,186 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:43,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:43,187 INFO L82 PathProgramCache]: Analyzing trace with hash -486937845, now seen corresponding path program 40 times [2021-03-12 00:05:43,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:43,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482500849] [2021-03-12 00:05:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:43,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:43,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:43,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:43,208 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:43,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:43,213 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:43,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:43,221 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:43,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:43,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:43,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482500849] [2021-03-12 00:05:43,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:43,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:43,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461400791] [2021-03-12 00:05:43,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:43,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:43,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:43,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:43,245 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:43,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 287 transitions, 7232 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:43,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:43,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:43,543 INFO L129 PetriNetUnfolder]: 529/1161 cut-off events. [2021-03-12 00:05:43,543 INFO L130 PetriNetUnfolder]: For 22823/22855 co-relation queries the response was YES. [2021-03-12 00:05:43,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9616 conditions, 1161 events. 529/1161 cut-off events. For 22823/22855 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7931 event pairs, 62 based on Foata normal form. 2/1122 useless extension candidates. Maximal degree in co-relation 9519. Up to 416 conditions per place. [2021-03-12 00:05:43,553 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 199 selfloop transitions, 112 changer transitions 1/318 dead transitions. [2021-03-12 00:05:43,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 318 transitions, 8303 flow [2021-03-12 00:05:43,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:43,554 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:43,554 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:43,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:43,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,555 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,555 INFO L185 Difference]: Start difference. First operand has 257 places, 287 transitions, 7232 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:43,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 318 transitions, 8303 flow [2021-03-12 00:05:43,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 318 transitions, 8099 flow, removed 27 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:43,638 INFO L241 Difference]: Finished difference. Result has 264 places, 291 transitions, 7423 flow [2021-03-12 00:05:43,638 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7042, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7423, PETRI_PLACES=264, PETRI_TRANSITIONS=291} [2021-03-12 00:05:43,638 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 241 predicate places. [2021-03-12 00:05:43,638 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 291 transitions, 7423 flow [2021-03-12 00:05:43,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,638 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:43,638 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:43,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-12 00:05:43,639 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1783822293, now seen corresponding path program 41 times [2021-03-12 00:05:43,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:43,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952903302] [2021-03-12 00:05:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:43,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:43,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:43,660 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:43,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:43,666 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:43,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:43,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:43,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:43,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:43,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952903302] [2021-03-12 00:05:43,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:43,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:43,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016303930] [2021-03-12 00:05:43,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:43,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:43,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:43,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:43,697 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:43,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 291 transitions, 7423 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:43,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:43,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:43,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:43,997 INFO L129 PetriNetUnfolder]: 529/1153 cut-off events. [2021-03-12 00:05:43,998 INFO L130 PetriNetUnfolder]: For 23263/23343 co-relation queries the response was YES. [2021-03-12 00:05:44,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9588 conditions, 1153 events. 529/1153 cut-off events. For 23263/23343 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7843 event pairs, 62 based on Foata normal form. 17/1129 useless extension candidates. Maximal degree in co-relation 9488. Up to 416 conditions per place. [2021-03-12 00:05:44,009 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 198 selfloop transitions, 111 changer transitions 1/316 dead transitions. [2021-03-12 00:05:44,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 316 transitions, 8343 flow [2021-03-12 00:05:44,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:05:44,010 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:05:44,010 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:05:44,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:05:44,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:44,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:05:44,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,011 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,012 INFO L185 Difference]: Start difference. First operand has 264 places, 291 transitions, 7423 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:05:44,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 316 transitions, 8343 flow [2021-03-12 00:05:44,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 316 transitions, 8210 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:44,113 INFO L241 Difference]: Finished difference. Result has 269 places, 291 transitions, 7539 flow [2021-03-12 00:05:44,113 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7294, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7539, PETRI_PLACES=269, PETRI_TRANSITIONS=291} [2021-03-12 00:05:44,113 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 246 predicate places. [2021-03-12 00:05:44,113 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 291 transitions, 7539 flow [2021-03-12 00:05:44,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,114 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:44,114 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:44,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-12 00:05:44,114 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:44,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:44,114 INFO L82 PathProgramCache]: Analyzing trace with hash -894791671, now seen corresponding path program 42 times [2021-03-12 00:05:44,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:44,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223186151] [2021-03-12 00:05:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:44,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:44,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:44,129 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:44,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:44,134 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:44,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:44,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:44,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223186151] [2021-03-12 00:05:44,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:44,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:44,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782551244] [2021-03-12 00:05:44,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:44,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:44,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:44,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:44,161 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:44,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 291 transitions, 7539 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:44,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:44,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:44,520 INFO L129 PetriNetUnfolder]: 529/1147 cut-off events. [2021-03-12 00:05:44,520 INFO L130 PetriNetUnfolder]: For 24020/24052 co-relation queries the response was YES. [2021-03-12 00:05:44,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9635 conditions, 1147 events. 529/1147 cut-off events. For 24020/24052 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7729 event pairs, 71 based on Foata normal form. 2/1108 useless extension candidates. Maximal degree in co-relation 9534. Up to 416 conditions per place. [2021-03-12 00:05:44,532 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 215 selfloop transitions, 106 changer transitions 1/328 dead transitions. [2021-03-12 00:05:44,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 328 transitions, 8712 flow [2021-03-12 00:05:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:44,535 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:44,535 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:44,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:44,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:44,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:44,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,536 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,536 INFO L185 Difference]: Start difference. First operand has 269 places, 291 transitions, 7539 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:44,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 328 transitions, 8712 flow [2021-03-12 00:05:44,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 328 transitions, 8473 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:44,630 INFO L241 Difference]: Finished difference. Result has 274 places, 298 transitions, 7750 flow [2021-03-12 00:05:44,630 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7314, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7750, PETRI_PLACES=274, PETRI_TRANSITIONS=298} [2021-03-12 00:05:44,630 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 251 predicate places. [2021-03-12 00:05:44,630 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 298 transitions, 7750 flow [2021-03-12 00:05:44,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:44,631 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:44,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-12 00:05:44,631 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:44,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:44,631 INFO L82 PathProgramCache]: Analyzing trace with hash 405236861, now seen corresponding path program 43 times [2021-03-12 00:05:44,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:44,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560468759] [2021-03-12 00:05:44,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:44,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:44,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:44,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:44,648 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:44,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:44,654 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:44,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:44,661 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:44,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:44,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:44,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:44,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560468759] [2021-03-12 00:05:44,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:44,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:44,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573007078] [2021-03-12 00:05:44,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:44,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:44,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:44,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:44,684 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:44,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 298 transitions, 7750 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:44,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:44,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:44,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:45,022 INFO L129 PetriNetUnfolder]: 529/1150 cut-off events. [2021-03-12 00:05:45,022 INFO L130 PetriNetUnfolder]: For 24004/24036 co-relation queries the response was YES. [2021-03-12 00:05:45,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9627 conditions, 1150 events. 529/1150 cut-off events. For 24004/24036 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7800 event pairs, 62 based on Foata normal form. 2/1111 useless extension candidates. Maximal degree in co-relation 9523. Up to 416 conditions per place. [2021-03-12 00:05:45,036 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 214 selfloop transitions, 106 changer transitions 1/327 dead transitions. [2021-03-12 00:05:45,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 327 transitions, 8699 flow [2021-03-12 00:05:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:45,036 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:45,037 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:45,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:45,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:45,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:45,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,039 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,039 INFO L185 Difference]: Start difference. First operand has 274 places, 298 transitions, 7750 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:45,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 327 transitions, 8699 flow [2021-03-12 00:05:45,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 327 transitions, 8506 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:45,132 INFO L241 Difference]: Finished difference. Result has 278 places, 298 transitions, 7784 flow [2021-03-12 00:05:45,132 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7563, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7784, PETRI_PLACES=278, PETRI_TRANSITIONS=298} [2021-03-12 00:05:45,133 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 255 predicate places. [2021-03-12 00:05:45,133 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 298 transitions, 7784 flow [2021-03-12 00:05:45,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,133 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:45,133 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:45,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-12 00:05:45,133 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:45,133 INFO L82 PathProgramCache]: Analyzing trace with hash 112563409, now seen corresponding path program 44 times [2021-03-12 00:05:45,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:45,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856777802] [2021-03-12 00:05:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:45,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:45,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:45,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:45,147 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:45,153 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:45,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:45,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:45,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:45,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856777802] [2021-03-12 00:05:45,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:45,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:45,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160678292] [2021-03-12 00:05:45,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:45,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:45,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:45,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:45,179 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:45,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 298 transitions, 7784 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:45,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:45,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:45,476 INFO L129 PetriNetUnfolder]: 532/1148 cut-off events. [2021-03-12 00:05:45,476 INFO L130 PetriNetUnfolder]: For 25035/25115 co-relation queries the response was YES. [2021-03-12 00:05:45,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9755 conditions, 1148 events. 532/1148 cut-off events. For 25035/25115 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7717 event pairs, 77 based on Foata normal form. 17/1124 useless extension candidates. Maximal degree in co-relation 9650. Up to 418 conditions per place. [2021-03-12 00:05:45,488 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 181 selfloop transitions, 146 changer transitions 1/334 dead transitions. [2021-03-12 00:05:45,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 334 transitions, 9044 flow [2021-03-12 00:05:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:45,489 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:45,489 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:45,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,489 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,490 INFO L185 Difference]: Start difference. First operand has 278 places, 298 transitions, 7784 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:45,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 334 transitions, 9044 flow [2021-03-12 00:05:45,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 334 transitions, 8802 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:45,606 INFO L241 Difference]: Finished difference. Result has 282 places, 305 transitions, 8058 flow [2021-03-12 00:05:45,606 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7563, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8058, PETRI_PLACES=282, PETRI_TRANSITIONS=305} [2021-03-12 00:05:45,607 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 259 predicate places. [2021-03-12 00:05:45,607 INFO L480 AbstractCegarLoop]: Abstraction has has 282 places, 305 transitions, 8058 flow [2021-03-12 00:05:45,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,607 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:45,607 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:45,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-12 00:05:45,607 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:45,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash -867086041, now seen corresponding path program 45 times [2021-03-12 00:05:45,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:45,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250444061] [2021-03-12 00:05:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:45,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:45,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:45,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:45,622 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:45,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:45,627 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:45,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:45,634 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:45,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:45,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:45,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:45,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250444061] [2021-03-12 00:05:45,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:45,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:45,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676237163] [2021-03-12 00:05:45,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:45,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:45,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:45,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:45,658 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:45,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 305 transitions, 8058 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:45,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:45,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:45,977 INFO L129 PetriNetUnfolder]: 532/1150 cut-off events. [2021-03-12 00:05:45,977 INFO L130 PetriNetUnfolder]: For 24664/24696 co-relation queries the response was YES. [2021-03-12 00:05:45,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9790 conditions, 1150 events. 532/1150 cut-off events. For 24664/24696 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7728 event pairs, 73 based on Foata normal form. 2/1111 useless extension candidates. Maximal degree in co-relation 9684. Up to 418 conditions per place. [2021-03-12 00:05:45,988 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 215 selfloop transitions, 110 changer transitions 1/332 dead transitions. [2021-03-12 00:05:45,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 332 transitions, 9021 flow [2021-03-12 00:05:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:45,991 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:45,991 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:45,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:45,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,992 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:45,992 INFO L185 Difference]: Start difference. First operand has 282 places, 305 transitions, 8058 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:45,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 332 transitions, 9021 flow [2021-03-12 00:05:46,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 332 transitions, 8862 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:46,114 INFO L241 Difference]: Finished difference. Result has 286 places, 304 transitions, 8104 flow [2021-03-12 00:05:46,115 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7911, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8104, PETRI_PLACES=286, PETRI_TRANSITIONS=304} [2021-03-12 00:05:46,115 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 263 predicate places. [2021-03-12 00:05:46,115 INFO L480 AbstractCegarLoop]: Abstraction has has 286 places, 304 transitions, 8104 flow [2021-03-12 00:05:46,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,115 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:46,115 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:46,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-12 00:05:46,115 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:46,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1875555973, now seen corresponding path program 46 times [2021-03-12 00:05:46,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:46,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920795558] [2021-03-12 00:05:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:46,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:46,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:46,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:46,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:46,136 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:46,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:46,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:46,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:46,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920795558] [2021-03-12 00:05:46,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:46,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:46,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769349332] [2021-03-12 00:05:46,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:46,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:46,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:46,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:46,166 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:46,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 304 transitions, 8104 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:46,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:46,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:46,562 INFO L129 PetriNetUnfolder]: 532/1141 cut-off events. [2021-03-12 00:05:46,563 INFO L130 PetriNetUnfolder]: For 25361/25393 co-relation queries the response was YES. [2021-03-12 00:05:46,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9872 conditions, 1141 events. 532/1141 cut-off events. For 25361/25393 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7619 event pairs, 76 based on Foata normal form. 2/1102 useless extension candidates. Maximal degree in co-relation 9766. Up to 418 conditions per place. [2021-03-12 00:05:46,575 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 197 selfloop transitions, 129 changer transitions 1/333 dead transitions. [2021-03-12 00:05:46,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 333 transitions, 9175 flow [2021-03-12 00:05:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:46,576 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:46,576 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:46,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:46,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:46,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:46,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,577 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,577 INFO L185 Difference]: Start difference. First operand has 286 places, 304 transitions, 8104 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:46,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 333 transitions, 9175 flow [2021-03-12 00:05:46,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 333 transitions, 8922 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:46,682 INFO L241 Difference]: Finished difference. Result has 288 places, 309 transitions, 8217 flow [2021-03-12 00:05:46,682 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=7879, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8217, PETRI_PLACES=288, PETRI_TRANSITIONS=309} [2021-03-12 00:05:46,682 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 265 predicate places. [2021-03-12 00:05:46,682 INFO L480 AbstractCegarLoop]: Abstraction has has 288 places, 309 transitions, 8217 flow [2021-03-12 00:05:46,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,682 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:46,683 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:46,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-12 00:05:46,683 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:46,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:46,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1986378493, now seen corresponding path program 47 times [2021-03-12 00:05:46,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:46,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649959617] [2021-03-12 00:05:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:46,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:46,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:46,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:46,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:46,710 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:46,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:46,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:46,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:46,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:46,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649959617] [2021-03-12 00:05:46,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:46,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:46,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384028657] [2021-03-12 00:05:46,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:46,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:46,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:46,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:46,739 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:46,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 309 transitions, 8217 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:46,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:46,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:46,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:47,058 INFO L129 PetriNetUnfolder]: 532/1137 cut-off events. [2021-03-12 00:05:47,059 INFO L130 PetriNetUnfolder]: For 25311/25343 co-relation queries the response was YES. [2021-03-12 00:05:47,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9851 conditions, 1137 events. 532/1137 cut-off events. For 25311/25343 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7578 event pairs, 76 based on Foata normal form. 2/1098 useless extension candidates. Maximal degree in co-relation 9745. Up to 418 conditions per place. [2021-03-12 00:05:47,071 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 198 selfloop transitions, 129 changer transitions 1/334 dead transitions. [2021-03-12 00:05:47,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 334 transitions, 9222 flow [2021-03-12 00:05:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:47,071 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:47,071 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:47,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:47,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:47,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:47,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,072 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,072 INFO L185 Difference]: Start difference. First operand has 288 places, 309 transitions, 8217 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:47,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 334 transitions, 9222 flow [2021-03-12 00:05:47,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 334 transitions, 9049 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:47,209 INFO L241 Difference]: Finished difference. Result has 294 places, 312 transitions, 8421 flow [2021-03-12 00:05:47,209 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8056, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8421, PETRI_PLACES=294, PETRI_TRANSITIONS=312} [2021-03-12 00:05:47,209 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 271 predicate places. [2021-03-12 00:05:47,210 INFO L480 AbstractCegarLoop]: Abstraction has has 294 places, 312 transitions, 8421 flow [2021-03-12 00:05:47,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,210 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:47,210 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:47,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-12 00:05:47,210 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:47,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:47,210 INFO L82 PathProgramCache]: Analyzing trace with hash -886914343, now seen corresponding path program 48 times [2021-03-12 00:05:47,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:47,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559155382] [2021-03-12 00:05:47,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:47,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:47,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:47,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:47,224 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:47,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:47,230 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:47,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:47,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:47,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:47,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559155382] [2021-03-12 00:05:47,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:47,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:47,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658105205] [2021-03-12 00:05:47,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:47,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:47,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:47,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:47,262 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:47,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 312 transitions, 8421 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:47,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:47,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:47,628 INFO L129 PetriNetUnfolder]: 532/1144 cut-off events. [2021-03-12 00:05:47,629 INFO L130 PetriNetUnfolder]: For 25711/25743 co-relation queries the response was YES. [2021-03-12 00:05:47,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 1144 events. 532/1144 cut-off events. For 25711/25743 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 7679 event pairs, 62 based on Foata normal form. 2/1105 useless extension candidates. Maximal degree in co-relation 9795. Up to 418 conditions per place. [2021-03-12 00:05:47,640 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 218 selfloop transitions, 114 changer transitions 1/339 dead transitions. [2021-03-12 00:05:47,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 339 transitions, 9373 flow [2021-03-12 00:05:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:05:47,641 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:05:47,641 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:05:47,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:05:47,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:47,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:05:47,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,642 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,642 INFO L185 Difference]: Start difference. First operand has 294 places, 312 transitions, 8421 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:05:47,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 339 transitions, 9373 flow [2021-03-12 00:05:47,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 339 transitions, 9210 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:47,747 INFO L241 Difference]: Finished difference. Result has 298 places, 311 transitions, 8465 flow [2021-03-12 00:05:47,747 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8262, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8465, PETRI_PLACES=298, PETRI_TRANSITIONS=311} [2021-03-12 00:05:47,748 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 275 predicate places. [2021-03-12 00:05:47,748 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 311 transitions, 8465 flow [2021-03-12 00:05:47,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,748 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:47,748 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:47,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-12 00:05:47,748 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:47,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:47,748 INFO L82 PathProgramCache]: Analyzing trace with hash -268034787, now seen corresponding path program 49 times [2021-03-12 00:05:47,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:47,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588227391] [2021-03-12 00:05:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:47,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:47,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:47,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:47,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:47,770 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:47,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:47,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:47,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:47,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:47,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:47,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588227391] [2021-03-12 00:05:47,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:47,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:47,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223999777] [2021-03-12 00:05:47,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:47,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:47,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:47,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:47,797 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:47,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 311 transitions, 8465 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:47,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:47,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:47,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:48,105 INFO L129 PetriNetUnfolder]: 532/1129 cut-off events. [2021-03-12 00:05:48,105 INFO L130 PetriNetUnfolder]: For 26381/26456 co-relation queries the response was YES. [2021-03-12 00:05:48,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9936 conditions, 1129 events. 532/1129 cut-off events. For 26381/26456 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7478 event pairs, 76 based on Foata normal form. 17/1105 useless extension candidates. Maximal degree in co-relation 9828. Up to 418 conditions per place. [2021-03-12 00:05:48,117 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 197 selfloop transitions, 128 changer transitions 1/332 dead transitions. [2021-03-12 00:05:48,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 332 transitions, 9360 flow [2021-03-12 00:05:48,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:48,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:48,118 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:48,118 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:48,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:48,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:48,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:48,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,119 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,119 INFO L185 Difference]: Start difference. First operand has 298 places, 311 transitions, 8465 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:48,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 332 transitions, 9360 flow [2021-03-12 00:05:48,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 332 transitions, 9127 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:48,224 INFO L241 Difference]: Finished difference. Result has 301 places, 312 transitions, 8560 flow [2021-03-12 00:05:48,224 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8244, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8560, PETRI_PLACES=301, PETRI_TRANSITIONS=312} [2021-03-12 00:05:48,225 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 278 predicate places. [2021-03-12 00:05:48,225 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 312 transitions, 8560 flow [2021-03-12 00:05:48,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:48,225 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:48,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-12 00:05:48,225 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:48,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:48,225 INFO L82 PathProgramCache]: Analyzing trace with hash -240329157, now seen corresponding path program 50 times [2021-03-12 00:05:48,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:48,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099466936] [2021-03-12 00:05:48,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:48,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:48,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:48,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:48,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:48,246 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:48,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:48,254 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:48,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:48,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:48,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099466936] [2021-03-12 00:05:48,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:48,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:48,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837137535] [2021-03-12 00:05:48,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:48,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:48,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:48,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:48,276 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:48,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 312 transitions, 8560 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:48,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:48,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:48,576 INFO L129 PetriNetUnfolder]: 532/1128 cut-off events. [2021-03-12 00:05:48,577 INFO L130 PetriNetUnfolder]: For 26241/26273 co-relation queries the response was YES. [2021-03-12 00:05:48,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9935 conditions, 1128 events. 532/1128 cut-off events. For 26241/26273 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7435 event pairs, 77 based on Foata normal form. 2/1089 useless extension candidates. Maximal degree in co-relation 9826. Up to 418 conditions per place. [2021-03-12 00:05:48,589 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 197 selfloop transitions, 128 changer transitions 1/332 dead transitions. [2021-03-12 00:05:48,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 332 transitions, 9462 flow [2021-03-12 00:05:48,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:48,590 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:48,590 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:48,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:48,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:48,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:48,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,591 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,591 INFO L185 Difference]: Start difference. First operand has 301 places, 312 transitions, 8560 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:48,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 332 transitions, 9462 flow [2021-03-12 00:05:48,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 332 transitions, 9286 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:48,702 INFO L241 Difference]: Finished difference. Result has 304 places, 313 transitions, 8680 flow [2021-03-12 00:05:48,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8393, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8680, PETRI_PLACES=304, PETRI_TRANSITIONS=313} [2021-03-12 00:05:48,702 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 281 predicate places. [2021-03-12 00:05:48,702 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 313 transitions, 8680 flow [2021-03-12 00:05:48,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:48,702 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:48,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-12 00:05:48,703 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:48,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:48,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1016681443, now seen corresponding path program 51 times [2021-03-12 00:05:48,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:48,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954150161] [2021-03-12 00:05:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:48,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:48,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:48,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:48,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:48,736 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:48,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:48,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:48,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:48,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954150161] [2021-03-12 00:05:48,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:48,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:48,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782220865] [2021-03-12 00:05:48,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:48,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:48,770 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:48,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 313 transitions, 8680 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:48,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:48,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:48,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:49,191 INFO L129 PetriNetUnfolder]: 532/1123 cut-off events. [2021-03-12 00:05:49,191 INFO L130 PetriNetUnfolder]: For 26598/26630 co-relation queries the response was YES. [2021-03-12 00:05:49,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9949 conditions, 1123 events. 532/1123 cut-off events. For 26598/26630 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7365 event pairs, 77 based on Foata normal form. 2/1084 useless extension candidates. Maximal degree in co-relation 9841. Up to 418 conditions per place. [2021-03-12 00:05:49,210 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 194 selfloop transitions, 130 changer transitions 1/331 dead transitions. [2021-03-12 00:05:49,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 331 transitions, 9519 flow [2021-03-12 00:05:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:49,213 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:49,213 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:49,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:49,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:49,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:49,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,214 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,214 INFO L185 Difference]: Start difference. First operand has 304 places, 313 transitions, 8680 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:49,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 331 transitions, 9519 flow [2021-03-12 00:05:49,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 331 transitions, 9208 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:49,388 INFO L241 Difference]: Finished difference. Result has 305 places, 312 transitions, 8602 flow [2021-03-12 00:05:49,388 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8375, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8602, PETRI_PLACES=305, PETRI_TRANSITIONS=312} [2021-03-12 00:05:49,388 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 282 predicate places. [2021-03-12 00:05:49,389 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 312 transitions, 8602 flow [2021-03-12 00:05:49,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,389 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:49,389 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:49,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-12 00:05:49,389 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1099798333, now seen corresponding path program 52 times [2021-03-12 00:05:49,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:49,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196117505] [2021-03-12 00:05:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:49,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:49,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:49,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:49,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:49,432 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:49,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:49,440 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:49,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:49,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:49,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196117505] [2021-03-12 00:05:49,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:49,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:49,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887485018] [2021-03-12 00:05:49,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:49,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:49,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:49,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:49,465 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:49,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 312 transitions, 8602 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:49,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:49,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:49,776 INFO L129 PetriNetUnfolder]: 532/1119 cut-off events. [2021-03-12 00:05:49,776 INFO L130 PetriNetUnfolder]: For 26141/26173 co-relation queries the response was YES. [2021-03-12 00:05:49,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9895 conditions, 1119 events. 532/1119 cut-off events. For 26141/26173 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7311 event pairs, 76 based on Foata normal form. 2/1080 useless extension candidates. Maximal degree in co-relation 9787. Up to 418 conditions per place. [2021-03-12 00:05:49,787 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 193 selfloop transitions, 129 changer transitions 1/329 dead transitions. [2021-03-12 00:05:49,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 329 transitions, 9433 flow [2021-03-12 00:05:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:49,788 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:49,788 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:49,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:49,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:49,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:49,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,789 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,789 INFO L185 Difference]: Start difference. First operand has 305 places, 312 transitions, 8602 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:49,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 329 transitions, 9433 flow [2021-03-12 00:05:49,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 329 transitions, 9214 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:49,891 INFO L241 Difference]: Finished difference. Result has 307 places, 311 transitions, 8610 flow [2021-03-12 00:05:49,891 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8387, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8610, PETRI_PLACES=307, PETRI_TRANSITIONS=311} [2021-03-12 00:05:49,891 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 284 predicate places. [2021-03-12 00:05:49,891 INFO L480 AbstractCegarLoop]: Abstraction has has 307 places, 311 transitions, 8610 flow [2021-03-12 00:05:49,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,892 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:49,892 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:49,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-12 00:05:49,892 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:49,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1933780873, now seen corresponding path program 53 times [2021-03-12 00:05:49,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:49,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585481391] [2021-03-12 00:05:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:49,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:49,922 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:49,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:49,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:49,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:49,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585481391] [2021-03-12 00:05:49,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:49,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:49,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759057249] [2021-03-12 00:05:49,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:49,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:49,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:49,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:49,950 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:49,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 311 transitions, 8610 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:49,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:49,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:49,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:50,280 INFO L129 PetriNetUnfolder]: 532/1117 cut-off events. [2021-03-12 00:05:50,281 INFO L130 PetriNetUnfolder]: For 26168/26200 co-relation queries the response was YES. [2021-03-12 00:05:50,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9881 conditions, 1117 events. 532/1117 cut-off events. For 26168/26200 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7272 event pairs, 78 based on Foata normal form. 2/1078 useless extension candidates. Maximal degree in co-relation 9774. Up to 418 conditions per place. [2021-03-12 00:05:50,291 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 186 selfloop transitions, 150 changer transitions 1/343 dead transitions. [2021-03-12 00:05:50,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 343 transitions, 9841 flow [2021-03-12 00:05:50,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:50,292 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:50,292 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:50,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,292 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,292 INFO L185 Difference]: Start difference. First operand has 307 places, 311 transitions, 8610 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:50,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 343 transitions, 9841 flow [2021-03-12 00:05:50,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 343 transitions, 9606 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:50,422 INFO L241 Difference]: Finished difference. Result has 312 places, 323 transitions, 9064 flow [2021-03-12 00:05:50,422 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8399, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9064, PETRI_PLACES=312, PETRI_TRANSITIONS=323} [2021-03-12 00:05:50,422 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 289 predicate places. [2021-03-12 00:05:50,422 INFO L480 AbstractCegarLoop]: Abstraction has has 312 places, 323 transitions, 9064 flow [2021-03-12 00:05:50,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,422 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:50,423 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:50,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-12 00:05:50,423 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:50,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:50,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1850663983, now seen corresponding path program 54 times [2021-03-12 00:05:50,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:50,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422963217] [2021-03-12 00:05:50,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:50,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:50,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:50,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:50,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:50,442 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:50,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:50,449 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:50,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:50,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:50,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422963217] [2021-03-12 00:05:50,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:50,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:50,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548637524] [2021-03-12 00:05:50,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:50,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:50,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:50,471 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:50,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 323 transitions, 9064 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:50,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:50,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:50,836 INFO L129 PetriNetUnfolder]: 532/1113 cut-off events. [2021-03-12 00:05:50,836 INFO L130 PetriNetUnfolder]: For 26625/26657 co-relation queries the response was YES. [2021-03-12 00:05:50,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9954 conditions, 1113 events. 532/1113 cut-off events. For 26625/26657 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7215 event pairs, 77 based on Foata normal form. 2/1074 useless extension candidates. Maximal degree in co-relation 9845. Up to 418 conditions per place. [2021-03-12 00:05:50,848 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 187 selfloop transitions, 150 changer transitions 1/344 dead transitions. [2021-03-12 00:05:50,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 10015 flow [2021-03-12 00:05:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:50,849 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:50,849 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:50,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:50,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,850 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,850 INFO L185 Difference]: Start difference. First operand has 312 places, 323 transitions, 9064 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:50,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 10015 flow [2021-03-12 00:05:50,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 344 transitions, 9662 flow, removed 30 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:50,970 INFO L241 Difference]: Finished difference. Result has 316 places, 325 transitions, 9098 flow [2021-03-12 00:05:50,971 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8725, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9098, PETRI_PLACES=316, PETRI_TRANSITIONS=325} [2021-03-12 00:05:50,971 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 293 predicate places. [2021-03-12 00:05:50,971 INFO L480 AbstractCegarLoop]: Abstraction has has 316 places, 325 transitions, 9098 flow [2021-03-12 00:05:50,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:50,971 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:50,971 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:50,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-12 00:05:50,972 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:50,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1682044947, now seen corresponding path program 55 times [2021-03-12 00:05:50,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:50,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015813635] [2021-03-12 00:05:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:50,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:50,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:50,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:50,995 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:50,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:51,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:51,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:51,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015813635] [2021-03-12 00:05:51,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:51,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:51,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049417038] [2021-03-12 00:05:51,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:51,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:51,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:51,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:51,030 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:51,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 325 transitions, 9098 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:51,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:51,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:51,422 INFO L129 PetriNetUnfolder]: 532/1108 cut-off events. [2021-03-12 00:05:51,423 INFO L130 PetriNetUnfolder]: For 26218/26250 co-relation queries the response was YES. [2021-03-12 00:05:51,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9875 conditions, 1108 events. 532/1108 cut-off events. For 26218/26250 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7157 event pairs, 77 based on Foata normal form. 2/1069 useless extension candidates. Maximal degree in co-relation 9764. Up to 418 conditions per place. [2021-03-12 00:05:51,434 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 181 selfloop transitions, 154 changer transitions 1/342 dead transitions. [2021-03-12 00:05:51,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 342 transitions, 9961 flow [2021-03-12 00:05:51,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:51,435 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:51,435 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:51,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:51,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:51,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:51,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,436 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,436 INFO L185 Difference]: Start difference. First operand has 316 places, 325 transitions, 9098 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:51,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 342 transitions, 9961 flow [2021-03-12 00:05:51,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 342 transitions, 9657 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:51,550 INFO L241 Difference]: Finished difference. Result has 318 places, 327 transitions, 9206 flow [2021-03-12 00:05:51,551 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=8802, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9206, PETRI_PLACES=318, PETRI_TRANSITIONS=327} [2021-03-12 00:05:51,551 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 295 predicate places. [2021-03-12 00:05:51,551 INFO L480 AbstractCegarLoop]: Abstraction has has 318 places, 327 transitions, 9206 flow [2021-03-12 00:05:51,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,551 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:51,551 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:51,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-12 00:05:51,551 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1792682485, now seen corresponding path program 56 times [2021-03-12 00:05:51,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:51,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868547657] [2021-03-12 00:05:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:51,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:51,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:51,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:51,573 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:51,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:51,579 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:51,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:51,588 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:51,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:51,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:51,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:51,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868547657] [2021-03-12 00:05:51,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:51,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:51,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3340725] [2021-03-12 00:05:51,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:51,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:51,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:51,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:51,614 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:51,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 327 transitions, 9206 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:51,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:51,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:51,926 INFO L129 PetriNetUnfolder]: 532/1104 cut-off events. [2021-03-12 00:05:51,927 INFO L130 PetriNetUnfolder]: For 26289/26321 co-relation queries the response was YES. [2021-03-12 00:05:51,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9897 conditions, 1104 events. 532/1104 cut-off events. For 26289/26321 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7101 event pairs, 77 based on Foata normal form. 2/1065 useless extension candidates. Maximal degree in co-relation 9786. Up to 418 conditions per place. [2021-03-12 00:05:51,938 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 182 selfloop transitions, 152 changer transitions 1/341 dead transitions. [2021-03-12 00:05:51,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 341 transitions, 9985 flow [2021-03-12 00:05:51,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:05:51,939 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:05:51,939 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:05:51,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:05:51,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:51,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:05:51,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,940 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:51,940 INFO L185 Difference]: Start difference. First operand has 318 places, 327 transitions, 9206 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:05:51,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 341 transitions, 9985 flow [2021-03-12 00:05:52,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 341 transitions, 9811 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:05:52,055 INFO L241 Difference]: Finished difference. Result has 321 places, 326 transitions, 9314 flow [2021-03-12 00:05:52,055 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9036, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9314, PETRI_PLACES=321, PETRI_TRANSITIONS=326} [2021-03-12 00:05:52,056 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 298 predicate places. [2021-03-12 00:05:52,056 INFO L480 AbstractCegarLoop]: Abstraction has has 321 places, 326 transitions, 9314 flow [2021-03-12 00:05:52,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:52,056 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:52,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-12 00:05:52,056 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:52,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1567647507, now seen corresponding path program 57 times [2021-03-12 00:05:52,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:52,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007959258] [2021-03-12 00:05:52,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:52,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:52,084 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:52,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:52,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:52,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007959258] [2021-03-12 00:05:52,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:52,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967029348] [2021-03-12 00:05:52,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:52,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:52,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:52,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:52,116 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:52,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 326 transitions, 9314 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:52,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:52,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:52,444 INFO L129 PetriNetUnfolder]: 532/1099 cut-off events. [2021-03-12 00:05:52,445 INFO L130 PetriNetUnfolder]: For 26636/26668 co-relation queries the response was YES. [2021-03-12 00:05:52,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9933 conditions, 1099 events. 532/1099 cut-off events. For 26636/26668 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 7057 event pairs, 79 based on Foata normal form. 2/1060 useless extension candidates. Maximal degree in co-relation 9823. Up to 418 conditions per place. [2021-03-12 00:05:52,457 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 181 selfloop transitions, 153 changer transitions 1/341 dead transitions. [2021-03-12 00:05:52,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 341 transitions, 10127 flow [2021-03-12 00:05:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:52,458 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:52,458 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:52,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:52,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:52,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:52,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,459 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,459 INFO L185 Difference]: Start difference. First operand has 321 places, 326 transitions, 9314 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:52,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 341 transitions, 10127 flow [2021-03-12 00:05:52,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 341 transitions, 9815 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:52,573 INFO L241 Difference]: Finished difference. Result has 323 places, 327 transitions, 9336 flow [2021-03-12 00:05:52,573 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9012, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9336, PETRI_PLACES=323, PETRI_TRANSITIONS=327} [2021-03-12 00:05:52,573 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 300 predicate places. [2021-03-12 00:05:52,573 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 327 transitions, 9336 flow [2021-03-12 00:05:52,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,573 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:52,573 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:52,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-12 00:05:52,573 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:52,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:52,574 INFO L82 PathProgramCache]: Analyzing trace with hash 178401829, now seen corresponding path program 58 times [2021-03-12 00:05:52,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:52,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973116874] [2021-03-12 00:05:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:52,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:52,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:52,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:52,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:52,594 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:52,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:52,601 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:52,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:52,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:52,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973116874] [2021-03-12 00:05:52,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:52,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:52,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674341016] [2021-03-12 00:05:52,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:52,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:52,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:52,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:52,625 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:52,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 327 transitions, 9336 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:52,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:52,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:52,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:53,042 INFO L129 PetriNetUnfolder]: 532/1096 cut-off events. [2021-03-12 00:05:53,043 INFO L130 PetriNetUnfolder]: For 26584/26616 co-relation queries the response was YES. [2021-03-12 00:05:53,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9931 conditions, 1096 events. 532/1096 cut-off events. For 26584/26616 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 6993 event pairs, 79 based on Foata normal form. 2/1057 useless extension candidates. Maximal degree in co-relation 9821. Up to 418 conditions per place. [2021-03-12 00:05:53,059 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 186 selfloop transitions, 152 changer transitions 1/345 dead transitions. [2021-03-12 00:05:53,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 345 transitions, 10196 flow [2021-03-12 00:05:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:53,060 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:53,060 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:53,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:53,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:53,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:53,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,061 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,061 INFO L185 Difference]: Start difference. First operand has 323 places, 327 transitions, 9336 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:53,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 345 transitions, 10196 flow [2021-03-12 00:05:53,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 345 transitions, 9867 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-03-12 00:05:53,225 INFO L241 Difference]: Finished difference. Result has 324 places, 330 transitions, 9381 flow [2021-03-12 00:05:53,225 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9018, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9381, PETRI_PLACES=324, PETRI_TRANSITIONS=330} [2021-03-12 00:05:53,225 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 301 predicate places. [2021-03-12 00:05:53,225 INFO L480 AbstractCegarLoop]: Abstraction has has 324 places, 330 transitions, 9381 flow [2021-03-12 00:05:53,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:53,225 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:53,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-12 00:05:53,226 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash 150696199, now seen corresponding path program 59 times [2021-03-12 00:05:53,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:53,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403210026] [2021-03-12 00:05:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:53,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:53,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:53,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:53,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:53,247 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:53,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:53,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:53,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:53,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403210026] [2021-03-12 00:05:53,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:53,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:53,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875951332] [2021-03-12 00:05:53,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:53,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:53,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:53,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:53,276 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:53,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 330 transitions, 9381 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:53,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:53,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:53,640 INFO L129 PetriNetUnfolder]: 532/1092 cut-off events. [2021-03-12 00:05:53,640 INFO L130 PetriNetUnfolder]: For 26220/26252 co-relation queries the response was YES. [2021-03-12 00:05:53,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9905 conditions, 1092 events. 532/1092 cut-off events. For 26220/26252 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 6961 event pairs, 79 based on Foata normal form. 2/1053 useless extension candidates. Maximal degree in co-relation 9796. Up to 418 conditions per place. [2021-03-12 00:05:53,651 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 185 selfloop transitions, 151 changer transitions 1/343 dead transitions. [2021-03-12 00:05:53,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 343 transitions, 10158 flow [2021-03-12 00:05:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:53,652 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:53,652 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:53,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:53,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:53,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:53,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,653 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,653 INFO L185 Difference]: Start difference. First operand has 324 places, 330 transitions, 9381 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:53,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 343 transitions, 10158 flow [2021-03-12 00:05:53,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 343 transitions, 9855 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:53,766 INFO L241 Difference]: Finished difference. Result has 325 places, 329 transitions, 9359 flow [2021-03-12 00:05:53,767 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9084, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9359, PETRI_PLACES=325, PETRI_TRANSITIONS=329} [2021-03-12 00:05:53,767 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 302 predicate places. [2021-03-12 00:05:53,767 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 329 transitions, 9359 flow [2021-03-12 00:05:53,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,767 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:53,767 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:53,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-12 00:05:53,767 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:53,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:53,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1762656375, now seen corresponding path program 60 times [2021-03-12 00:05:53,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:53,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222503642] [2021-03-12 00:05:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:53,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:53,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:53,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:53,787 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:53,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:53,792 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:53,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:53,800 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:53,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:53,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:53,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:53,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222503642] [2021-03-12 00:05:53,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:53,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:53,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670816481] [2021-03-12 00:05:53,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:53,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:53,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:53,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:53,826 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:53,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 329 transitions, 9359 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:53,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:53,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:53,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:54,118 INFO L129 PetriNetUnfolder]: 532/1083 cut-off events. [2021-03-12 00:05:54,118 INFO L130 PetriNetUnfolder]: For 26515/26590 co-relation queries the response was YES. [2021-03-12 00:05:54,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9858 conditions, 1083 events. 532/1083 cut-off events. For 26515/26590 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 6862 event pairs, 78 based on Foata normal form. 17/1059 useless extension candidates. Maximal degree in co-relation 9751. Up to 418 conditions per place. [2021-03-12 00:05:54,131 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 189 selfloop transitions, 149 changer transitions 1/345 dead transitions. [2021-03-12 00:05:54,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 345 transitions, 10154 flow [2021-03-12 00:05:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:05:54,132 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:05:54,132 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:05:54,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:05:54,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:54,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:05:54,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,133 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,133 INFO L185 Difference]: Start difference. First operand has 325 places, 329 transitions, 9359 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:05:54,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 345 transitions, 10154 flow [2021-03-12 00:05:54,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 345 transitions, 9853 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:54,274 INFO L241 Difference]: Finished difference. Result has 326 places, 328 transitions, 9335 flow [2021-03-12 00:05:54,274 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9066, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9335, PETRI_PLACES=326, PETRI_TRANSITIONS=328} [2021-03-12 00:05:54,274 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 303 predicate places. [2021-03-12 00:05:54,274 INFO L480 AbstractCegarLoop]: Abstraction has has 326 places, 328 transitions, 9335 flow [2021-03-12 00:05:54,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,274 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:54,275 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:54,275 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-12 00:05:54,275 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1734950745, now seen corresponding path program 61 times [2021-03-12 00:05:54,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:54,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848941514] [2021-03-12 00:05:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:54,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:54,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:54,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:54,288 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:54,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:54,293 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:54,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:54,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:54,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848941514] [2021-03-12 00:05:54,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:54,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:54,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155096374] [2021-03-12 00:05:54,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:54,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:54,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:54,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:54,318 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:54,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 328 transitions, 9335 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:54,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:54,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:54,649 INFO L129 PetriNetUnfolder]: 532/1078 cut-off events. [2021-03-12 00:05:54,649 INFO L130 PetriNetUnfolder]: For 26291/26366 co-relation queries the response was YES. [2021-03-12 00:05:54,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9838 conditions, 1078 events. 532/1078 cut-off events. For 26291/26366 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 6780 event pairs, 79 based on Foata normal form. 17/1054 useless extension candidates. Maximal degree in co-relation 9732. Up to 418 conditions per place. [2021-03-12 00:05:54,663 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 188 selfloop transitions, 148 changer transitions 1/343 dead transitions. [2021-03-12 00:05:54,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 343 transitions, 10122 flow [2021-03-12 00:05:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:54,664 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:54,664 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:54,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:54,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:54,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:54,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,665 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,665 INFO L185 Difference]: Start difference. First operand has 326 places, 328 transitions, 9335 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:54,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 343 transitions, 10122 flow [2021-03-12 00:05:54,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 343 transitions, 9896 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:54,775 INFO L241 Difference]: Finished difference. Result has 328 places, 327 transitions, 9387 flow [2021-03-12 00:05:54,776 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9115, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9387, PETRI_PLACES=328, PETRI_TRANSITIONS=327} [2021-03-12 00:05:54,776 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 305 predicate places. [2021-03-12 00:05:54,776 INFO L480 AbstractCegarLoop]: Abstraction has has 328 places, 327 transitions, 9387 flow [2021-03-12 00:05:54,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,776 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:54,776 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:54,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-12 00:05:54,776 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:54,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1088595691, now seen corresponding path program 62 times [2021-03-12 00:05:54,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:54,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146651382] [2021-03-12 00:05:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:54,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:54,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:54,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:54,790 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:54,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:54,796 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-03-12 00:05:54,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:54,804 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:54,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:54,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:54,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:54,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146651382] [2021-03-12 00:05:54,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:54,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:54,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226039780] [2021-03-12 00:05:54,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:54,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:54,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:54,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:54,826 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:54,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 327 transitions, 9387 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:54,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:54,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:54,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:55,119 INFO L129 PetriNetUnfolder]: 544/1124 cut-off events. [2021-03-12 00:05:55,119 INFO L130 PetriNetUnfolder]: For 28163/28238 co-relation queries the response was YES. [2021-03-12 00:05:55,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10188 conditions, 1124 events. 544/1124 cut-off events. For 28163/28238 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 7286 event pairs, 52 based on Foata normal form. 7/1090 useless extension candidates. Maximal degree in co-relation 10084. Up to 441 conditions per place. [2021-03-12 00:05:55,136 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 263 selfloop transitions, 147 changer transitions 1/417 dead transitions. [2021-03-12 00:05:55,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 417 transitions, 11998 flow [2021-03-12 00:05:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:55,137 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:55,137 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:55,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:55,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:55,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:55,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,138 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,138 INFO L185 Difference]: Start difference. First operand has 328 places, 327 transitions, 9387 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:55,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 417 transitions, 11998 flow [2021-03-12 00:05:55,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 417 transitions, 11553 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-12 00:05:55,310 INFO L241 Difference]: Finished difference. Result has 333 places, 347 transitions, 9976 flow [2021-03-12 00:05:55,310 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9002, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9976, PETRI_PLACES=333, PETRI_TRANSITIONS=347} [2021-03-12 00:05:55,310 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 310 predicate places. [2021-03-12 00:05:55,311 INFO L480 AbstractCegarLoop]: Abstraction has has 333 places, 347 transitions, 9976 flow [2021-03-12 00:05:55,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,311 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:55,311 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:55,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-12 00:05:55,311 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:55,311 INFO L82 PathProgramCache]: Analyzing trace with hash 959329331, now seen corresponding path program 63 times [2021-03-12 00:05:55,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:55,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644501344] [2021-03-12 00:05:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:55,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:55,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:55,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:55,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:55,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:55,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:55,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:55,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:55,337 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:55,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:55,347 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:55,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:55,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:55,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:55,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644501344] [2021-03-12 00:05:55,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:55,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:55,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049268199] [2021-03-12 00:05:55,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:55,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:55,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:55,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:55,371 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:55,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 347 transitions, 9976 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:55,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:55,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:55,827 INFO L129 PetriNetUnfolder]: 542/1139 cut-off events. [2021-03-12 00:05:55,828 INFO L130 PetriNetUnfolder]: For 29826/29860 co-relation queries the response was YES. [2021-03-12 00:05:55,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10593 conditions, 1139 events. 542/1139 cut-off events. For 29826/29860 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 7491 event pairs, 67 based on Foata normal form. 2/1100 useless extension candidates. Maximal degree in co-relation 10485. Up to 441 conditions per place. [2021-03-12 00:05:55,847 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 233 selfloop transitions, 145 changer transitions 1/385 dead transitions. [2021-03-12 00:05:55,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 385 transitions, 11334 flow [2021-03-12 00:05:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:55,848 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:55,848 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:55,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:55,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:55,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:55,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,849 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:55,849 INFO L185 Difference]: Start difference. First operand has 333 places, 347 transitions, 9976 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:55,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 385 transitions, 11334 flow [2021-03-12 00:05:56,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 385 transitions, 11180 flow, removed 32 selfloop flow, removed 2 redundant places. [2021-03-12 00:05:56,051 INFO L241 Difference]: Finished difference. Result has 342 places, 362 transitions, 10558 flow [2021-03-12 00:05:56,051 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=9848, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10558, PETRI_PLACES=342, PETRI_TRANSITIONS=362} [2021-03-12 00:05:56,051 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 319 predicate places. [2021-03-12 00:05:56,051 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 362 transitions, 10558 flow [2021-03-12 00:05:56,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:56,052 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:56,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-12 00:05:56,052 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:56,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1186578731, now seen corresponding path program 64 times [2021-03-12 00:05:56,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:56,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754648615] [2021-03-12 00:05:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:56,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:56,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:56,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:56,069 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:56,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:56,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:56,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:56,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:56,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754648615] [2021-03-12 00:05:56,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:56,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:56,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737613907] [2021-03-12 00:05:56,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:56,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:56,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:56,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:56,109 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:56,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 362 transitions, 10558 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:56,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:56,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:56,463 INFO L129 PetriNetUnfolder]: 554/1193 cut-off events. [2021-03-12 00:05:56,464 INFO L130 PetriNetUnfolder]: For 32027/32061 co-relation queries the response was YES. [2021-03-12 00:05:56,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11151 conditions, 1193 events. 554/1193 cut-off events. For 32027/32061 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 8102 event pairs, 52 based on Foata normal form. 2/1152 useless extension candidates. Maximal degree in co-relation 11039. Up to 441 conditions per place. [2021-03-12 00:05:56,477 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 278 selfloop transitions, 153 changer transitions 1/438 dead transitions. [2021-03-12 00:05:56,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 438 transitions, 13015 flow [2021-03-12 00:05:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-12 00:05:56,478 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5321428571428571 [2021-03-12 00:05:56,478 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-12 00:05:56,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-12 00:05:56,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:56,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-12 00:05:56,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,479 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,479 INFO L185 Difference]: Start difference. First operand has 342 places, 362 transitions, 10558 flow. Second operand 8 states and 149 transitions. [2021-03-12 00:05:56,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 438 transitions, 13015 flow [2021-03-12 00:05:56,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 438 transitions, 12686 flow, removed 56 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:56,623 INFO L241 Difference]: Finished difference. Result has 350 places, 381 transitions, 11248 flow [2021-03-12 00:05:56,624 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=10286, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11248, PETRI_PLACES=350, PETRI_TRANSITIONS=381} [2021-03-12 00:05:56,624 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 327 predicate places. [2021-03-12 00:05:56,624 INFO L480 AbstractCegarLoop]: Abstraction has has 350 places, 381 transitions, 11248 flow [2021-03-12 00:05:56,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,624 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:56,624 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:56,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-12 00:05:56,624 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 182977045, now seen corresponding path program 65 times [2021-03-12 00:05:56,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:56,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310148326] [2021-03-12 00:05:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:56,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:56,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:56,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:56,649 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:56,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:56,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:56,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:56,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:56,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310148326] [2021-03-12 00:05:56,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:56,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:56,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128838214] [2021-03-12 00:05:56,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:56,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:56,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:56,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:56,679 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:56,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 381 transitions, 11248 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:56,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:56,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:56,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:57,045 INFO L129 PetriNetUnfolder]: 554/1192 cut-off events. [2021-03-12 00:05:57,046 INFO L130 PetriNetUnfolder]: For 33640/33674 co-relation queries the response was YES. [2021-03-12 00:05:57,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11237 conditions, 1192 events. 554/1192 cut-off events. For 33640/33674 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 8075 event pairs, 66 based on Foata normal form. 2/1151 useless extension candidates. Maximal degree in co-relation 11121. Up to 441 conditions per place. [2021-03-12 00:05:57,059 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 247 selfloop transitions, 162 changer transitions 1/416 dead transitions. [2021-03-12 00:05:57,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 416 transitions, 12634 flow [2021-03-12 00:05:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:57,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:57,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:05:57,059 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:05:57,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:05:57,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:05:57,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:57,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:05:57,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,060 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,060 INFO L185 Difference]: Start difference. First operand has 350 places, 381 transitions, 11248 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:05:57,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 416 transitions, 12634 flow [2021-03-12 00:05:57,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 416 transitions, 12391 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:57,209 INFO L241 Difference]: Finished difference. Result has 357 places, 391 transitions, 11627 flow [2021-03-12 00:05:57,210 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=11018, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11627, PETRI_PLACES=357, PETRI_TRANSITIONS=391} [2021-03-12 00:05:57,210 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 334 predicate places. [2021-03-12 00:05:57,210 INFO L480 AbstractCegarLoop]: Abstraction has has 357 places, 391 transitions, 11627 flow [2021-03-12 00:05:57,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,210 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:57,210 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:57,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-12 00:05:57,210 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 931623701, now seen corresponding path program 66 times [2021-03-12 00:05:57,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:57,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168352227] [2021-03-12 00:05:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:57,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:57,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:57,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:05:57,230 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:05:57,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:05:57,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:57,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168352227] [2021-03-12 00:05:57,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:57,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:57,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123554085] [2021-03-12 00:05:57,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:57,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:57,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:57,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:57,259 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:57,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 391 transitions, 11627 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:57,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:57,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:57,575 INFO L129 PetriNetUnfolder]: 554/1185 cut-off events. [2021-03-12 00:05:57,575 INFO L130 PetriNetUnfolder]: For 34309/34343 co-relation queries the response was YES. [2021-03-12 00:05:57,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11381 conditions, 1185 events. 554/1185 cut-off events. For 34309/34343 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 7961 event pairs, 64 based on Foata normal form. 2/1144 useless extension candidates. Maximal degree in co-relation 11262. Up to 441 conditions per place. [2021-03-12 00:05:57,588 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 240 selfloop transitions, 166 changer transitions 1/413 dead transitions. [2021-03-12 00:05:57,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 413 transitions, 12700 flow [2021-03-12 00:05:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:05:57,589 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:05:57,589 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:05:57,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:05:57,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:57,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:05:57,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,590 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,590 INFO L185 Difference]: Start difference. First operand has 357 places, 391 transitions, 11627 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:05:57,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 413 transitions, 12700 flow [2021-03-12 00:05:57,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 413 transitions, 12442 flow, removed 22 selfloop flow, removed 3 redundant places. [2021-03-12 00:05:57,739 INFO L241 Difference]: Finished difference. Result has 362 places, 392 transitions, 11727 flow [2021-03-12 00:05:57,739 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=11378, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11727, PETRI_PLACES=362, PETRI_TRANSITIONS=392} [2021-03-12 00:05:57,739 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 339 predicate places. [2021-03-12 00:05:57,740 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 392 transitions, 11727 flow [2021-03-12 00:05:57,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,740 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:57,740 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:57,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-12 00:05:57,740 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:57,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1809745267, now seen corresponding path program 67 times [2021-03-12 00:05:57,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:57,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692986687] [2021-03-12 00:05:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:57,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:57,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:57,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:57,754 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:57,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:57,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:05:57,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:57,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:57,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:57,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692986687] [2021-03-12 00:05:57,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:57,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:57,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391957176] [2021-03-12 00:05:57,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:57,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:57,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:57,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:57,790 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:57,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 392 transitions, 11727 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:57,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:57,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:57,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:58,153 INFO L129 PetriNetUnfolder]: 554/1184 cut-off events. [2021-03-12 00:05:58,154 INFO L130 PetriNetUnfolder]: For 34410/34444 co-relation queries the response was YES. [2021-03-12 00:05:58,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11410 conditions, 1184 events. 554/1184 cut-off events. For 34410/34444 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 7939 event pairs, 58 based on Foata normal form. 2/1143 useless extension candidates. Maximal degree in co-relation 11290. Up to 441 conditions per place. [2021-03-12 00:05:58,168 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 268 selfloop transitions, 167 changer transitions 1/442 dead transitions. [2021-03-12 00:05:58,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 442 transitions, 13541 flow [2021-03-12 00:05:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:58,169 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:58,169 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:58,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,169 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,169 INFO L185 Difference]: Start difference. First operand has 362 places, 392 transitions, 11727 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:58,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 442 transitions, 13541 flow [2021-03-12 00:05:58,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 442 transitions, 13196 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:05:58,330 INFO L241 Difference]: Finished difference. Result has 366 places, 404 transitions, 12189 flow [2021-03-12 00:05:58,331 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=11412, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12189, PETRI_PLACES=366, PETRI_TRANSITIONS=404} [2021-03-12 00:05:58,331 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 343 predicate places. [2021-03-12 00:05:58,331 INFO L480 AbstractCegarLoop]: Abstraction has has 366 places, 404 transitions, 12189 flow [2021-03-12 00:05:58,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,331 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:58,331 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:58,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-12 00:05:58,331 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:58,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:58,331 INFO L82 PathProgramCache]: Analyzing trace with hash 395604923, now seen corresponding path program 68 times [2021-03-12 00:05:58,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:58,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914787415] [2021-03-12 00:05:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:58,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:58,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:58,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:58,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:58,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:58,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:58,348 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:05:58,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:05:58,353 INFO L142 QuantifierPusher]: treesize reduction 21, result has 48.8 percent of original size [2021-03-12 00:05:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:58,364 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:05:58,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:05:58,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:58,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914787415] [2021-03-12 00:05:58,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:58,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:58,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099923809] [2021-03-12 00:05:58,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:58,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:58,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:58,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:58,385 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:58,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 404 transitions, 12189 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:58,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:58,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:58,748 INFO L129 PetriNetUnfolder]: 553/1198 cut-off events. [2021-03-12 00:05:58,748 INFO L130 PetriNetUnfolder]: For 35364/35398 co-relation queries the response was YES. [2021-03-12 00:05:58,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11672 conditions, 1198 events. 553/1198 cut-off events. For 35364/35398 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 8166 event pairs, 54 based on Foata normal form. 2/1157 useless extension candidates. Maximal degree in co-relation 11550. Up to 441 conditions per place. [2021-03-12 00:05:58,761 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 276 selfloop transitions, 169 changer transitions 1/452 dead transitions. [2021-03-12 00:05:58,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 452 transitions, 13985 flow [2021-03-12 00:05:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:58,761 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:58,761 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:58,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:58,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,762 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:58,762 INFO L185 Difference]: Start difference. First operand has 366 places, 404 transitions, 12189 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:58,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 452 transitions, 13985 flow [2021-03-12 00:05:58,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 452 transitions, 13774 flow, removed 47 selfloop flow, removed 6 redundant places. [2021-03-12 00:05:59,005 INFO L241 Difference]: Finished difference. Result has 372 places, 427 transitions, 13123 flow [2021-03-12 00:05:59,006 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=12011, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13123, PETRI_PLACES=372, PETRI_TRANSITIONS=427} [2021-03-12 00:05:59,006 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 349 predicate places. [2021-03-12 00:05:59,006 INFO L480 AbstractCegarLoop]: Abstraction has has 372 places, 427 transitions, 13123 flow [2021-03-12 00:05:59,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:59,006 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:59,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-12 00:05:59,007 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:59,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1846810291, now seen corresponding path program 69 times [2021-03-12 00:05:59,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:59,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555363807] [2021-03-12 00:05:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:59,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:59,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:59,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:59,030 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:59,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:59,041 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:59,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:59,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:59,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:59,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555363807] [2021-03-12 00:05:59,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:59,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:59,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827005070] [2021-03-12 00:05:59,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:59,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:59,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:59,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:59,075 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:59,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 427 transitions, 13123 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:59,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:59,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:05:59,489 INFO L129 PetriNetUnfolder]: 553/1193 cut-off events. [2021-03-12 00:05:59,489 INFO L130 PetriNetUnfolder]: For 38024/38058 co-relation queries the response was YES. [2021-03-12 00:05:59,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 1193 events. 553/1193 cut-off events. For 38024/38058 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 8081 event pairs, 56 based on Foata normal form. 2/1152 useless extension candidates. Maximal degree in co-relation 11898. Up to 441 conditions per place. [2021-03-12 00:05:59,507 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 249 selfloop transitions, 189 changer transitions 1/445 dead transitions. [2021-03-12 00:05:59,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 445 transitions, 14197 flow [2021-03-12 00:05:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:05:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:05:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:05:59,508 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:05:59,508 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:05:59,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:05:59,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:05:59,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:05:59,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,509 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,509 INFO L185 Difference]: Start difference. First operand has 372 places, 427 transitions, 13123 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:05:59,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 445 transitions, 14197 flow [2021-03-12 00:05:59,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 445 transitions, 14117 flow, removed 40 selfloop flow, removed 1 redundant places. [2021-03-12 00:05:59,701 INFO L241 Difference]: Finished difference. Result has 379 places, 430 transitions, 13500 flow [2021-03-12 00:05:59,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13049, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13500, PETRI_PLACES=379, PETRI_TRANSITIONS=430} [2021-03-12 00:05:59,702 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 356 predicate places. [2021-03-12 00:05:59,702 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 430 transitions, 13500 flow [2021-03-12 00:05:59,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:05:59,702 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:05:59,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-12 00:05:59,702 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:05:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:05:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1698112203, now seen corresponding path program 70 times [2021-03-12 00:05:59,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:05:59,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737492556] [2021-03-12 00:05:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:05:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:05:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:05:59,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:05:59,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:05:59,716 INFO L142 QuantifierPusher]: treesize reduction 19, result has 47.2 percent of original size [2021-03-12 00:05:59,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:05:59,726 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:05:59,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:05:59,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:05:59,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:05:59,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:05:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:05:59,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737492556] [2021-03-12 00:05:59,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:05:59,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:05:59,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102098704] [2021-03-12 00:05:59,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:05:59,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:05:59,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:05:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:05:59,758 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:05:59,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 430 transitions, 13500 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:05:59,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:05:59,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:05:59,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:00,150 INFO L129 PetriNetUnfolder]: 553/1190 cut-off events. [2021-03-12 00:06:00,150 INFO L130 PetriNetUnfolder]: For 39676/39710 co-relation queries the response was YES. [2021-03-12 00:06:00,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12173 conditions, 1190 events. 553/1190 cut-off events. For 39676/39710 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 8078 event pairs, 61 based on Foata normal form. 2/1149 useless extension candidates. Maximal degree in co-relation 12048. Up to 441 conditions per place. [2021-03-12 00:06:00,165 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 248 selfloop transitions, 188 changer transitions 1/443 dead transitions. [2021-03-12 00:06:00,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 443 transitions, 14483 flow [2021-03-12 00:06:00,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:06:00,166 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:06:00,166 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:00,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,166 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,167 INFO L185 Difference]: Start difference. First operand has 379 places, 430 transitions, 13500 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:06:00,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 443 transitions, 14483 flow [2021-03-12 00:06:00,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 443 transitions, 14157 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:00,380 INFO L241 Difference]: Finished difference. Result has 382 places, 429 transitions, 13526 flow [2021-03-12 00:06:00,381 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13178, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13526, PETRI_PLACES=382, PETRI_TRANSITIONS=429} [2021-03-12 00:06:00,381 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 359 predicate places. [2021-03-12 00:06:00,381 INFO L480 AbstractCegarLoop]: Abstraction has has 382 places, 429 transitions, 13526 flow [2021-03-12 00:06:00,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,381 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:00,381 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:00,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-12 00:06:00,381 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:00,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:00,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2029985421, now seen corresponding path program 71 times [2021-03-12 00:06:00,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:00,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306293070] [2021-03-12 00:06:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:00,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:00,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:00,394 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:00,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:00,400 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:00,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:00,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:00,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:00,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:00,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:00,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306293070] [2021-03-12 00:06:00,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:00,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:00,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542375625] [2021-03-12 00:06:00,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:00,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:00,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:00,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:00,427 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:00,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 429 transitions, 13526 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:00,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:00,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:00,808 INFO L129 PetriNetUnfolder]: 553/1184 cut-off events. [2021-03-12 00:06:00,808 INFO L130 PetriNetUnfolder]: For 39228/39262 co-relation queries the response was YES. [2021-03-12 00:06:00,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12193 conditions, 1184 events. 553/1184 cut-off events. For 39228/39262 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7990 event pairs, 53 based on Foata normal form. 2/1143 useless extension candidates. Maximal degree in co-relation 12068. Up to 441 conditions per place. [2021-03-12 00:06:00,822 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 277 selfloop transitions, 166 changer transitions 1/450 dead transitions. [2021-03-12 00:06:00,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 450 transitions, 14720 flow [2021-03-12 00:06:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:06:00,826 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:06:00,826 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:00,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:06:00,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,827 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:00,827 INFO L185 Difference]: Start difference. First operand has 382 places, 429 transitions, 13526 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:06:00,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 450 transitions, 14720 flow [2021-03-12 00:06:01,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 450 transitions, 14339 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:01,020 INFO L241 Difference]: Finished difference. Result has 386 places, 433 transitions, 13689 flow [2021-03-12 00:06:01,020 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13161, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13689, PETRI_PLACES=386, PETRI_TRANSITIONS=433} [2021-03-12 00:06:01,021 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 363 predicate places. [2021-03-12 00:06:01,021 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 433 transitions, 13689 flow [2021-03-12 00:06:01,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,021 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:01,021 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:01,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-12 00:06:01,021 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:01,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:01,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1950443451, now seen corresponding path program 72 times [2021-03-12 00:06:01,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:01,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563161561] [2021-03-12 00:06:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:01,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:01,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:01,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:01,033 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:01,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:01,039 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:01,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:01,047 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:01,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:01,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:01,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563161561] [2021-03-12 00:06:01,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:01,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:01,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710986045] [2021-03-12 00:06:01,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:01,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:01,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:01,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:01,074 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:01,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 433 transitions, 13689 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:01,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:01,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:01,432 INFO L129 PetriNetUnfolder]: 553/1180 cut-off events. [2021-03-12 00:06:01,432 INFO L130 PetriNetUnfolder]: For 39418/39452 co-relation queries the response was YES. [2021-03-12 00:06:01,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12211 conditions, 1180 events. 553/1180 cut-off events. For 39418/39452 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7952 event pairs, 53 based on Foata normal form. 2/1139 useless extension candidates. Maximal degree in co-relation 12084. Up to 441 conditions per place. [2021-03-12 00:06:01,448 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 276 selfloop transitions, 165 changer transitions 1/448 dead transitions. [2021-03-12 00:06:01,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 448 transitions, 14694 flow [2021-03-12 00:06:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:06:01,448 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:06:01,449 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:06:01,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:06:01,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:01,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:06:01,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,451 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,451 INFO L185 Difference]: Start difference. First operand has 386 places, 433 transitions, 13689 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:06:01,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 448 transitions, 14694 flow [2021-03-12 00:06:01,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 448 transitions, 14378 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:01,640 INFO L241 Difference]: Finished difference. Result has 389 places, 432 transitions, 13680 flow [2021-03-12 00:06:01,640 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13377, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13680, PETRI_PLACES=389, PETRI_TRANSITIONS=432} [2021-03-12 00:06:01,640 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 366 predicate places. [2021-03-12 00:06:01,640 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 432 transitions, 13680 flow [2021-03-12 00:06:01,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,640 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:01,641 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:01,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-12 00:06:01,641 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:01,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1470783165, now seen corresponding path program 73 times [2021-03-12 00:06:01,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:01,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346167107] [2021-03-12 00:06:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:01,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:01,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:01,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:01,654 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:01,660 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:01,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:01,668 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:01,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:01,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:01,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:01,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346167107] [2021-03-12 00:06:01,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:01,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:01,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550106714] [2021-03-12 00:06:01,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:01,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:01,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:01,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:01,689 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:01,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 432 transitions, 13680 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:01,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:01,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:01,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:02,071 INFO L129 PetriNetUnfolder]: 553/1180 cut-off events. [2021-03-12 00:06:02,072 INFO L130 PetriNetUnfolder]: For 39079/39113 co-relation queries the response was YES. [2021-03-12 00:06:02,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12204 conditions, 1180 events. 553/1180 cut-off events. For 39079/39113 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7950 event pairs, 56 based on Foata normal form. 2/1139 useless extension candidates. Maximal degree in co-relation 12077. Up to 441 conditions per place. [2021-03-12 00:06:02,085 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 281 selfloop transitions, 169 changer transitions 1/457 dead transitions. [2021-03-12 00:06:02,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 457 transitions, 14956 flow [2021-03-12 00:06:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:06:02,086 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:06:02,086 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:06:02,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:06:02,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:02,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:06:02,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,087 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,088 INFO L185 Difference]: Start difference. First operand has 389 places, 432 transitions, 13680 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:06:02,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 457 transitions, 14956 flow [2021-03-12 00:06:02,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 457 transitions, 14756 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:02,278 INFO L241 Difference]: Finished difference. Result has 394 places, 436 transitions, 14021 flow [2021-03-12 00:06:02,279 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13492, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14021, PETRI_PLACES=394, PETRI_TRANSITIONS=436} [2021-03-12 00:06:02,279 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 371 predicate places. [2021-03-12 00:06:02,279 INFO L480 AbstractCegarLoop]: Abstraction has has 394 places, 436 transitions, 14021 flow [2021-03-12 00:06:02,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,279 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:02,279 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:02,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-12 00:06:02,279 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:02,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:02,279 INFO L82 PathProgramCache]: Analyzing trace with hash -764499739, now seen corresponding path program 74 times [2021-03-12 00:06:02,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:02,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896195656] [2021-03-12 00:06:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:02,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:02,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:02,293 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:02,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:02,298 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:02,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:02,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:02,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:02,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896195656] [2021-03-12 00:06:02,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:02,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:02,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157680730] [2021-03-12 00:06:02,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:02,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:02,325 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:02,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 436 transitions, 14021 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:02,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:02,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:02,732 INFO L129 PetriNetUnfolder]: 553/1174 cut-off events. [2021-03-12 00:06:02,732 INFO L130 PetriNetUnfolder]: For 41504/41538 co-relation queries the response was YES. [2021-03-12 00:06:02,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12262 conditions, 1174 events. 553/1174 cut-off events. For 41504/41538 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 7891 event pairs, 62 based on Foata normal form. 2/1133 useless extension candidates. Maximal degree in co-relation 12133. Up to 441 conditions per place. [2021-03-12 00:06:02,747 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 270 selfloop transitions, 178 changer transitions 1/455 dead transitions. [2021-03-12 00:06:02,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 455 transitions, 15112 flow [2021-03-12 00:06:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:06:02,748 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:06:02,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:06:02,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:06:02,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:02,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:06:02,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,748 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,748 INFO L185 Difference]: Start difference. First operand has 394 places, 436 transitions, 14021 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:06:02,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 455 transitions, 15112 flow [2021-03-12 00:06:02,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 455 transitions, 14805 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:02,943 INFO L241 Difference]: Finished difference. Result has 397 places, 435 transitions, 14050 flow [2021-03-12 00:06:02,943 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13722, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14050, PETRI_PLACES=397, PETRI_TRANSITIONS=435} [2021-03-12 00:06:02,943 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 374 predicate places. [2021-03-12 00:06:02,943 INFO L480 AbstractCegarLoop]: Abstraction has has 397 places, 435 transitions, 14050 flow [2021-03-12 00:06:02,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,943 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:02,943 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:02,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-12 00:06:02,943 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:02,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1387666275, now seen corresponding path program 75 times [2021-03-12 00:06:02,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:02,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797310942] [2021-03-12 00:06:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:02,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:02,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:02,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:02,958 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:02,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:02,963 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:02,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:02,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:02,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:02,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:02,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:02,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797310942] [2021-03-12 00:06:02,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:02,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:02,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860817792] [2021-03-12 00:06:02,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:02,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:02,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:02,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:02,987 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:02,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 435 transitions, 14050 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:02,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:02,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:02,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:03,375 INFO L129 PetriNetUnfolder]: 553/1168 cut-off events. [2021-03-12 00:06:03,375 INFO L130 PetriNetUnfolder]: For 40905/40939 co-relation queries the response was YES. [2021-03-12 00:06:03,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12247 conditions, 1168 events. 553/1168 cut-off events. For 40905/40939 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7772 event pairs, 54 based on Foata normal form. 2/1127 useless extension candidates. Maximal degree in co-relation 12118. Up to 441 conditions per place. [2021-03-12 00:06:03,390 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 279 selfloop transitions, 168 changer transitions 1/454 dead transitions. [2021-03-12 00:06:03,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 454 transitions, 15141 flow [2021-03-12 00:06:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2021-03-12 00:06:03,391 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-03-12 00:06:03,391 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 150 transitions. [2021-03-12 00:06:03,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 150 transitions. [2021-03-12 00:06:03,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:03,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 150 transitions. [2021-03-12 00:06:03,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:03,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:03,392 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:03,392 INFO L185 Difference]: Start difference. First operand has 397 places, 435 transitions, 14050 flow. Second operand 8 states and 150 transitions. [2021-03-12 00:06:03,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 454 transitions, 15141 flow [2021-03-12 00:06:03,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 454 transitions, 14774 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:03,650 INFO L241 Difference]: Finished difference. Result has 398 places, 434 transitions, 13994 flow [2021-03-12 00:06:03,651 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13687, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13994, PETRI_PLACES=398, PETRI_TRANSITIONS=434} [2021-03-12 00:06:03,651 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 375 predicate places. [2021-03-12 00:06:03,651 INFO L480 AbstractCegarLoop]: Abstraction has has 398 places, 434 transitions, 13994 flow [2021-03-12 00:06:03,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:03,651 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:03,651 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:03,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-12 00:06:03,651 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:03,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:03,651 INFO L82 PathProgramCache]: Analyzing trace with hash -847616629, now seen corresponding path program 76 times [2021-03-12 00:06:03,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:03,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474551301] [2021-03-12 00:06:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:03,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:03,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:03,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:03,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:03,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:03,666 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:03,672 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:03,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:03,680 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:03,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:03,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:03,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474551301] [2021-03-12 00:06:03,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:03,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:03,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299040671] [2021-03-12 00:06:03,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:03,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:03,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:03,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:03,705 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:03,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 434 transitions, 13994 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:03,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:03,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:03,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:04,100 INFO L129 PetriNetUnfolder]: 553/1163 cut-off events. [2021-03-12 00:06:04,100 INFO L130 PetriNetUnfolder]: For 40816/40850 co-relation queries the response was YES. [2021-03-12 00:06:04,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12237 conditions, 1163 events. 553/1163 cut-off events. For 40816/40850 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7707 event pairs, 56 based on Foata normal form. 2/1122 useless extension candidates. Maximal degree in co-relation 12110. Up to 441 conditions per place. [2021-03-12 00:06:04,120 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 268 selfloop transitions, 177 changer transitions 1/452 dead transitions. [2021-03-12 00:06:04,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 452 transitions, 15075 flow [2021-03-12 00:06:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:06:04,121 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:06:04,121 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:06:04,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:06:04,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:04,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:06:04,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,122 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,122 INFO L185 Difference]: Start difference. First operand has 398 places, 434 transitions, 13994 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:06:04,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 452 transitions, 15075 flow [2021-03-12 00:06:04,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 452 transitions, 14740 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:04,327 INFO L241 Difference]: Finished difference. Result has 400 places, 433 transitions, 13991 flow [2021-03-12 00:06:04,328 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13665, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13991, PETRI_PLACES=400, PETRI_TRANSITIONS=433} [2021-03-12 00:06:04,328 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 377 predicate places. [2021-03-12 00:06:04,328 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 433 transitions, 13991 flow [2021-03-12 00:06:04,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,328 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:04,328 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:04,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-12 00:06:04,328 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:04,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:04,328 INFO L82 PathProgramCache]: Analyzing trace with hash 99860155, now seen corresponding path program 77 times [2021-03-12 00:06:04,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:04,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910766096] [2021-03-12 00:06:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:04,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:04,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:04,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:04,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:04,348 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:04,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:04,355 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:04,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:04,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910766096] [2021-03-12 00:06:04,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:04,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:04,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878976446] [2021-03-12 00:06:04,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:04,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:04,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:04,377 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:04,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 433 transitions, 13991 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:04,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:04,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:04,736 INFO L129 PetriNetUnfolder]: 553/1163 cut-off events. [2021-03-12 00:06:04,736 INFO L130 PetriNetUnfolder]: For 40351/40385 co-relation queries the response was YES. [2021-03-12 00:06:04,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12209 conditions, 1163 events. 553/1163 cut-off events. For 40351/40385 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7742 event pairs, 57 based on Foata normal form. 2/1122 useless extension candidates. Maximal degree in co-relation 12082. Up to 441 conditions per place. [2021-03-12 00:06:04,751 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 256 selfloop transitions, 183 changer transitions 1/446 dead transitions. [2021-03-12 00:06:04,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 446 transitions, 14980 flow [2021-03-12 00:06:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:04,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:06:04,752 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:06:04,752 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:06:04,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:06:04,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:04,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:06:04,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,753 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,753 INFO L185 Difference]: Start difference. First operand has 400 places, 433 transitions, 13991 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:06:04,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 446 transitions, 14980 flow [2021-03-12 00:06:04,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 446 transitions, 14728 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:04,958 INFO L241 Difference]: Finished difference. Result has 403 places, 432 transitions, 14082 flow [2021-03-12 00:06:04,958 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13747, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14082, PETRI_PLACES=403, PETRI_TRANSITIONS=432} [2021-03-12 00:06:04,958 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 380 predicate places. [2021-03-12 00:06:04,958 INFO L480 AbstractCegarLoop]: Abstraction has has 403 places, 432 transitions, 14082 flow [2021-03-12 00:06:04,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:04,958 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:04,958 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:04,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-12 00:06:04,959 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:04,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:04,959 INFO L82 PathProgramCache]: Analyzing trace with hash -786720005, now seen corresponding path program 78 times [2021-03-12 00:06:04,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:04,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281775592] [2021-03-12 00:06:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:04,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:04,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:04,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:04,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:04,979 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:06:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:04,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:05,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281775592] [2021-03-12 00:06:05,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:05,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:05,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099708343] [2021-03-12 00:06:05,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:05,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:05,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:05,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:05,017 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:05,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 432 transitions, 14082 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:05,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:05,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:05,461 INFO L129 PetriNetUnfolder]: 553/1159 cut-off events. [2021-03-12 00:06:05,461 INFO L130 PetriNetUnfolder]: For 40649/40683 co-relation queries the response was YES. [2021-03-12 00:06:05,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12230 conditions, 1159 events. 553/1159 cut-off events. For 40649/40683 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7695 event pairs, 58 based on Foata normal form. 2/1118 useless extension candidates. Maximal degree in co-relation 12104. Up to 441 conditions per place. [2021-03-12 00:06:05,474 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 254 selfloop transitions, 183 changer transitions 1/444 dead transitions. [2021-03-12 00:06:05,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 444 transitions, 15063 flow [2021-03-12 00:06:05,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:05,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:06:05,475 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:06:05,475 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:06:05,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:06:05,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:05,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:06:05,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,476 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,476 INFO L185 Difference]: Start difference. First operand has 403 places, 432 transitions, 14082 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:06:05,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 444 transitions, 15063 flow [2021-03-12 00:06:05,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 444 transitions, 14700 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:05,670 INFO L241 Difference]: Finished difference. Result has 404 places, 431 transitions, 14059 flow [2021-03-12 00:06:05,671 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13725, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14059, PETRI_PLACES=404, PETRI_TRANSITIONS=431} [2021-03-12 00:06:05,671 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 381 predicate places. [2021-03-12 00:06:05,671 INFO L480 AbstractCegarLoop]: Abstraction has has 404 places, 431 transitions, 14059 flow [2021-03-12 00:06:05,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:05,671 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:05,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-12 00:06:05,671 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:05,671 INFO L82 PathProgramCache]: Analyzing trace with hash -675897485, now seen corresponding path program 79 times [2021-03-12 00:06:05,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:05,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694424696] [2021-03-12 00:06:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:05,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:05,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:05,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:05,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:05,695 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:06:05,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:05,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:05,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:05,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:05,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694424696] [2021-03-12 00:06:05,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:05,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:05,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649506879] [2021-03-12 00:06:05,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:05,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:05,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:05,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:05,734 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:05,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 431 transitions, 14059 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:05,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:05,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:05,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:06,115 INFO L129 PetriNetUnfolder]: 553/1156 cut-off events. [2021-03-12 00:06:06,115 INFO L130 PetriNetUnfolder]: For 40528/40562 co-relation queries the response was YES. [2021-03-12 00:06:06,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12210 conditions, 1156 events. 553/1156 cut-off events. For 40528/40562 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7643 event pairs, 58 based on Foata normal form. 2/1115 useless extension candidates. Maximal degree in co-relation 12085. Up to 441 conditions per place. [2021-03-12 00:06:06,129 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 253 selfloop transitions, 182 changer transitions 1/442 dead transitions. [2021-03-12 00:06:06,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 442 transitions, 15032 flow [2021-03-12 00:06:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:06:06,130 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:06:06,130 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:06:06,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:06:06,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:06,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:06:06,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,131 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,131 INFO L185 Difference]: Start difference. First operand has 404 places, 431 transitions, 14059 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:06:06,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 442 transitions, 15032 flow [2021-03-12 00:06:06,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 442 transitions, 14709 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:06,321 INFO L241 Difference]: Finished difference. Result has 406 places, 430 transitions, 14072 flow [2021-03-12 00:06:06,321 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13740, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14072, PETRI_PLACES=406, PETRI_TRANSITIONS=430} [2021-03-12 00:06:06,321 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 383 predicate places. [2021-03-12 00:06:06,321 INFO L480 AbstractCegarLoop]: Abstraction has has 406 places, 430 transitions, 14072 flow [2021-03-12 00:06:06,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,322 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:06,322 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:06,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-12 00:06:06,322 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:06,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:06,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1269345603, now seen corresponding path program 80 times [2021-03-12 00:06:06,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:06,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857819248] [2021-03-12 00:06:06,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:06,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:06,335 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:06,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:06,341 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-12 00:06:06,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:06,349 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:06,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:06,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857819248] [2021-03-12 00:06:06,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:06,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:06,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182455393] [2021-03-12 00:06:06,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:06,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:06,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:06,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:06,373 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:06,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 430 transitions, 14072 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:06,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:06,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:06,710 INFO L129 PetriNetUnfolder]: 553/1151 cut-off events. [2021-03-12 00:06:06,710 INFO L130 PetriNetUnfolder]: For 40860/40894 co-relation queries the response was YES. [2021-03-12 00:06:06,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12197 conditions, 1151 events. 553/1151 cut-off events. For 40860/40894 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7556 event pairs, 65 based on Foata normal form. 2/1110 useless extension candidates. Maximal degree in co-relation 12073. Up to 441 conditions per place. [2021-03-12 00:06:06,724 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 264 selfloop transitions, 183 changer transitions 1/454 dead transitions. [2021-03-12 00:06:06,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 454 transitions, 15293 flow [2021-03-12 00:06:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:06,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:06,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:06:06,725 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:06:06,725 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:06:06,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:06:06,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:06,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:06:06,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,726 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,726 INFO L185 Difference]: Start difference. First operand has 406 places, 430 transitions, 14072 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:06:06,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 454 transitions, 15293 flow [2021-03-12 00:06:06,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 454 transitions, 14947 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:06,928 INFO L241 Difference]: Finished difference. Result has 409 places, 438 transitions, 14402 flow [2021-03-12 00:06:06,928 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13740, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14402, PETRI_PLACES=409, PETRI_TRANSITIONS=438} [2021-03-12 00:06:06,929 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 386 predicate places. [2021-03-12 00:06:06,929 INFO L480 AbstractCegarLoop]: Abstraction has has 409 places, 438 transitions, 14402 flow [2021-03-12 00:06:06,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,929 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:06,929 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:06,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-12 00:06:06,929 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:06,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:06,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1340569573, now seen corresponding path program 81 times [2021-03-12 00:06:06,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:06,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768593196] [2021-03-12 00:06:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:06,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:06,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:06,943 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:06,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:06,948 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:06,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:06,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:06,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:06,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768593196] [2021-03-12 00:06:06,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:06,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:06,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319472309] [2021-03-12 00:06:06,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:06,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:06,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:06,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:06,974 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:06,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 438 transitions, 14402 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:06,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:06,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:06,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:07,333 INFO L129 PetriNetUnfolder]: 553/1146 cut-off events. [2021-03-12 00:06:07,334 INFO L130 PetriNetUnfolder]: For 41643/41677 co-relation queries the response was YES. [2021-03-12 00:06:07,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12325 conditions, 1146 events. 553/1146 cut-off events. For 41643/41677 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7516 event pairs, 64 based on Foata normal form. 2/1105 useless extension candidates. Maximal degree in co-relation 12201. Up to 441 conditions per place. [2021-03-12 00:06:07,347 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 265 selfloop transitions, 182 changer transitions 1/454 dead transitions. [2021-03-12 00:06:07,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 454 transitions, 15442 flow [2021-03-12 00:06:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:07,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:07,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:06:07,348 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:06:07,348 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:06:07,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:06:07,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:07,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:06:07,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,348 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,348 INFO L185 Difference]: Start difference. First operand has 409 places, 438 transitions, 14402 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:06:07,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 454 transitions, 15442 flow [2021-03-12 00:06:07,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 454 transitions, 15284 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:07,538 INFO L241 Difference]: Finished difference. Result has 412 places, 440 transitions, 14665 flow [2021-03-12 00:06:07,538 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14254, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14665, PETRI_PLACES=412, PETRI_TRANSITIONS=440} [2021-03-12 00:06:07,538 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 389 predicate places. [2021-03-12 00:06:07,538 INFO L480 AbstractCegarLoop]: Abstraction has has 412 places, 440 transitions, 14665 flow [2021-03-12 00:06:07,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,539 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:07,539 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:07,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-12 00:06:07,539 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:07,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:07,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2073915817, now seen corresponding path program 82 times [2021-03-12 00:06:07,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:07,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866259276] [2021-03-12 00:06:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:07,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:07,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:07,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:07,564 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:06:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:07,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:07,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:07,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866259276] [2021-03-12 00:06:07,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:07,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:07,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217180584] [2021-03-12 00:06:07,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:07,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:07,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:07,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:07,595 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:07,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 440 transitions, 14665 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:07,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:07,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:07,966 INFO L129 PetriNetUnfolder]: 553/1139 cut-off events. [2021-03-12 00:06:07,967 INFO L130 PetriNetUnfolder]: For 43419/43453 co-relation queries the response was YES. [2021-03-12 00:06:07,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12422 conditions, 1139 events. 553/1139 cut-off events. For 43419/43453 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7434 event pairs, 67 based on Foata normal form. 2/1098 useless extension candidates. Maximal degree in co-relation 12300. Up to 441 conditions per place. [2021-03-12 00:06:07,980 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 255 selfloop transitions, 190 changer transitions 1/452 dead transitions. [2021-03-12 00:06:07,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 452 transitions, 15653 flow [2021-03-12 00:06:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:06:07,981 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:06:07,981 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:06:07,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:06:07,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:07,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:06:07,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,982 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:07,982 INFO L185 Difference]: Start difference. First operand has 412 places, 440 transitions, 14665 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:06:07,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 452 transitions, 15653 flow [2021-03-12 00:06:08,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 452 transitions, 15226 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-12 00:06:08,174 INFO L241 Difference]: Finished difference. Result has 413 places, 441 transitions, 14654 flow [2021-03-12 00:06:08,174 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14249, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14654, PETRI_PLACES=413, PETRI_TRANSITIONS=441} [2021-03-12 00:06:08,174 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 390 predicate places. [2021-03-12 00:06:08,174 INFO L480 AbstractCegarLoop]: Abstraction has has 413 places, 441 transitions, 14654 flow [2021-03-12 00:06:08,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,174 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:08,174 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:08,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-12 00:06:08,175 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:08,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:08,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1992054789, now seen corresponding path program 83 times [2021-03-12 00:06:08,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:08,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063940249] [2021-03-12 00:06:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:08,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:08,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:08,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:08,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:08,193 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-12 00:06:08,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:08,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:08,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:08,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063940249] [2021-03-12 00:06:08,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:08,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:08,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2983967] [2021-03-12 00:06:08,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:08,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:08,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:08,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:08,229 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:08,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 441 transitions, 14654 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:08,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:08,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:08,609 INFO L129 PetriNetUnfolder]: 553/1136 cut-off events. [2021-03-12 00:06:08,609 INFO L130 PetriNetUnfolder]: For 42612/42646 co-relation queries the response was YES. [2021-03-12 00:06:08,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12394 conditions, 1136 events. 553/1136 cut-off events. For 42612/42646 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7373 event pairs, 62 based on Foata normal form. 2/1095 useless extension candidates. Maximal degree in co-relation 12273. Up to 441 conditions per place. [2021-03-12 00:06:08,623 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 255 selfloop transitions, 191 changer transitions 1/453 dead transitions. [2021-03-12 00:06:08,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 453 transitions, 15646 flow [2021-03-12 00:06:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:06:08,623 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:06:08,623 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:06:08,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:06:08,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:08,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:06:08,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,624 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,624 INFO L185 Difference]: Start difference. First operand has 413 places, 441 transitions, 14654 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:06:08,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 453 transitions, 15646 flow [2021-03-12 00:06:08,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 453 transitions, 15309 flow, removed 33 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:08,823 INFO L241 Difference]: Finished difference. Result has 417 places, 442 transitions, 14738 flow [2021-03-12 00:06:08,823 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14326, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14738, PETRI_PLACES=417, PETRI_TRANSITIONS=442} [2021-03-12 00:06:08,824 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 394 predicate places. [2021-03-12 00:06:08,824 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 442 transitions, 14738 flow [2021-03-12 00:06:08,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,824 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:08,824 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:08,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-12 00:06:08,824 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:08,824 INFO L82 PathProgramCache]: Analyzing trace with hash -356827973, now seen corresponding path program 84 times [2021-03-12 00:06:08,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:08,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13676935] [2021-03-12 00:06:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:08,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:08,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:08,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:08,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:08,844 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:08,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:08,851 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:08,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:08,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:08,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:08,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13676935] [2021-03-12 00:06:08,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:08,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:08,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519583479] [2021-03-12 00:06:08,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:08,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:08,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:08,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:08,871 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:08,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 442 transitions, 14738 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:08,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:08,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:08,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:09,224 INFO L129 PetriNetUnfolder]: 553/1132 cut-off events. [2021-03-12 00:06:09,224 INFO L130 PetriNetUnfolder]: For 42849/42883 co-relation queries the response was YES. [2021-03-12 00:06:09,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12375 conditions, 1132 events. 553/1132 cut-off events. For 42849/42883 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7302 event pairs, 62 based on Foata normal form. 2/1091 useless extension candidates. Maximal degree in co-relation 12254. Up to 441 conditions per place. [2021-03-12 00:06:09,237 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 262 selfloop transitions, 190 changer transitions 1/459 dead transitions. [2021-03-12 00:06:09,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 459 transitions, 15862 flow [2021-03-12 00:06:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:06:09,237 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:06:09,237 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:09,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,238 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,238 INFO L185 Difference]: Start difference. First operand has 417 places, 442 transitions, 14738 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:06:09,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 459 transitions, 15862 flow [2021-03-12 00:06:09,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 459 transitions, 15599 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-12 00:06:09,445 INFO L241 Difference]: Finished difference. Result has 423 places, 447 transitions, 15030 flow [2021-03-12 00:06:09,445 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14491, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15030, PETRI_PLACES=423, PETRI_TRANSITIONS=447} [2021-03-12 00:06:09,445 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 400 predicate places. [2021-03-12 00:06:09,445 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 447 transitions, 15030 flow [2021-03-12 00:06:09,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:09,445 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:09,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-12 00:06:09,445 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:09,446 INFO L82 PathProgramCache]: Analyzing trace with hash -391885253, now seen corresponding path program 85 times [2021-03-12 00:06:09,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:09,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349869090] [2021-03-12 00:06:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:09,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:09,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:09,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:09,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:09,464 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:09,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:09,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:09,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:09,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:09,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349869090] [2021-03-12 00:06:09,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:09,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:09,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117851800] [2021-03-12 00:06:09,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:09,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:09,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:09,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:09,491 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:09,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 447 transitions, 15030 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:09,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:09,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:09,856 INFO L129 PetriNetUnfolder]: 553/1127 cut-off events. [2021-03-12 00:06:09,856 INFO L130 PetriNetUnfolder]: For 43546/43580 co-relation queries the response was YES. [2021-03-12 00:06:09,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12413 conditions, 1127 events. 553/1127 cut-off events. For 43546/43580 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 7262 event pairs, 62 based on Foata normal form. 2/1086 useless extension candidates. Maximal degree in co-relation 12290. Up to 441 conditions per place. [2021-03-12 00:06:09,870 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 260 selfloop transitions, 191 changer transitions 1/458 dead transitions. [2021-03-12 00:06:09,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 458 transitions, 15982 flow [2021-03-12 00:06:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 155 transitions. [2021-03-12 00:06:09,871 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-03-12 00:06:09,871 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:09,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 155 transitions. [2021-03-12 00:06:09,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,872 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:09,872 INFO L185 Difference]: Start difference. First operand has 423 places, 447 transitions, 15030 flow. Second operand 8 states and 155 transitions. [2021-03-12 00:06:09,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 458 transitions, 15982 flow [2021-03-12 00:06:10,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 458 transitions, 15545 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:10,088 INFO L241 Difference]: Finished difference. Result has 425 places, 446 transitions, 14951 flow [2021-03-12 00:06:10,088 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14603, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14951, PETRI_PLACES=425, PETRI_TRANSITIONS=446} [2021-03-12 00:06:10,089 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 402 predicate places. [2021-03-12 00:06:10,089 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 446 transitions, 14951 flow [2021-03-12 00:06:10,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,089 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:10,089 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:10,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-12 00:06:10,089 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:10,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:10,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1257452683, now seen corresponding path program 86 times [2021-03-12 00:06:10,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:10,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789421747] [2021-03-12 00:06:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:10,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:10,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:10,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:10,113 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:10,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:10,118 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:10,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:10,125 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:10,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:10,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:10,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789421747] [2021-03-12 00:06:10,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:10,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:10,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202552543] [2021-03-12 00:06:10,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:10,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:10,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:10,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:10,148 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:10,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 446 transitions, 14951 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:10,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:10,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:10,504 INFO L129 PetriNetUnfolder]: 553/1126 cut-off events. [2021-03-12 00:06:10,504 INFO L130 PetriNetUnfolder]: For 43136/43170 co-relation queries the response was YES. [2021-03-12 00:06:10,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 1126 events. 553/1126 cut-off events. For 43136/43170 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7261 event pairs, 63 based on Foata normal form. 2/1085 useless extension candidates. Maximal degree in co-relation 12243. Up to 441 conditions per place. [2021-03-12 00:06:10,518 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 265 selfloop transitions, 186 changer transitions 1/458 dead transitions. [2021-03-12 00:06:10,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 458 transitions, 15933 flow [2021-03-12 00:06:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:10,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:06:10,521 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:06:10,521 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:06:10,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:06:10,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:10,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:06:10,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,522 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,522 INFO L185 Difference]: Start difference. First operand has 425 places, 446 transitions, 14951 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:06:10,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 458 transitions, 15933 flow [2021-03-12 00:06:10,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 458 transitions, 15611 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:10,734 INFO L241 Difference]: Finished difference. Result has 427 places, 446 transitions, 15014 flow [2021-03-12 00:06:10,735 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14636, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15014, PETRI_PLACES=427, PETRI_TRANSITIONS=446} [2021-03-12 00:06:10,735 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 404 predicate places. [2021-03-12 00:06:10,735 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 446 transitions, 15014 flow [2021-03-12 00:06:10,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,735 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:10,735 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:10,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-12 00:06:10,735 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:10,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:10,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1133180259, now seen corresponding path program 87 times [2021-03-12 00:06:10,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:10,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897134414] [2021-03-12 00:06:10,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:10,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:10,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:10,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:10,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:10,762 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:10,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:10,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:10,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:10,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897134414] [2021-03-12 00:06:10,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:10,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:10,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890646985] [2021-03-12 00:06:10,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:10,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:10,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:10,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:10,787 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:10,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 446 transitions, 15014 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:10,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:10,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:10,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:11,144 INFO L129 PetriNetUnfolder]: 553/1121 cut-off events. [2021-03-12 00:06:11,144 INFO L130 PetriNetUnfolder]: For 43307/43341 co-relation queries the response was YES. [2021-03-12 00:06:11,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12384 conditions, 1121 events. 553/1121 cut-off events. For 43307/43341 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7214 event pairs, 63 based on Foata normal form. 2/1080 useless extension candidates. Maximal degree in co-relation 12261. Up to 441 conditions per place. [2021-03-12 00:06:11,158 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 258 selfloop transitions, 191 changer transitions 1/456 dead transitions. [2021-03-12 00:06:11,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 456 transitions, 15958 flow [2021-03-12 00:06:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 154 transitions. [2021-03-12 00:06:11,159 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-03-12 00:06:11,159 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 154 transitions. [2021-03-12 00:06:11,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 154 transitions. [2021-03-12 00:06:11,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:11,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 154 transitions. [2021-03-12 00:06:11,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,160 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,160 INFO L185 Difference]: Start difference. First operand has 427 places, 446 transitions, 15014 flow. Second operand 8 states and 154 transitions. [2021-03-12 00:06:11,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 456 transitions, 15958 flow [2021-03-12 00:06:11,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 456 transitions, 15673 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:11,354 INFO L241 Difference]: Finished difference. Result has 430 places, 445 transitions, 15086 flow [2021-03-12 00:06:11,354 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14737, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15086, PETRI_PLACES=430, PETRI_TRANSITIONS=445} [2021-03-12 00:06:11,354 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 407 predicate places. [2021-03-12 00:06:11,354 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 445 transitions, 15086 flow [2021-03-12 00:06:11,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,354 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:11,354 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:11,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-12 00:06:11,354 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:11,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1216297149, now seen corresponding path program 88 times [2021-03-12 00:06:11,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:11,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65446646] [2021-03-12 00:06:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:11,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:11,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:11,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:11,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:11,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:11,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:11,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:11,374 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:11,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:11,381 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:11,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:11,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:11,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:11,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65446646] [2021-03-12 00:06:11,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:11,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:11,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777835597] [2021-03-12 00:06:11,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:11,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:11,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:11,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:11,408 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:11,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 445 transitions, 15086 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:11,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:11,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:11,759 INFO L129 PetriNetUnfolder]: 553/1115 cut-off events. [2021-03-12 00:06:11,759 INFO L130 PetriNetUnfolder]: For 44208/44242 co-relation queries the response was YES. [2021-03-12 00:06:11,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12387 conditions, 1115 events. 553/1115 cut-off events. For 44208/44242 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7120 event pairs, 61 based on Foata normal form. 2/1074 useless extension candidates. Maximal degree in co-relation 12264. Up to 441 conditions per place. [2021-03-12 00:06:11,773 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 258 selfloop transitions, 189 changer transitions 1/454 dead transitions. [2021-03-12 00:06:11,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 454 transitions, 16022 flow [2021-03-12 00:06:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:11,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2021-03-12 00:06:11,774 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5464285714285714 [2021-03-12 00:06:11,774 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 153 transitions. [2021-03-12 00:06:11,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 153 transitions. [2021-03-12 00:06:11,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:11,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 153 transitions. [2021-03-12 00:06:11,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,775 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,775 INFO L185 Difference]: Start difference. First operand has 430 places, 445 transitions, 15086 flow. Second operand 8 states and 153 transitions. [2021-03-12 00:06:11,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 454 transitions, 16022 flow [2021-03-12 00:06:11,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 454 transitions, 15672 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:11,992 INFO L241 Difference]: Finished difference. Result has 431 places, 444 transitions, 15087 flow [2021-03-12 00:06:11,993 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14742, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15087, PETRI_PLACES=431, PETRI_TRANSITIONS=444} [2021-03-12 00:06:11,993 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 408 predicate places. [2021-03-12 00:06:11,993 INFO L480 AbstractCegarLoop]: Abstraction has has 431 places, 444 transitions, 15087 flow [2021-03-12 00:06:11,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:11,993 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:11,993 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:11,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-12 00:06:11,993 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:11,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:11,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1339362037, now seen corresponding path program 89 times [2021-03-12 00:06:11,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:11,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953554079] [2021-03-12 00:06:11,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:12,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:12,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:12,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:12,007 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:12,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:12,013 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:12,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:12,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:12,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953554079] [2021-03-12 00:06:12,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:12,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:12,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34037507] [2021-03-12 00:06:12,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:12,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:12,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:12,038 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:12,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 444 transitions, 15087 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:12,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:12,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:12,431 INFO L129 PetriNetUnfolder]: 553/1110 cut-off events. [2021-03-12 00:06:12,431 INFO L130 PetriNetUnfolder]: For 44274/44308 co-relation queries the response was YES. [2021-03-12 00:06:12,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12365 conditions, 1110 events. 553/1110 cut-off events. For 44274/44308 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7075 event pairs, 61 based on Foata normal form. 2/1069 useless extension candidates. Maximal degree in co-relation 12244. Up to 441 conditions per place. [2021-03-12 00:06:12,445 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 255 selfloop transitions, 193 changer transitions 1/455 dead transitions. [2021-03-12 00:06:12,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 455 transitions, 16035 flow [2021-03-12 00:06:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2021-03-12 00:06:12,446 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2021-03-12 00:06:12,446 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 152 transitions. [2021-03-12 00:06:12,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 152 transitions. [2021-03-12 00:06:12,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:12,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 152 transitions. [2021-03-12 00:06:12,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,446 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,446 INFO L185 Difference]: Start difference. First operand has 431 places, 444 transitions, 15087 flow. Second operand 8 states and 152 transitions. [2021-03-12 00:06:12,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 455 transitions, 16035 flow [2021-03-12 00:06:12,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 455 transitions, 15650 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-12 00:06:12,644 INFO L241 Difference]: Finished difference. Result has 431 places, 443 transitions, 15061 flow [2021-03-12 00:06:12,644 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14708, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15061, PETRI_PLACES=431, PETRI_TRANSITIONS=443} [2021-03-12 00:06:12,644 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 408 predicate places. [2021-03-12 00:06:12,644 INFO L480 AbstractCegarLoop]: Abstraction has has 431 places, 443 transitions, 15061 flow [2021-03-12 00:06:12,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,644 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:12,644 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:12,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-12 00:06:12,644 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:12,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1304304757, now seen corresponding path program 90 times [2021-03-12 00:06:12,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:12,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271624978] [2021-03-12 00:06:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:12,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:12,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:12,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:06:12,665 INFO L142 QuantifierPusher]: treesize reduction 3, result has 72.7 percent of original size [2021-03-12 00:06:12,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:12,671 INFO L142 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-03-12 00:06:12,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:12,679 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-12 00:06:12,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:06:12,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:12,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:12,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271624978] [2021-03-12 00:06:12,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:12,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:12,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733424684] [2021-03-12 00:06:12,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:12,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:12,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:12,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:12,700 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2021-03-12 00:06:12,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 443 transitions, 15061 flow. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:12,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:12,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2021-03-12 00:06:12,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:13,054 INFO L129 PetriNetUnfolder]: 553/1107 cut-off events. [2021-03-12 00:06:13,054 INFO L130 PetriNetUnfolder]: For 44014/44048 co-relation queries the response was YES. [2021-03-12 00:06:13,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12347 conditions, 1107 events. 553/1107 cut-off events. For 44014/44048 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 7028 event pairs, 61 based on Foata normal form. 2/1066 useless extension candidates. Maximal degree in co-relation 12228. Up to 441 conditions per place. [2021-03-12 00:06:13,066 INFO L132 encePairwiseOnDemand]: 25/35 looper letters, 254 selfloop transitions, 192 changer transitions 1/453 dead transitions. [2021-03-12 00:06:13,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 453 transitions, 16001 flow [2021-03-12 00:06:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2021-03-12 00:06:13,067 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2021-03-12 00:06:13,067 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 151 transitions. [2021-03-12 00:06:13,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 151 transitions. [2021-03-12 00:06:13,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:13,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 151 transitions. [2021-03-12 00:06:13,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.875) internal successors, (151), 8 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:13,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:13,068 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:13,068 INFO L185 Difference]: Start difference. First operand has 431 places, 443 transitions, 15061 flow. Second operand 8 states and 151 transitions. [2021-03-12 00:06:13,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 453 transitions, 16001 flow [2021-03-12 00:06:13,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 453 transitions, 15572 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:13,263 INFO L241 Difference]: Finished difference. Result has 433 places, 442 transitions, 14989 flow [2021-03-12 00:06:13,263 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14636, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14989, PETRI_PLACES=433, PETRI_TRANSITIONS=442} [2021-03-12 00:06:13,263 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 410 predicate places. [2021-03-12 00:06:13,263 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 442 transitions, 14989 flow [2021-03-12 00:06:13,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:13,264 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:13,264 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:13,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-12 00:06:13,264 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:13,264 INFO L82 PathProgramCache]: Analyzing trace with hash 601038763, now seen corresponding path program 1 times [2021-03-12 00:06:13,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:13,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62441532] [2021-03-12 00:06:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:13,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:13,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:13,297 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:06:13,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:13,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:13,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62441532] [2021-03-12 00:06:13,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203182813] [2021-03-12 00:06:13,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:13,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:06:13,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:13,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:13,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:13,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:13,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:13,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:13,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:13,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,435 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:13,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:13,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:13,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:13,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:13,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,464 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:13,479 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,486 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:13,496 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:13,500 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:13,500 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:13,501 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:06:13,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:13,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:13,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-12 00:06:13,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112189783] [2021-03-12 00:06:13,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:13,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:13,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:13,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:13,535 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:06:13,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 442 transitions, 14989 flow. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:13,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:13,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:06:13,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:14,255 INFO L129 PetriNetUnfolder]: 603/1269 cut-off events. [2021-03-12 00:06:14,255 INFO L130 PetriNetUnfolder]: For 46542/46554 co-relation queries the response was YES. [2021-03-12 00:06:14,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13235 conditions, 1269 events. 603/1269 cut-off events. For 46542/46554 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 8682 event pairs, 68 based on Foata normal form. 11/1196 useless extension candidates. Maximal degree in co-relation 13116. Up to 424 conditions per place. [2021-03-12 00:06:14,288 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 266 selfloop transitions, 168 changer transitions 16/487 dead transitions. [2021-03-12 00:06:14,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 487 transitions, 16722 flow [2021-03-12 00:06:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2021-03-12 00:06:14,289 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-03-12 00:06:14,289 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 150 transitions. [2021-03-12 00:06:14,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 150 transitions. [2021-03-12 00:06:14,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:14,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 150 transitions. [2021-03-12 00:06:14,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:14,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:14,289 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:14,290 INFO L185 Difference]: Start difference. First operand has 433 places, 442 transitions, 14989 flow. Second operand 6 states and 150 transitions. [2021-03-12 00:06:14,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 487 transitions, 16722 flow [2021-03-12 00:06:14,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 487 transitions, 16444 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:14,677 INFO L241 Difference]: Finished difference. Result has 435 places, 448 transitions, 15243 flow [2021-03-12 00:06:14,678 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14733, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=15243, PETRI_PLACES=435, PETRI_TRANSITIONS=448} [2021-03-12 00:06:14,678 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 412 predicate places. [2021-03-12 00:06:14,678 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 448 transitions, 15243 flow [2021-03-12 00:06:14,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:14,678 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:14,679 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:14,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-03-12 00:06:14,899 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:14,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:14,899 INFO L82 PathProgramCache]: Analyzing trace with hash 185162948, now seen corresponding path program 1 times [2021-03-12 00:06:14,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:14,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169135599] [2021-03-12 00:06:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:14,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:14,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:14,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:14,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:14,927 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:14,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:14,945 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:14,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:14,966 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:06:14,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:14,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:14,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:14,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169135599] [2021-03-12 00:06:14,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640901671] [2021-03-12 00:06:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:15,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:06:15,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:15,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:15,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:15,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:15,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:15,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:15,028 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:06:15,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:15,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:15,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:15,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:15,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,047 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:15,051 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,054 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:15,055 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:15,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:15,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:15,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:15,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:15,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:15,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:15,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,095 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:15,096 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:15,097 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:06:15,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:15,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:15,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-12 00:06:15,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458544142] [2021-03-12 00:06:15,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:15,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:15,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:15,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:15,118 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:06:15,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 448 transitions, 15243 flow. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:15,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:15,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:06:15,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:15,675 INFO L129 PetriNetUnfolder]: 596/1252 cut-off events. [2021-03-12 00:06:15,676 INFO L130 PetriNetUnfolder]: For 46894/46925 co-relation queries the response was YES. [2021-03-12 00:06:15,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13163 conditions, 1252 events. 596/1252 cut-off events. For 46894/46925 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 8568 event pairs, 65 based on Foata normal form. 17/1198 useless extension candidates. Maximal degree in co-relation 13044. Up to 424 conditions per place. [2021-03-12 00:06:15,700 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 243 selfloop transitions, 155 changer transitions 35/470 dead transitions. [2021-03-12 00:06:15,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 470 transitions, 16374 flow [2021-03-12 00:06:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2021-03-12 00:06:15,701 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2021-03-12 00:06:15,701 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 146 transitions. [2021-03-12 00:06:15,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 146 transitions. [2021-03-12 00:06:15,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:15,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 146 transitions. [2021-03-12 00:06:15,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:15,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:15,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:15,702 INFO L185 Difference]: Start difference. First operand has 435 places, 448 transitions, 15243 flow. Second operand 6 states and 146 transitions. [2021-03-12 00:06:15,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 470 transitions, 16374 flow [2021-03-12 00:06:16,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 470 transitions, 15926 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:16,089 INFO L241 Difference]: Finished difference. Result has 435 places, 423 transitions, 13855 flow [2021-03-12 00:06:16,089 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14803, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13855, PETRI_PLACES=435, PETRI_TRANSITIONS=423} [2021-03-12 00:06:16,089 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 412 predicate places. [2021-03-12 00:06:16,090 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 423 transitions, 13855 flow [2021-03-12 00:06:16,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:16,090 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:16,090 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:16,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:16,303 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:16,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:16,304 INFO L82 PathProgramCache]: Analyzing trace with hash -336915544, now seen corresponding path program 1 times [2021-03-12 00:06:16,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:16,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578523325] [2021-03-12 00:06:16,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:16,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:16,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:16,337 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-03-12 00:06:16,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:16,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:16,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:16,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:16,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578523325] [2021-03-12 00:06:16,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352991451] [2021-03-12 00:06:16,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:16,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:16,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:16,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:16,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:16,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:16,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:16,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:16,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:16,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:16,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:16,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:16,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,451 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:06:16,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:16,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:06:16,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:16,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:16,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,477 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:16,478 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:16,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:16,483 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:16,484 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,485 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:16,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:16,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:16,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:16,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:16,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:16,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:16,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:16,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:16,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:16,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:16,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:16,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:16,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:06:16,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140254465] [2021-03-12 00:06:16,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:16,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:16,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:16,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:16,545 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:16,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 423 transitions, 13855 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:16,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:16,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:16,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:17,164 INFO L129 PetriNetUnfolder]: 638/1318 cut-off events. [2021-03-12 00:06:17,164 INFO L130 PetriNetUnfolder]: For 45914/45923 co-relation queries the response was YES. [2021-03-12 00:06:17,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13198 conditions, 1318 events. 638/1318 cut-off events. For 45914/45923 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 8874 event pairs, 54 based on Foata normal form. 5/1262 useless extension candidates. Maximal degree in co-relation 13079. Up to 549 conditions per place. [2021-03-12 00:06:17,189 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 355 selfloop transitions, 129 changer transitions 3/493 dead transitions. [2021-03-12 00:06:17,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 493 transitions, 16146 flow [2021-03-12 00:06:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:06:17,190 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:06:17,190 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:06:17,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:06:17,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:17,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:06:17,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:17,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:17,191 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:17,191 INFO L185 Difference]: Start difference. First operand has 435 places, 423 transitions, 13855 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:06:17,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 493 transitions, 16146 flow [2021-03-12 00:06:17,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 493 transitions, 15760 flow, removed 30 selfloop flow, removed 20 redundant places. [2021-03-12 00:06:17,489 INFO L241 Difference]: Finished difference. Result has 415 places, 437 transitions, 14112 flow [2021-03-12 00:06:17,490 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13473, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14112, PETRI_PLACES=415, PETRI_TRANSITIONS=437} [2021-03-12 00:06:17,490 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 392 predicate places. [2021-03-12 00:06:17,490 INFO L480 AbstractCegarLoop]: Abstraction has has 415 places, 437 transitions, 14112 flow [2021-03-12 00:06:17,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:17,490 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:17,490 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:17,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-03-12 00:06:17,712 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:17,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1697529954, now seen corresponding path program 2 times [2021-03-12 00:06:17,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:17,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132700495] [2021-03-12 00:06:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:17,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:17,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:17,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:17,736 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,745 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:17,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:17,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:17,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132700495] [2021-03-12 00:06:17,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844334879] [2021-03-12 00:06:17,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:17,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:17,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:17,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:17,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:17,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:17,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:17,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:17,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:17,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:17,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:17,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:17,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:17,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:17,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:17,899 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:17,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:17,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:17,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:17,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:17,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,908 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:17,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,919 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:17,920 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:17,922 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:17,923 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:17,923 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:06:17,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:17,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:17,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:17,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:17,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210588318] [2021-03-12 00:06:17,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:17,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:17,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:17,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:17,940 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:17,940 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 437 transitions, 14112 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:17,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:17,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:17,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:18,539 INFO L129 PetriNetUnfolder]: 700/1461 cut-off events. [2021-03-12 00:06:18,540 INFO L130 PetriNetUnfolder]: For 49157/49189 co-relation queries the response was YES. [2021-03-12 00:06:18,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14189 conditions, 1461 events. 700/1461 cut-off events. For 49157/49189 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 10040 event pairs, 88 based on Foata normal form. 8/1408 useless extension candidates. Maximal degree in co-relation 14079. Up to 771 conditions per place. [2021-03-12 00:06:18,562 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 352 selfloop transitions, 144 changer transitions 4/506 dead transitions. [2021-03-12 00:06:18,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 506 transitions, 16467 flow [2021-03-12 00:06:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:06:18,563 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:06:18,563 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:06:18,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:06:18,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:18,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:06:18,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:18,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:18,564 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:18,564 INFO L185 Difference]: Start difference. First operand has 415 places, 437 transitions, 14112 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:06:18,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 506 transitions, 16467 flow [2021-03-12 00:06:18,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 506 transitions, 16079 flow, removed 49 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:18,856 INFO L241 Difference]: Finished difference. Result has 421 places, 452 transitions, 14544 flow [2021-03-12 00:06:18,856 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13738, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14544, PETRI_PLACES=421, PETRI_TRANSITIONS=452} [2021-03-12 00:06:18,856 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 398 predicate places. [2021-03-12 00:06:18,856 INFO L480 AbstractCegarLoop]: Abstraction has has 421 places, 452 transitions, 14544 flow [2021-03-12 00:06:18,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:18,856 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:18,857 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:19,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:19,071 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:19,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1525238738, now seen corresponding path program 3 times [2021-03-12 00:06:19,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:19,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651440856] [2021-03-12 00:06:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:19,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:19,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:19,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:19,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:19,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:19,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:19,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651440856] [2021-03-12 00:06:19,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310075514] [2021-03-12 00:06:19,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:19,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:06:19,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:19,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-12 00:06:19,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:19,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:19,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:19,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:19,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:19,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:19,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:19,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:19,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:19,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:19,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:19,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:19,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:19,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:19,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:19,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:19,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:19,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:19,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:19,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:19,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:19,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:19,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:19,228 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:19,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:19,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:19,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:19,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:19,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,238 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:19,239 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:19,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:19,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,243 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:19,247 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:19,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:19,251 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:19,252 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:19,252 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:06:19,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:19,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:19,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:19,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:19,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371764702] [2021-03-12 00:06:19,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:19,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:19,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:19,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:19,262 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:19,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 452 transitions, 14544 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:19,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:19,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:19,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:19,835 INFO L129 PetriNetUnfolder]: 696/1454 cut-off events. [2021-03-12 00:06:19,835 INFO L130 PetriNetUnfolder]: For 49486/49518 co-relation queries the response was YES. [2021-03-12 00:06:19,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14345 conditions, 1454 events. 696/1454 cut-off events. For 49486/49518 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 10038 event pairs, 86 based on Foata normal form. 12/1405 useless extension candidates. Maximal degree in co-relation 14232. Up to 549 conditions per place. [2021-03-12 00:06:19,856 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 369 selfloop transitions, 129 changer transitions 4/508 dead transitions. [2021-03-12 00:06:19,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 508 transitions, 16597 flow [2021-03-12 00:06:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:19,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-03-12 00:06:19,857 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-12 00:06:19,857 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-03-12 00:06:19,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-03-12 00:06:19,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:19,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-03-12 00:06:19,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:19,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:19,858 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:19,858 INFO L185 Difference]: Start difference. First operand has 421 places, 452 transitions, 14544 flow. Second operand 8 states and 175 transitions. [2021-03-12 00:06:19,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 508 transitions, 16597 flow [2021-03-12 00:06:20,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 508 transitions, 16431 flow, removed 22 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:20,165 INFO L241 Difference]: Finished difference. Result has 426 places, 456 transitions, 14830 flow [2021-03-12 00:06:20,166 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14404, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14830, PETRI_PLACES=426, PETRI_TRANSITIONS=456} [2021-03-12 00:06:20,166 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 403 predicate places. [2021-03-12 00:06:20,166 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 456 transitions, 14830 flow [2021-03-12 00:06:20,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:20,166 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:20,166 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:20,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:20,379 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:20,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:20,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1057208799, now seen corresponding path program 2 times [2021-03-12 00:06:20,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:20,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779010967] [2021-03-12 00:06:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:20,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:20,395 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:20,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:20,410 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:20,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:20,428 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:06:20,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:20,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:20,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:20,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779010967] [2021-03-12 00:06:20,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:20,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-12 00:06:20,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616180797] [2021-03-12 00:06:20,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:06:20,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:20,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:06:20,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:06:20,440 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:06:20,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 456 transitions, 14830 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:20,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:20,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:06:20,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:20,815 INFO L129 PetriNetUnfolder]: 684/1480 cut-off events. [2021-03-12 00:06:20,815 INFO L130 PetriNetUnfolder]: For 50987/50997 co-relation queries the response was YES. [2021-03-12 00:06:20,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14444 conditions, 1480 events. 684/1480 cut-off events. For 50987/50997 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 10646 event pairs, 96 based on Foata normal form. 9/1412 useless extension candidates. Maximal degree in co-relation 14329. Up to 636 conditions per place. [2021-03-12 00:06:20,836 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 255 selfloop transitions, 153 changer transitions 38/477 dead transitions. [2021-03-12 00:06:20,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 477 transitions, 15966 flow [2021-03-12 00:06:20,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2021-03-12 00:06:20,837 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2021-03-12 00:06:20,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 146 transitions. [2021-03-12 00:06:20,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 146 transitions. [2021-03-12 00:06:20,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:20,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 146 transitions. [2021-03-12 00:06:20,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:20,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:20,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:20,838 INFO L185 Difference]: Start difference. First operand has 426 places, 456 transitions, 14830 flow. Second operand 6 states and 146 transitions. [2021-03-12 00:06:20,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 477 transitions, 15966 flow [2021-03-12 00:06:21,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 477 transitions, 15700 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:21,166 INFO L241 Difference]: Finished difference. Result has 427 places, 427 transitions, 13446 flow [2021-03-12 00:06:21,167 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14568, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13446, PETRI_PLACES=427, PETRI_TRANSITIONS=427} [2021-03-12 00:06:21,167 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 404 predicate places. [2021-03-12 00:06:21,167 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 427 transitions, 13446 flow [2021-03-12 00:06:21,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,167 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:21,167 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:21,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-12 00:06:21,167 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1482202672, now seen corresponding path program 2 times [2021-03-12 00:06:21,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:21,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234337435] [2021-03-12 00:06:21,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:21,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:21,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:21,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234337435] [2021-03-12 00:06:21,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018635611] [2021-03-12 00:06:21,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:21,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:21,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:21,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:06:21,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:21,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:21,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:21,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:21,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:21,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:21,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:21,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,265 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:21,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:21,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:21,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:21,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:06:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,272 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:21,273 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:21,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,278 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:21,280 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:21,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:21,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:21,284 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:21,285 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:06:21,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:21,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:21,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:21,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-12 00:06:21,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197595088] [2021-03-12 00:06:21,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:06:21,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:21,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:06:21,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:06:21,302 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:06:21,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 427 transitions, 13446 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:21,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:06:21,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:21,615 INFO L129 PetriNetUnfolder]: 463/1267 cut-off events. [2021-03-12 00:06:21,615 INFO L130 PetriNetUnfolder]: For 44081/44116 co-relation queries the response was YES. [2021-03-12 00:06:21,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11950 conditions, 1267 events. 463/1267 cut-off events. For 44081/44116 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 10500 event pairs, 33 based on Foata normal form. 12/1230 useless extension candidates. Maximal degree in co-relation 11835. Up to 388 conditions per place. [2021-03-12 00:06:21,631 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 148 selfloop transitions, 154 changer transitions 4/449 dead transitions. [2021-03-12 00:06:21,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 449 transitions, 14413 flow [2021-03-12 00:06:21,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2021-03-12 00:06:21,632 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7523809523809524 [2021-03-12 00:06:21,632 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 158 transitions. [2021-03-12 00:06:21,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 158 transitions. [2021-03-12 00:06:21,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:21,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 158 transitions. [2021-03-12 00:06:21,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,633 INFO L185 Difference]: Start difference. First operand has 427 places, 427 transitions, 13446 flow. Second operand 6 states and 158 transitions. [2021-03-12 00:06:21,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 449 transitions, 14413 flow [2021-03-12 00:06:21,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 449 transitions, 14017 flow, removed 26 selfloop flow, removed 11 redundant places. [2021-03-12 00:06:21,852 INFO L241 Difference]: Finished difference. Result has 410 places, 436 transitions, 13603 flow [2021-03-12 00:06:21,853 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13082, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13603, PETRI_PLACES=410, PETRI_TRANSITIONS=436} [2021-03-12 00:06:21,853 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 387 predicate places. [2021-03-12 00:06:21,853 INFO L480 AbstractCegarLoop]: Abstraction has has 410 places, 436 transitions, 13603 flow [2021-03-12 00:06:21,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:21,853 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:21,853 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:22,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-03-12 00:06:22,076 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:22,076 INFO L82 PathProgramCache]: Analyzing trace with hash -743228670, now seen corresponding path program 4 times [2021-03-12 00:06:22,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:22,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67149592] [2021-03-12 00:06:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:22,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:22,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:22,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:22,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:22,109 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-12 00:06:22,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:22,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67149592] [2021-03-12 00:06:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153648529] [2021-03-12 00:06:22,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:22,166 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:22,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:22,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:22,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:22,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:22,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:22,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:22,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:22,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:22,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:22,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:22,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:22,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:22,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:22,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:22,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:22,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:22,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,215 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:22,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:22,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:22,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:22,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,220 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:22,221 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:22,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:22,223 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:22,224 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,224 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:22,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:22,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:22,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:22,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:22,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:22,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:22,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:22,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643884158] [2021-03-12 00:06:22,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:22,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:22,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:22,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:22,251 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:22,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 436 transitions, 13603 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:22,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:22,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:22,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:22,724 INFO L129 PetriNetUnfolder]: 747/1583 cut-off events. [2021-03-12 00:06:22,725 INFO L130 PetriNetUnfolder]: For 49002/49026 co-relation queries the response was YES. [2021-03-12 00:06:22,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14746 conditions, 1583 events. 747/1583 cut-off events. For 49002/49026 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 11297 event pairs, 104 based on Foata normal form. 10/1522 useless extension candidates. Maximal degree in co-relation 14635. Up to 634 conditions per place. [2021-03-12 00:06:22,742 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 339 selfloop transitions, 135 changer transitions 6/486 dead transitions. [2021-03-12 00:06:22,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 486 transitions, 15432 flow [2021-03-12 00:06:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:22,743 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:22,743 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:22,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:22,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:22,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:22,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:22,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:22,743 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:22,743 INFO L185 Difference]: Start difference. First operand has 410 places, 436 transitions, 13603 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:22,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 486 transitions, 15432 flow [2021-03-12 00:06:22,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 486 transitions, 14865 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:22,941 INFO L241 Difference]: Finished difference. Result has 413 places, 433 transitions, 13243 flow [2021-03-12 00:06:22,941 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13043, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13243, PETRI_PLACES=413, PETRI_TRANSITIONS=433} [2021-03-12 00:06:22,941 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 390 predicate places. [2021-03-12 00:06:22,941 INFO L480 AbstractCegarLoop]: Abstraction has has 413 places, 433 transitions, 13243 flow [2021-03-12 00:06:22,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:22,942 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:22,942 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:23,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-03-12 00:06:23,142 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:23,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:23,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1227404104, now seen corresponding path program 5 times [2021-03-12 00:06:23,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:23,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740771651] [2021-03-12 00:06:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:23,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:23,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:23,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:23,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:23,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:23,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:23,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740771651] [2021-03-12 00:06:23,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737102484] [2021-03-12 00:06:23,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:23,209 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:23,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:23,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:23,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:23,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:23,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:23,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:23,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:23,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:23,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:23,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,216 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:23,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:23,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:23,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:23,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,240 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:06:23,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:06:23,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:23,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:23,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,249 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:23,249 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:23,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:23,252 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:23,252 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,253 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:23,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:23,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:23,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:23,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:23,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:23,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:23,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:23,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:23,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:23,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:23,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:23,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:23,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134337002] [2021-03-12 00:06:23,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:23,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:23,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:23,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:23,294 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:23,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 433 transitions, 13243 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:23,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:23,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:23,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:23,771 INFO L129 PetriNetUnfolder]: 811/1727 cut-off events. [2021-03-12 00:06:23,771 INFO L130 PetriNetUnfolder]: For 50327/50351 co-relation queries the response was YES. [2021-03-12 00:06:23,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15668 conditions, 1727 events. 811/1727 cut-off events. For 50327/50351 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 12584 event pairs, 72 based on Foata normal form. 9/1663 useless extension candidates. Maximal degree in co-relation 15556. Up to 600 conditions per place. [2021-03-12 00:06:23,791 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 356 selfloop transitions, 148 changer transitions 3/513 dead transitions. [2021-03-12 00:06:23,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 513 transitions, 15901 flow [2021-03-12 00:06:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:23,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:06:23,792 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:06:23,792 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:06:23,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:06:23,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:23,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:06:23,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:23,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:23,793 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:23,793 INFO L185 Difference]: Start difference. First operand has 413 places, 433 transitions, 13243 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:06:23,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 513 transitions, 15901 flow [2021-03-12 00:06:23,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 513 transitions, 15619 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:24,007 INFO L241 Difference]: Finished difference. Result has 416 places, 453 transitions, 13942 flow [2021-03-12 00:06:24,007 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=12979, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13942, PETRI_PLACES=416, PETRI_TRANSITIONS=453} [2021-03-12 00:06:24,008 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 393 predicate places. [2021-03-12 00:06:24,008 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 453 transitions, 13942 flow [2021-03-12 00:06:24,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:24,008 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:24,008 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:24,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:24,215 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:24,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:24,215 INFO L82 PathProgramCache]: Analyzing trace with hash -476378864, now seen corresponding path program 6 times [2021-03-12 00:06:24,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:24,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998874799] [2021-03-12 00:06:24,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:24,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:24,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:24,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:24,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998874799] [2021-03-12 00:06:24,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965790083] [2021-03-12 00:06:24,267 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:24,287 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:06:24,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:24,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:24,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:24,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:24,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:24,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:24,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:24,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:24,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:24,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:24,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:24,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:24,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:24,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:24,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:24,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,323 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:24,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:24,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:24,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:24,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,328 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:24,329 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:24,331 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:24,332 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,332 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:24,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:24,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:24,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:24,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:24,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:24,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:24,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:24,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:24,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:24,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:24,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:06:24,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034643655] [2021-03-12 00:06:24,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:24,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:24,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:24,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:24,359 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:24,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 453 transitions, 13942 flow. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:24,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:24,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:24,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:24,846 INFO L129 PetriNetUnfolder]: 809/1724 cut-off events. [2021-03-12 00:06:24,846 INFO L130 PetriNetUnfolder]: For 52420/52444 co-relation queries the response was YES. [2021-03-12 00:06:24,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15744 conditions, 1724 events. 809/1724 cut-off events. For 52420/52444 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 12542 event pairs, 70 based on Foata normal form. 9/1660 useless extension candidates. Maximal degree in co-relation 15630. Up to 600 conditions per place. [2021-03-12 00:06:24,906 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 359 selfloop transitions, 143 changer transitions 3/511 dead transitions. [2021-03-12 00:06:24,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 511 transitions, 16001 flow [2021-03-12 00:06:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-03-12 00:06:24,906 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-12 00:06:24,906 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-03-12 00:06:24,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-03-12 00:06:24,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:24,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-03-12 00:06:24,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:24,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:24,907 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:24,907 INFO L185 Difference]: Start difference. First operand has 416 places, 453 transitions, 13942 flow. Second operand 8 states and 175 transitions. [2021-03-12 00:06:24,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 511 transitions, 16001 flow [2021-03-12 00:06:25,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 511 transitions, 15476 flow, removed 91 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:25,124 INFO L241 Difference]: Finished difference. Result has 419 places, 457 transitions, 13862 flow [2021-03-12 00:06:25,125 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13429, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13862, PETRI_PLACES=419, PETRI_TRANSITIONS=457} [2021-03-12 00:06:25,125 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 396 predicate places. [2021-03-12 00:06:25,125 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 457 transitions, 13862 flow [2021-03-12 00:06:25,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:25,125 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:25,125 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:25,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2021-03-12 00:06:25,339 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:25,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1307629640, now seen corresponding path program 7 times [2021-03-12 00:06:25,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:25,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950359390] [2021-03-12 00:06:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:25,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:25,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:25,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:25,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:25,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:25,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950359390] [2021-03-12 00:06:25,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193762967] [2021-03-12 00:06:25,403 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:25,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:25,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:25,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:25,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:25,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:25,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:25,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:25,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:25,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:25,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:25,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:25,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:25,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,514 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:25,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:25,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:25,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:25,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:25,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,521 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:25,526 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:25,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:25,528 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:25,529 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,530 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:25,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:25,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:25,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:25,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:25,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:25,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:25,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:25,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:25,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:25,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:25,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:25,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45031738] [2021-03-12 00:06:25,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:25,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:25,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:25,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:25,556 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:25,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 457 transitions, 13862 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:25,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:25,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:25,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:26,087 INFO L129 PetriNetUnfolder]: 807/1711 cut-off events. [2021-03-12 00:06:26,087 INFO L130 PetriNetUnfolder]: For 50486/50506 co-relation queries the response was YES. [2021-03-12 00:06:26,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15539 conditions, 1711 events. 807/1711 cut-off events. For 50486/50506 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 12378 event pairs, 88 based on Foata normal form. 9/1647 useless extension candidates. Maximal degree in co-relation 15425. Up to 600 conditions per place. [2021-03-12 00:06:26,109 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 358 selfloop transitions, 142 changer transitions 3/509 dead transitions. [2021-03-12 00:06:26,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 509 transitions, 15782 flow [2021-03-12 00:06:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:26,110 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:26,110 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:26,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:26,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:26,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:26,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:26,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:26,111 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:26,111 INFO L185 Difference]: Start difference. First operand has 419 places, 457 transitions, 13862 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:26,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 509 transitions, 15782 flow [2021-03-12 00:06:26,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 509 transitions, 15519 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:26,339 INFO L241 Difference]: Finished difference. Result has 422 places, 456 transitions, 13865 flow [2021-03-12 00:06:26,339 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13603, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13865, PETRI_PLACES=422, PETRI_TRANSITIONS=456} [2021-03-12 00:06:26,339 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 399 predicate places. [2021-03-12 00:06:26,339 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 456 transitions, 13865 flow [2021-03-12 00:06:26,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:26,339 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:26,339 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:26,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:26,540 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:26,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1838138752, now seen corresponding path program 8 times [2021-03-12 00:06:26,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:26,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150693104] [2021-03-12 00:06:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:26,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:26,557 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:26,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:26,565 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:06:26,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:26,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:26,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:26,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150693104] [2021-03-12 00:06:26,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154166890] [2021-03-12 00:06:26,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:26,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:26,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:26,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:26,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:26,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:26,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:26,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:26,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,678 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:26,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:26,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:26,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:26,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,682 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:26,683 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:26,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:26,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:26,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:26,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:26,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:26,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,705 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:26,706 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,706 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:26,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:26,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:26,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:26,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:26,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:26,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:26,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:26,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:26,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:26,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:26,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:26,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691803794] [2021-03-12 00:06:26,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:26,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:26,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:26,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:26,764 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:26,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 456 transitions, 13865 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:26,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:26,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:26,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:27,394 INFO L129 PetriNetUnfolder]: 849/1868 cut-off events. [2021-03-12 00:06:27,395 INFO L130 PetriNetUnfolder]: For 54571/54591 co-relation queries the response was YES. [2021-03-12 00:06:27,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16496 conditions, 1868 events. 849/1868 cut-off events. For 54571/54591 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 14161 event pairs, 67 based on Foata normal form. 7/1802 useless extension candidates. Maximal degree in co-relation 16382. Up to 909 conditions per place. [2021-03-12 00:06:27,417 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 376 selfloop transitions, 145 changer transitions 4/531 dead transitions. [2021-03-12 00:06:27,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 531 transitions, 16531 flow [2021-03-12 00:06:27,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:27,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:06:27,417 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:06:27,417 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:06:27,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:06:27,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:27,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:06:27,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:27,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:27,418 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:27,418 INFO L185 Difference]: Start difference. First operand has 422 places, 456 transitions, 13865 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:06:27,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 531 transitions, 16531 flow [2021-03-12 00:06:27,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 531 transitions, 16233 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:27,688 INFO L241 Difference]: Finished difference. Result has 428 places, 468 transitions, 14401 flow [2021-03-12 00:06:27,688 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13588, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14401, PETRI_PLACES=428, PETRI_TRANSITIONS=468} [2021-03-12 00:06:27,688 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 405 predicate places. [2021-03-12 00:06:27,688 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 468 transitions, 14401 flow [2021-03-12 00:06:27,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:27,688 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:27,688 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:27,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:27,889 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:27,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:27,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1945123461, now seen corresponding path program 3 times [2021-03-12 00:06:27,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:27,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574407480] [2021-03-12 00:06:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:27,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:27,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:27,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:27,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:27,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:27,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:27,914 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:27,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:27,933 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:06:27,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:27,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:27,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:27,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574407480] [2021-03-12 00:06:27,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:27,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-12 00:06:27,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777378191] [2021-03-12 00:06:27,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:06:27,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:27,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:06:27,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:06:27,949 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:06:27,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 468 transitions, 14401 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:27,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:27,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:06:27,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:28,403 INFO L129 PetriNetUnfolder]: 811/1795 cut-off events. [2021-03-12 00:06:28,403 INFO L130 PetriNetUnfolder]: For 56415/56421 co-relation queries the response was YES. [2021-03-12 00:06:28,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16421 conditions, 1795 events. 811/1795 cut-off events. For 56415/56421 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 13665 event pairs, 118 based on Foata normal form. 10/1717 useless extension candidates. Maximal degree in co-relation 16303. Up to 877 conditions per place. [2021-03-12 00:06:28,424 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 291 selfloop transitions, 136 changer transitions 36/494 dead transitions. [2021-03-12 00:06:28,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 494 transitions, 15668 flow [2021-03-12 00:06:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:28,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-03-12 00:06:28,425 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2021-03-12 00:06:28,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-03-12 00:06:28,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-03-12 00:06:28,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:28,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-03-12 00:06:28,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:28,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:28,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:28,426 INFO L185 Difference]: Start difference. First operand has 428 places, 468 transitions, 14401 flow. Second operand 6 states and 148 transitions. [2021-03-12 00:06:28,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 494 transitions, 15668 flow [2021-03-12 00:06:28,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 494 transitions, 15511 flow, removed 16 selfloop flow, removed 3 redundant places. [2021-03-12 00:06:28,658 INFO L241 Difference]: Finished difference. Result has 430 places, 441 transitions, 13532 flow [2021-03-12 00:06:28,658 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14250, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13532, PETRI_PLACES=430, PETRI_TRANSITIONS=441} [2021-03-12 00:06:28,659 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 407 predicate places. [2021-03-12 00:06:28,659 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 441 transitions, 13532 flow [2021-03-12 00:06:28,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:28,659 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:28,659 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:28,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-12 00:06:28,659 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:28,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1598201222, now seen corresponding path program 9 times [2021-03-12 00:06:28,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:28,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207976343] [2021-03-12 00:06:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:28,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:28,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:28,687 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:28,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:28,695 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:28,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:28,704 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:28,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:28,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:28,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207976343] [2021-03-12 00:06:28,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94308502] [2021-03-12 00:06:28,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:28,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:06:28,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:28,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:28,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:28,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:28,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:28,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:28,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:28,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,784 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:28,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:28,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:28,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:28,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:28,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,788 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:28,789 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,789 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:28,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:28,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:28,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,827 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:28,828 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,829 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:28,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:28,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:28,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:28,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:28,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:28,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:28,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:28,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:28,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:28,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446347910] [2021-03-12 00:06:28,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:28,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:28,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:28,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:28,868 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:28,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 441 transitions, 13532 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:28,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:28,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:28,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:29,498 INFO L129 PetriNetUnfolder]: 812/1760 cut-off events. [2021-03-12 00:06:29,499 INFO L130 PetriNetUnfolder]: For 53920/53940 co-relation queries the response was YES. [2021-03-12 00:06:29,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16080 conditions, 1760 events. 812/1760 cut-off events. For 53920/53940 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 12967 event pairs, 67 based on Foata normal form. 9/1710 useless extension candidates. Maximal degree in co-relation 15962. Up to 834 conditions per place. [2021-03-12 00:06:29,520 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 359 selfloop transitions, 129 changer transitions 5/499 dead transitions. [2021-03-12 00:06:29,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 499 transitions, 15656 flow [2021-03-12 00:06:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:29,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:29,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:06:29,521 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:06:29,521 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:06:29,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:06:29,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:29,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:06:29,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:29,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:29,521 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:29,521 INFO L185 Difference]: Start difference. First operand has 430 places, 441 transitions, 13532 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:06:29,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 499 transitions, 15656 flow [2021-03-12 00:06:29,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 499 transitions, 15258 flow, removed 30 selfloop flow, removed 16 redundant places. [2021-03-12 00:06:29,744 INFO L241 Difference]: Finished difference. Result has 412 places, 447 transitions, 13595 flow [2021-03-12 00:06:29,744 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13140, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13595, PETRI_PLACES=412, PETRI_TRANSITIONS=447} [2021-03-12 00:06:29,744 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 389 predicate places. [2021-03-12 00:06:29,744 INFO L480 AbstractCegarLoop]: Abstraction has has 412 places, 447 transitions, 13595 flow [2021-03-12 00:06:29,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:29,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:29,745 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:29,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable145 [2021-03-12 00:06:29,965 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:29,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1953930000, now seen corresponding path program 10 times [2021-03-12 00:06:29,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:29,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950518309] [2021-03-12 00:06:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:29,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:29,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:29,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:29,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:29,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:29,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:29,982 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:29,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:29,991 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:06:29,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:30,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:30,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950518309] [2021-03-12 00:06:30,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614801093] [2021-03-12 00:06:30,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:30,064 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:30,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:30,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:30,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:30,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:30,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:30,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:30,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:30,083 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:30,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:30,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,087 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:30,088 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:30,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:30,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:30,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:30,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,132 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:30,132 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:30,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:30,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:30,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:30,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,161 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:30,162 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:30,164 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:30,165 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:30,165 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:06:30,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:30,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:30,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:30,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:30,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:30,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134400595] [2021-03-12 00:06:30,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:30,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:30,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:30,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:30,183 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:30,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 447 transitions, 13595 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:30,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:30,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:30,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:30,773 INFO L129 PetriNetUnfolder]: 808/1738 cut-off events. [2021-03-12 00:06:30,773 INFO L130 PetriNetUnfolder]: For 53888/53908 co-relation queries the response was YES. [2021-03-12 00:06:30,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16084 conditions, 1738 events. 808/1738 cut-off events. For 53888/53908 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 12700 event pairs, 69 based on Foata normal form. 7/1686 useless extension candidates. Maximal degree in co-relation 15967. Up to 834 conditions per place. [2021-03-12 00:06:30,794 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 359 selfloop transitions, 125 changer transitions 5/495 dead transitions. [2021-03-12 00:06:30,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 495 transitions, 15482 flow [2021-03-12 00:06:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-03-12 00:06:30,795 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2021-03-12 00:06:30,795 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-03-12 00:06:30,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-03-12 00:06:30,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:30,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-03-12 00:06:30,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:30,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:30,796 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:30,796 INFO L185 Difference]: Start difference. First operand has 412 places, 447 transitions, 13595 flow. Second operand 8 states and 167 transitions. [2021-03-12 00:06:30,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 495 transitions, 15482 flow [2021-03-12 00:06:31,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 495 transitions, 15360 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:06:31,023 INFO L241 Difference]: Finished difference. Result has 416 places, 444 transitions, 13634 flow [2021-03-12 00:06:31,024 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13477, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13634, PETRI_PLACES=416, PETRI_TRANSITIONS=444} [2021-03-12 00:06:31,024 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 393 predicate places. [2021-03-12 00:06:31,024 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 444 transitions, 13634 flow [2021-03-12 00:06:31,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:31,024 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:31,024 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:31,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable148 [2021-03-12 00:06:31,240 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:31,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1714646772, now seen corresponding path program 11 times [2021-03-12 00:06:31,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:31,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688234616] [2021-03-12 00:06:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:31,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:31,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:31,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:31,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:31,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688234616] [2021-03-12 00:06:31,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767804743] [2021-03-12 00:06:31,290 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:31,327 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:31,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:31,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:31,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:31,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:31,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:31,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:31,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:31,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:31,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:31,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:31,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:31,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,369 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:31,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:31,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:31,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:31,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:31,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,374 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:31,375 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:31,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:31,377 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:31,378 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,378 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:31,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:31,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:31,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:31,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:31,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:31,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:31,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:31,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:31,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:31,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:06:31,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694784036] [2021-03-12 00:06:31,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:31,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:31,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:31,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:31,405 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:31,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 444 transitions, 13634 flow. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:31,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:31,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:31,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:31,983 INFO L129 PetriNetUnfolder]: 896/1895 cut-off events. [2021-03-12 00:06:31,983 INFO L130 PetriNetUnfolder]: For 63758/63778 co-relation queries the response was YES. [2021-03-12 00:06:32,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17817 conditions, 1895 events. 896/1895 cut-off events. For 63758/63778 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 13868 event pairs, 91 based on Foata normal form. 7/1843 useless extension candidates. Maximal degree in co-relation 17700. Up to 862 conditions per place. [2021-03-12 00:06:32,011 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 385 selfloop transitions, 146 changer transitions 4/541 dead transitions. [2021-03-12 00:06:32,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 541 transitions, 16976 flow [2021-03-12 00:06:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:32,012 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:32,012 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:32,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:32,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:32,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:32,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:32,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:32,012 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:32,012 INFO L185 Difference]: Start difference. First operand has 416 places, 444 transitions, 13634 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:32,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 541 transitions, 16976 flow [2021-03-12 00:06:32,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 541 transitions, 16679 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:32,252 INFO L241 Difference]: Finished difference. Result has 420 places, 470 transitions, 14624 flow [2021-03-12 00:06:32,252 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=13394, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14624, PETRI_PLACES=420, PETRI_TRANSITIONS=470} [2021-03-12 00:06:32,252 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 397 predicate places. [2021-03-12 00:06:32,252 INFO L480 AbstractCegarLoop]: Abstraction has has 420 places, 470 transitions, 14624 flow [2021-03-12 00:06:32,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:32,252 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:32,253 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:32,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:32,453 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:32,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1353641350, now seen corresponding path program 3 times [2021-03-12 00:06:32,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:32,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812557214] [2021-03-12 00:06:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:32,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:32,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:06:32,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:32,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:32,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:32,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:32,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:32,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:32,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812557214] [2021-03-12 00:06:32,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:06:32,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:06:32,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947721043] [2021-03-12 00:06:32,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:06:32,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:32,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:06:32,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:06:32,497 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-12 00:06:32,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 470 transitions, 14624 flow. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:32,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:32,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-12 00:06:32,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:33,064 INFO L129 PetriNetUnfolder]: 896/1877 cut-off events. [2021-03-12 00:06:33,064 INFO L130 PetriNetUnfolder]: For 64902/64922 co-relation queries the response was YES. [2021-03-12 00:06:33,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18147 conditions, 1877 events. 896/1877 cut-off events. For 64902/64922 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 13667 event pairs, 152 based on Foata normal form. 6/1824 useless extension candidates. Maximal degree in co-relation 18026. Up to 1066 conditions per place. [2021-03-12 00:06:33,087 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 320 selfloop transitions, 155 changer transitions 4/485 dead transitions. [2021-03-12 00:06:33,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 485 transitions, 15732 flow [2021-03-12 00:06:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2021-03-12 00:06:33,088 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2021-03-12 00:06:33,088 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 184 transitions. [2021-03-12 00:06:33,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 184 transitions. [2021-03-12 00:06:33,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:33,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 184 transitions. [2021-03-12 00:06:33,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:33,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:33,089 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:33,089 INFO L185 Difference]: Start difference. First operand has 420 places, 470 transitions, 14624 flow. Second operand 8 states and 184 transitions. [2021-03-12 00:06:33,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 485 transitions, 15732 flow [2021-03-12 00:06:33,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 485 transitions, 15595 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:06:33,386 INFO L241 Difference]: Finished difference. Result has 424 places, 469 transitions, 14746 flow [2021-03-12 00:06:33,386 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14491, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14746, PETRI_PLACES=424, PETRI_TRANSITIONS=469} [2021-03-12 00:06:33,386 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 401 predicate places. [2021-03-12 00:06:33,386 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 469 transitions, 14746 flow [2021-03-12 00:06:33,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:33,386 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:33,386 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:33,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-12 00:06:33,387 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:33,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1603824252, now seen corresponding path program 12 times [2021-03-12 00:06:33,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:33,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381955949] [2021-03-12 00:06:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:33,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:33,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:33,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:33,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:33,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381955949] [2021-03-12 00:06:33,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750552057] [2021-03-12 00:06:33,440 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:33,473 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:06:33,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:33,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:33,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:33,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:33,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:33,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:33,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:33,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:33,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:33,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:33,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:33,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:33,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:33,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,531 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:33,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:33,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:33,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:33,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:33,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,537 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:33,538 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:33,540 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:33,540 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,541 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:33,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:33,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:33,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:33,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:33,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:33,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:33,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:33,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:33,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:33,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:33,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:33,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114815964] [2021-03-12 00:06:33,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:33,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:33,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:33,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:33,577 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:33,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 469 transitions, 14746 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:33,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:33,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:33,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:34,104 INFO L129 PetriNetUnfolder]: 895/1887 cut-off events. [2021-03-12 00:06:34,104 INFO L130 PetriNetUnfolder]: For 66526/66546 co-relation queries the response was YES. [2021-03-12 00:06:34,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18199 conditions, 1887 events. 895/1887 cut-off events. For 66526/66546 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 13749 event pairs, 87 based on Foata normal form. 8/1836 useless extension candidates. Maximal degree in co-relation 18078. Up to 862 conditions per place. [2021-03-12 00:06:34,127 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 383 selfloop transitions, 145 changer transitions 5/539 dead transitions. [2021-03-12 00:06:34,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 539 transitions, 17274 flow [2021-03-12 00:06:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:34,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:34,128 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:34,128 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:34,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:34,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:34,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:34,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:34,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:34,129 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:34,129 INFO L185 Difference]: Start difference. First operand has 424 places, 469 transitions, 14746 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:34,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 539 transitions, 17274 flow [2021-03-12 00:06:34,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 539 transitions, 16989 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:34,373 INFO L241 Difference]: Finished difference. Result has 426 places, 470 transitions, 14808 flow [2021-03-12 00:06:34,373 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14467, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14808, PETRI_PLACES=426, PETRI_TRANSITIONS=470} [2021-03-12 00:06:34,373 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 403 predicate places. [2021-03-12 00:06:34,373 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 470 transitions, 14808 flow [2021-03-12 00:06:34,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:34,374 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:34,374 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:34,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable157 [2021-03-12 00:06:34,574 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:34,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:34,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1525322766, now seen corresponding path program 13 times [2021-03-12 00:06:34,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:34,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331610583] [2021-03-12 00:06:34,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:34,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:34,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:34,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:34,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:34,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:34,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331610583] [2021-03-12 00:06:34,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761518731] [2021-03-12 00:06:34,625 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:34,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:34,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:34,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:34,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:34,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:34,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:34,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:34,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:34,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:34,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:34,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:34,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,706 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:06:34,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:34,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:06:34,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:34,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:34,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,720 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:34,721 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:34,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:34,724 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:34,725 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,726 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:34,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:34,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:34,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:34,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:34,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:34,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:34,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:34,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:34,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:34,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:34,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:34,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053226048] [2021-03-12 00:06:34,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:34,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:34,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:34,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:34,773 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:34,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 470 transitions, 14808 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:34,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:34,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:34,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:35,363 INFO L129 PetriNetUnfolder]: 927/2021 cut-off events. [2021-03-12 00:06:35,363 INFO L130 PetriNetUnfolder]: For 70960/70980 co-relation queries the response was YES. [2021-03-12 00:06:35,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19158 conditions, 2021 events. 927/2021 cut-off events. For 70960/70980 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 15313 event pairs, 69 based on Foata normal form. 6/1968 useless extension candidates. Maximal degree in co-relation 19036. Up to 862 conditions per place. [2021-03-12 00:06:35,385 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 390 selfloop transitions, 151 changer transitions 2/549 dead transitions. [2021-03-12 00:06:35,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 549 transitions, 17783 flow [2021-03-12 00:06:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:35,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:06:35,388 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:06:35,388 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:06:35,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:06:35,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:35,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:06:35,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:35,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:35,389 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:35,389 INFO L185 Difference]: Start difference. First operand has 426 places, 470 transitions, 14808 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:06:35,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 549 transitions, 17783 flow [2021-03-12 00:06:35,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 549 transitions, 17403 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:35,630 INFO L241 Difference]: Finished difference. Result has 430 places, 481 transitions, 15333 flow [2021-03-12 00:06:35,630 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14446, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15333, PETRI_PLACES=430, PETRI_TRANSITIONS=481} [2021-03-12 00:06:35,630 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 407 predicate places. [2021-03-12 00:06:35,630 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 481 transitions, 15333 flow [2021-03-12 00:06:35,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:35,631 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:35,631 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:35,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:35,831 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:35,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:35,832 INFO L82 PathProgramCache]: Analyzing trace with hash 157628468, now seen corresponding path program 4 times [2021-03-12 00:06:35,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:35,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432227973] [2021-03-12 00:06:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:35,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:35,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,848 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:06:35,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:35,867 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:06:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:35,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:06:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:35,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432227973] [2021-03-12 00:06:35,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604615170] [2021-03-12 00:06:35,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:35,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:35,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:06:35,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:35,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:35,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:35,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:35,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:35,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,921 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:35,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:35,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:35,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:35,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:35,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,926 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:35,926 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,928 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:35,929 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:35,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:35,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:35,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:35,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:35,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:35,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,946 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:35,947 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:35,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:06:35,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:35,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:35,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-12 00:06:35,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986028334] [2021-03-12 00:06:35,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:35,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:35,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:35,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:35,965 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:06:35,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 481 transitions, 15333 flow. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:35,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:35,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:06:35,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:36,472 INFO L129 PetriNetUnfolder]: 908/1966 cut-off events. [2021-03-12 00:06:36,475 INFO L130 PetriNetUnfolder]: For 70707/70727 co-relation queries the response was YES. [2021-03-12 00:06:36,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18919 conditions, 1966 events. 908/1966 cut-off events. For 70707/70727 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 14822 event pairs, 150 based on Foata normal form. 10/1907 useless extension candidates. Maximal degree in co-relation 18794. Up to 1110 conditions per place. [2021-03-12 00:06:36,500 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 313 selfloop transitions, 129 changer transitions 35/506 dead transitions. [2021-03-12 00:06:36,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 506 transitions, 16604 flow [2021-03-12 00:06:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:06:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:06:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-03-12 00:06:36,501 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2021-03-12 00:06:36,501 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-03-12 00:06:36,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-03-12 00:06:36,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:36,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-03-12 00:06:36,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:36,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:36,502 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:36,502 INFO L185 Difference]: Start difference. First operand has 430 places, 481 transitions, 15333 flow. Second operand 6 states and 148 transitions. [2021-03-12 00:06:36,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 506 transitions, 16604 flow [2021-03-12 00:06:36,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 506 transitions, 16330 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:36,766 INFO L241 Difference]: Finished difference. Result has 428 places, 454 transitions, 14418 flow [2021-03-12 00:06:36,766 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=15067, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=14418, PETRI_PLACES=428, PETRI_TRANSITIONS=454} [2021-03-12 00:06:36,766 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 405 predicate places. [2021-03-12 00:06:36,766 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 454 transitions, 14418 flow [2021-03-12 00:06:36,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:36,766 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:36,766 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:36,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:36,971 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:36,971 INFO L82 PathProgramCache]: Analyzing trace with hash -965183756, now seen corresponding path program 14 times [2021-03-12 00:06:36,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:36,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967261751] [2021-03-12 00:06:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:36,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:36,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:36,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:36,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:36,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:36,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:36,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:36,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:36,991 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:36,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:37,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:37,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:37,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967261751] [2021-03-12 00:06:37,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58892227] [2021-03-12 00:06:37,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:37,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:37,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:37,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:37,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:37,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:37,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,066 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:37,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:37,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:37,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,070 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:37,070 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:37,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:37,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:37,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:37,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:37,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,089 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:37,089 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:37,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:37,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:37,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:37,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:37,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:37,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:37,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,111 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:37,111 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:37,113 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:37,114 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:37,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:06:37,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:37,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:37,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:37,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:37,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394901980] [2021-03-12 00:06:37,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:37,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:37,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:37,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:37,131 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:37,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 454 transitions, 14418 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:37,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:37,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:37,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:37,797 INFO L129 PetriNetUnfolder]: 896/1904 cut-off events. [2021-03-12 00:06:37,797 INFO L130 PetriNetUnfolder]: For 67127/67147 co-relation queries the response was YES. [2021-03-12 00:06:37,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18340 conditions, 1904 events. 896/1904 cut-off events. For 67127/67147 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 13898 event pairs, 95 based on Foata normal form. 7/1854 useless extension candidates. Maximal degree in co-relation 18216. Up to 824 conditions per place. [2021-03-12 00:06:37,822 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 355 selfloop transitions, 138 changer transitions 5/504 dead transitions. [2021-03-12 00:06:37,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 504 transitions, 16363 flow [2021-03-12 00:06:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:06:37,823 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:06:37,823 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:06:37,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:06:37,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:37,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:06:37,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:37,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:37,824 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:37,824 INFO L185 Difference]: Start difference. First operand has 428 places, 454 transitions, 14418 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:06:37,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 504 transitions, 16363 flow [2021-03-12 00:06:38,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 504 transitions, 16036 flow, removed 49 selfloop flow, removed 13 redundant places. [2021-03-12 00:06:38,071 INFO L241 Difference]: Finished difference. Result has 411 places, 452 transitions, 14326 flow [2021-03-12 00:06:38,071 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14121, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14326, PETRI_PLACES=411, PETRI_TRANSITIONS=452} [2021-03-12 00:06:38,071 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 388 predicate places. [2021-03-12 00:06:38,071 INFO L480 AbstractCegarLoop]: Abstraction has has 411 places, 452 transitions, 14326 flow [2021-03-12 00:06:38,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:38,072 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:38,072 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:38,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-03-12 00:06:38,272 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:38,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:38,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1075551414, now seen corresponding path program 15 times [2021-03-12 00:06:38,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:38,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463666923] [2021-03-12 00:06:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:38,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:38,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:38,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:38,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:38,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:38,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463666923] [2021-03-12 00:06:38,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966139718] [2021-03-12 00:06:38,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:38,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:06:38,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:38,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:38,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:38,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:38,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:38,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:38,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:38,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:38,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:38,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:38,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:38,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:38,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:38,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:38,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:38,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:38,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,423 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:38,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:38,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:38,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:38,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,429 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:38,430 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:38,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:38,432 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:38,433 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,433 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:38,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:38,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:38,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:38,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:38,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:38,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:38,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:38,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:38,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:38,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649221254] [2021-03-12 00:06:38,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:38,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:38,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:38,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:38,469 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:38,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 452 transitions, 14326 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:38,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:38,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:38,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:39,021 INFO L129 PetriNetUnfolder]: 922/1927 cut-off events. [2021-03-12 00:06:39,021 INFO L130 PetriNetUnfolder]: For 72236/72256 co-relation queries the response was YES. [2021-03-12 00:06:39,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18833 conditions, 1927 events. 922/1927 cut-off events. For 72236/72256 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 13899 event pairs, 120 based on Foata normal form. 8/1878 useless extension candidates. Maximal degree in co-relation 18710. Up to 832 conditions per place. [2021-03-12 00:06:39,046 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 351 selfloop transitions, 163 changer transitions 5/525 dead transitions. [2021-03-12 00:06:39,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 525 transitions, 17024 flow [2021-03-12 00:06:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:39,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:39,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:06:39,047 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:06:39,047 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:06:39,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:06:39,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:39,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:06:39,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:39,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:39,047 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:39,047 INFO L185 Difference]: Start difference. First operand has 411 places, 452 transitions, 14326 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:06:39,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 525 transitions, 17024 flow [2021-03-12 00:06:39,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 525 transitions, 16729 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:39,305 INFO L241 Difference]: Finished difference. Result has 415 places, 472 transitions, 15110 flow [2021-03-12 00:06:39,306 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14067, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15110, PETRI_PLACES=415, PETRI_TRANSITIONS=472} [2021-03-12 00:06:39,306 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 392 predicate places. [2021-03-12 00:06:39,306 INFO L480 AbstractCegarLoop]: Abstraction has has 415 places, 472 transitions, 15110 flow [2021-03-12 00:06:39,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:39,306 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:39,306 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:39,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:39,507 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash 934393430, now seen corresponding path program 16 times [2021-03-12 00:06:39,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:39,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531975560] [2021-03-12 00:06:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:39,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:39,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:39,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:39,551 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-12 00:06:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:39,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531975560] [2021-03-12 00:06:39,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709003113] [2021-03-12 00:06:39,586 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:39,623 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:39,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:39,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:39,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:39,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:39,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:39,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:39,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:39,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:39,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:39,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:39,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:39,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:39,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:39,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,671 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:39,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:39,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:39,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,676 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:39,677 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:39,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:39,681 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:39,681 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,682 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:39,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:39,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:39,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:39,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:39,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:39,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:39,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:39,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:39,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:39,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:06:39,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060539911] [2021-03-12 00:06:39,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:39,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:39,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:39,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:39,725 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:39,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 472 transitions, 15110 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:39,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:39,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:39,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:40,386 INFO L129 PetriNetUnfolder]: 926/1955 cut-off events. [2021-03-12 00:06:40,387 INFO L130 PetriNetUnfolder]: For 73193/73213 co-relation queries the response was YES. [2021-03-12 00:06:40,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19294 conditions, 1955 events. 926/1955 cut-off events. For 73193/73213 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 14313 event pairs, 96 based on Foata normal form. 6/1904 useless extension candidates. Maximal degree in co-relation 19168. Up to 840 conditions per place. [2021-03-12 00:06:40,412 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 350 selfloop transitions, 167 changer transitions 2/525 dead transitions. [2021-03-12 00:06:40,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 525 transitions, 17251 flow [2021-03-12 00:06:40,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:40,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:06:40,413 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:06:40,413 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:06:40,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:06:40,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:40,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:06:40,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:40,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:40,414 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:40,414 INFO L185 Difference]: Start difference. First operand has 415 places, 472 transitions, 15110 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:06:40,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 525 transitions, 17251 flow [2021-03-12 00:06:40,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 525 transitions, 17087 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:40,684 INFO L241 Difference]: Finished difference. Result has 419 places, 478 transitions, 15538 flow [2021-03-12 00:06:40,685 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=14964, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15538, PETRI_PLACES=419, PETRI_TRANSITIONS=478} [2021-03-12 00:06:40,685 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 396 predicate places. [2021-03-12 00:06:40,685 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 478 transitions, 15538 flow [2021-03-12 00:06:40,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:40,685 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:40,685 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:40,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable175 [2021-03-12 00:06:40,899 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:40,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:40,899 INFO L82 PathProgramCache]: Analyzing trace with hash -91443076, now seen corresponding path program 17 times [2021-03-12 00:06:40,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:40,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144908234] [2021-03-12 00:06:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:40,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:40,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:40,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:40,920 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:40,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:40,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:40,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:40,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:40,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144908234] [2021-03-12 00:06:40,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133831109] [2021-03-12 00:06:40,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:40,977 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:40,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:40,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:40,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:40,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:40,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:40,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:40,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:40,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:40,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:40,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:40,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:40,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:40,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:41,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:41,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:41,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:41,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:41,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,017 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:41,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:41,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:41,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,020 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:41,020 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:41,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:41,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:41,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:41,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:41,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,039 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:41,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:41,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:41,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:41,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:41,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:41,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:41,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:41,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,062 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:41,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:41,065 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:41,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:41,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:06:41,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:41,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:41,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:41,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:41,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981224247] [2021-03-12 00:06:41,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:41,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:41,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:41,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:41,082 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:41,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 478 transitions, 15538 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:41,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:41,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:41,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:41,673 INFO L129 PetriNetUnfolder]: 925/1939 cut-off events. [2021-03-12 00:06:41,673 INFO L130 PetriNetUnfolder]: For 75504/75524 co-relation queries the response was YES. [2021-03-12 00:06:41,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19299 conditions, 1939 events. 925/1939 cut-off events. For 75504/75524 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 14018 event pairs, 104 based on Foata normal form. 7/1889 useless extension candidates. Maximal degree in co-relation 19173. Up to 840 conditions per place. [2021-03-12 00:06:41,698 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 357 selfloop transitions, 157 changer transitions 5/525 dead transitions. [2021-03-12 00:06:41,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 525 transitions, 17465 flow [2021-03-12 00:06:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2021-03-12 00:06:41,699 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-12 00:06:41,699 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 168 transitions. [2021-03-12 00:06:41,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 168 transitions. [2021-03-12 00:06:41,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:41,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 168 transitions. [2021-03-12 00:06:41,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:41,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:41,700 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:41,700 INFO L185 Difference]: Start difference. First operand has 419 places, 478 transitions, 15538 flow. Second operand 8 states and 168 transitions. [2021-03-12 00:06:41,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 525 transitions, 17465 flow [2021-03-12 00:06:41,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 525 transitions, 17135 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-12 00:06:41,953 INFO L241 Difference]: Finished difference. Result has 419 places, 476 transitions, 15449 flow [2021-03-12 00:06:41,953 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=15212, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15449, PETRI_PLACES=419, PETRI_TRANSITIONS=476} [2021-03-12 00:06:41,953 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 396 predicate places. [2021-03-12 00:06:41,953 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 476 transitions, 15449 flow [2021-03-12 00:06:41,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:41,953 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:41,953 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:42,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable178 [2021-03-12 00:06:42,155 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:42,155 INFO L82 PathProgramCache]: Analyzing trace with hash -975050006, now seen corresponding path program 18 times [2021-03-12 00:06:42,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:42,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015084070] [2021-03-12 00:06:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:42,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:42,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:42,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:42,180 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:42,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:42,189 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:42,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:42,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:42,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015084070] [2021-03-12 00:06:42,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909736970] [2021-03-12 00:06:42,214 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:42,234 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:06:42,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:42,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:42,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:42,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:42,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:42,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,267 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:42,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:42,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:42,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,270 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:42,271 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:42,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:42,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:42,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:42,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:42,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,290 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:42,291 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,291 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:42,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:42,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:42,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:42,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:42,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:42,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:42,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:42,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:42,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:42,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993227024] [2021-03-12 00:06:42,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:42,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:42,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:42,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:42,330 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:42,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 476 transitions, 15449 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:42,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:42,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:42,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:42,928 INFO L129 PetriNetUnfolder]: 923/1922 cut-off events. [2021-03-12 00:06:42,928 INFO L130 PetriNetUnfolder]: For 75571/75576 co-relation queries the response was YES. [2021-03-12 00:06:42,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19189 conditions, 1922 events. 923/1922 cut-off events. For 75571/75576 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 13764 event pairs, 106 based on Foata normal form. 3/1868 useless extension candidates. Maximal degree in co-relation 19063. Up to 840 conditions per place. [2021-03-12 00:06:42,956 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 352 selfloop transitions, 164 changer transitions 2/524 dead transitions. [2021-03-12 00:06:42,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 524 transitions, 17505 flow [2021-03-12 00:06:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-03-12 00:06:42,957 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2021-03-12 00:06:42,957 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-03-12 00:06:42,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-03-12 00:06:42,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:42,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-03-12 00:06:42,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:42,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:42,958 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:42,958 INFO L185 Difference]: Start difference. First operand has 419 places, 476 transitions, 15449 flow. Second operand 8 states and 167 transitions. [2021-03-12 00:06:42,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 524 transitions, 17505 flow [2021-03-12 00:06:43,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 524 transitions, 17257 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:43,214 INFO L241 Difference]: Finished difference. Result has 422 places, 480 transitions, 15697 flow [2021-03-12 00:06:43,215 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=15209, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15697, PETRI_PLACES=422, PETRI_TRANSITIONS=480} [2021-03-12 00:06:43,215 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 399 predicate places. [2021-03-12 00:06:43,215 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 480 transitions, 15697 flow [2021-03-12 00:06:43,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:43,215 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:43,215 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:43,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:43,415 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:43,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1444456166, now seen corresponding path program 19 times [2021-03-12 00:06:43,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:43,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078902459] [2021-03-12 00:06:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:43,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:43,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:43,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:43,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078902459] [2021-03-12 00:06:43,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967014741] [2021-03-12 00:06:43,463 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:43,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:43,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:43,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:43,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:43,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:43,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:43,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:43,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:43,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:43,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,539 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:06:43,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:43,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:06:43,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:43,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:43,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,546 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:43,551 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:43,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:43,556 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:43,557 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,558 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:43,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:43,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:43,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:43,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:43,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:43,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:43,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:43,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:43,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:43,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:43,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:43,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:43,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:43,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:43,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633370712] [2021-03-12 00:06:43,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:43,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:43,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:43,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:43,614 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:43,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 480 transitions, 15697 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:43,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:43,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:43,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:44,347 INFO L129 PetriNetUnfolder]: 1130/2489 cut-off events. [2021-03-12 00:06:44,347 INFO L130 PetriNetUnfolder]: For 92712/92732 co-relation queries the response was YES. [2021-03-12 00:06:44,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23354 conditions, 2489 events. 1130/2489 cut-off events. For 92712/92732 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 19618 event pairs, 119 based on Foata normal form. 9/2429 useless extension candidates. Maximal degree in co-relation 23227. Up to 1134 conditions per place. [2021-03-12 00:06:44,378 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 416 selfloop transitions, 178 changer transitions 6/606 dead transitions. [2021-03-12 00:06:44,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 606 transitions, 19945 flow [2021-03-12 00:06:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:06:44,379 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:06:44,379 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:06:44,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:06:44,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:44,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:06:44,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:44,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:44,379 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:44,379 INFO L185 Difference]: Start difference. First operand has 422 places, 480 transitions, 15697 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:06:44,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 606 transitions, 19945 flow [2021-03-12 00:06:44,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 606 transitions, 19555 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-12 00:06:44,701 INFO L241 Difference]: Finished difference. Result has 424 places, 512 transitions, 16861 flow [2021-03-12 00:06:44,702 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=15357, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=16861, PETRI_PLACES=424, PETRI_TRANSITIONS=512} [2021-03-12 00:06:44,702 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 401 predicate places. [2021-03-12 00:06:44,702 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 512 transitions, 16861 flow [2021-03-12 00:06:44,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:44,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:44,702 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:44,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:44,902 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash 262822408, now seen corresponding path program 20 times [2021-03-12 00:06:44,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:44,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564651741] [2021-03-12 00:06:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:44,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:44,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:44,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:44,922 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:44,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:44,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:44,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:44,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564651741] [2021-03-12 00:06:44,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168656730] [2021-03-12 00:06:44,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:44,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:44,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:44,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:44,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:44,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:44,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:44,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:44,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:44,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:44,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:44,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:44,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:44,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:44,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:44,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:44,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,001 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:45,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:45,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:45,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,004 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:45,005 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:45,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:45,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:45,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:45,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:45,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,022 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:45,023 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:45,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:45,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:45,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:45,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:45,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:45,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:45,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,043 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:45,044 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:45,045 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:45,046 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:45,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:06:45,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:45,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:45,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:45,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:45,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742751366] [2021-03-12 00:06:45,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:45,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:45,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:45,061 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:45,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 512 transitions, 16861 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:45,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:45,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:45,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:45,817 INFO L129 PetriNetUnfolder]: 1126/2458 cut-off events. [2021-03-12 00:06:45,817 INFO L130 PetriNetUnfolder]: For 96357/96377 co-relation queries the response was YES. [2021-03-12 00:06:45,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23857 conditions, 2458 events. 1126/2458 cut-off events. For 96357/96377 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 19200 event pairs, 138 based on Foata normal form. 10/2399 useless extension candidates. Maximal degree in co-relation 23728. Up to 1134 conditions per place. [2021-03-12 00:06:45,849 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 414 selfloop transitions, 160 changer transitions 6/586 dead transitions. [2021-03-12 00:06:45,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 586 transitions, 19641 flow [2021-03-12 00:06:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:06:45,850 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:06:45,850 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:06:45,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:06:45,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:45,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:06:45,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:45,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:45,851 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:45,851 INFO L185 Difference]: Start difference. First operand has 424 places, 512 transitions, 16861 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:06:45,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 586 transitions, 19641 flow [2021-03-12 00:06:46,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 586 transitions, 19518 flow, removed 46 selfloop flow, removed 2 redundant places. [2021-03-12 00:06:46,199 INFO L241 Difference]: Finished difference. Result has 432 places, 522 transitions, 17468 flow [2021-03-12 00:06:46,200 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=16746, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17468, PETRI_PLACES=432, PETRI_TRANSITIONS=522} [2021-03-12 00:06:46,200 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 409 predicate places. [2021-03-12 00:06:46,200 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 522 transitions, 17468 flow [2021-03-12 00:06:46,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:46,200 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:46,200 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:46,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:46,403 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1988663370, now seen corresponding path program 21 times [2021-03-12 00:06:46,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:46,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758035535] [2021-03-12 00:06:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:46,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:46,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:46,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:46,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:46,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:46,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:46,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758035535] [2021-03-12 00:06:46,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585052046] [2021-03-12 00:06:46,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:46,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:06:46,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:46,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-12 00:06:46,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:46,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:46,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:46,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:46,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:46,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:46,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:46,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:46,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:46,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:46,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:46,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:46,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:46,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:46,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:46,555 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:46,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:46,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:46,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:46,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:46,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,560 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:46,561 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:46,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,564 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:46,564 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:46,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:46,566 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:46,567 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:46,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:06:46,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:46,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:46,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:46,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:46,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970411612] [2021-03-12 00:06:46,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:46,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:46,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:46,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:46,582 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:46,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 522 transitions, 17468 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:46,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:46,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:46,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:47,369 INFO L129 PetriNetUnfolder]: 1139/2469 cut-off events. [2021-03-12 00:06:47,370 INFO L130 PetriNetUnfolder]: For 100853/100873 co-relation queries the response was YES. [2021-03-12 00:06:47,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24425 conditions, 2469 events. 1139/2469 cut-off events. For 100853/100873 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 19178 event pairs, 137 based on Foata normal form. 7/2407 useless extension candidates. Maximal degree in co-relation 24293. Up to 1142 conditions per place. [2021-03-12 00:06:47,401 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 410 selfloop transitions, 185 changer transitions 3/604 dead transitions. [2021-03-12 00:06:47,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 604 transitions, 20557 flow [2021-03-12 00:06:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:47,402 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:47,402 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:47,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:47,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:47,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:47,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:47,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:47,403 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:47,403 INFO L185 Difference]: Start difference. First operand has 432 places, 522 transitions, 17468 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:47,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 604 transitions, 20557 flow [2021-03-12 00:06:47,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 604 transitions, 20389 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:06:47,747 INFO L241 Difference]: Finished difference. Result has 438 places, 535 transitions, 18293 flow [2021-03-12 00:06:47,747 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17312, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18293, PETRI_PLACES=438, PETRI_TRANSITIONS=535} [2021-03-12 00:06:47,747 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 415 predicate places. [2021-03-12 00:06:47,747 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 535 transitions, 18293 flow [2021-03-12 00:06:47,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:47,747 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:47,747 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:47,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable194 [2021-03-12 00:06:47,948 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:47,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2099485890, now seen corresponding path program 22 times [2021-03-12 00:06:47,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:47,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024104586] [2021-03-12 00:06:47,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:47,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:47,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:47,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:47,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:47,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:47,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:47,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024104586] [2021-03-12 00:06:47,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074875248] [2021-03-12 00:06:47,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:48,008 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:48,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:48,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:48,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:48,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:48,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:48,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:48,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:48,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:48,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:48,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:48,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:48,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:48,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,038 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:48,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:48,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:48,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:48,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:48,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,042 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:48,043 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:48,045 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:48,045 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,046 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:48,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:48,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:48,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:48,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:48,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:48,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:48,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:48,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:48,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:48,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:48,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:06:48,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660509781] [2021-03-12 00:06:48,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:06:48,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:48,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:06:48,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:06:48,067 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:48,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 535 transitions, 18293 flow. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:48,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:48,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:48,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:48,787 INFO L129 PetriNetUnfolder]: 1137/2454 cut-off events. [2021-03-12 00:06:48,787 INFO L130 PetriNetUnfolder]: For 104570/104590 co-relation queries the response was YES. [2021-03-12 00:06:48,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24689 conditions, 2454 events. 1137/2454 cut-off events. For 104570/104590 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 18997 event pairs, 134 based on Foata normal form. 9/2394 useless extension candidates. Maximal degree in co-relation 24554. Up to 1142 conditions per place. [2021-03-12 00:06:48,820 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 402 selfloop transitions, 188 changer transitions 5/601 dead transitions. [2021-03-12 00:06:48,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 601 transitions, 20832 flow [2021-03-12 00:06:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:06:48,821 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:06:48,821 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:06:48,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:06:48,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:48,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:06:48,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:48,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:48,822 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:48,822 INFO L185 Difference]: Start difference. First operand has 438 places, 535 transitions, 18293 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:06:48,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 601 transitions, 20832 flow [2021-03-12 00:06:49,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 601 transitions, 20573 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:49,187 INFO L241 Difference]: Finished difference. Result has 442 places, 540 transitions, 18630 flow [2021-03-12 00:06:49,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18044, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18630, PETRI_PLACES=442, PETRI_TRANSITIONS=540} [2021-03-12 00:06:49,187 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 419 predicate places. [2021-03-12 00:06:49,187 INFO L480 AbstractCegarLoop]: Abstraction has has 442 places, 540 transitions, 18630 flow [2021-03-12 00:06:49,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:49,187 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:49,187 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:49,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:49,388 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:49,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:49,388 INFO L82 PathProgramCache]: Analyzing trace with hash 187191288, now seen corresponding path program 23 times [2021-03-12 00:06:49,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:49,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064758452] [2021-03-12 00:06:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:49,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:49,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:49,401 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:49,408 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:06:49,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:49,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:49,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:49,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064758452] [2021-03-12 00:06:49,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442272418] [2021-03-12 00:06:49,439 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:49,458 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:49,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:49,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:49,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:49,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:49,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:49,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,477 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:49,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:49,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:49,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:49,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:49,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,480 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:49,480 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:49,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:49,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:49,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:49,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:49,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:49,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,500 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:49,501 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,501 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:49,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:49,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:06:49,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:49,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:49,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:49,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:49,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:49,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:49,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:49,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:49,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:49,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:49,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:49,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:49,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:49,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342947354] [2021-03-12 00:06:49,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:49,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:49,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:49,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:49,551 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:49,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 540 transitions, 18630 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:49,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:49,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:49,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:50,385 INFO L129 PetriNetUnfolder]: 1166/2566 cut-off events. [2021-03-12 00:06:50,385 INFO L130 PetriNetUnfolder]: For 111555/111575 co-relation queries the response was YES. [2021-03-12 00:06:50,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25713 conditions, 2566 events. 1166/2566 cut-off events. For 111555/111575 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20310 event pairs, 118 based on Foata normal form. 9/2502 useless extension candidates. Maximal degree in co-relation 25577. Up to 1142 conditions per place. [2021-03-12 00:06:50,426 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 410 selfloop transitions, 194 changer transitions 6/616 dead transitions. [2021-03-12 00:06:50,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 616 transitions, 21597 flow [2021-03-12 00:06:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:06:50,426 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:06:50,427 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:06:50,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:06:50,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:50,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:06:50,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:50,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:50,427 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:50,427 INFO L185 Difference]: Start difference. First operand has 442 places, 540 transitions, 18630 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:06:50,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 616 transitions, 21597 flow [2021-03-12 00:06:50,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 616 transitions, 21241 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:50,818 INFO L241 Difference]: Finished difference. Result has 447 places, 549 transitions, 19148 flow [2021-03-12 00:06:50,818 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18290, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19148, PETRI_PLACES=447, PETRI_TRANSITIONS=549} [2021-03-12 00:06:50,818 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 424 predicate places. [2021-03-12 00:06:50,818 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 549 transitions, 19148 flow [2021-03-12 00:06:50,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:50,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:50,819 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:51,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-03-12 00:06:51,019 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:51,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:51,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1328821342, now seen corresponding path program 24 times [2021-03-12 00:06:51,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:51,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869763331] [2021-03-12 00:06:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:51,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:51,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:51,031 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:51,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:51,039 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:51,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,048 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:51,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:51,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:51,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869763331] [2021-03-12 00:06:51,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82277249] [2021-03-12 00:06:51,073 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:51,092 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:06:51,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:51,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:51,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:51,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:51,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:51,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:51,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:51,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:51,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:51,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:51,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:51,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:51,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:51,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:51,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:51,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:51,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:51,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:51,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:51,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:51,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:51,160 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:51,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:51,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:51,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:06:51,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,165 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:51,166 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,169 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:51,169 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:51,171 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:51,172 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:51,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:06:51,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:51,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:51,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:51,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:51,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400491061] [2021-03-12 00:06:51,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:51,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:51,188 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:51,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 549 transitions, 19148 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:51,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:51,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:51,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:52,061 INFO L129 PetriNetUnfolder]: 1162/2548 cut-off events. [2021-03-12 00:06:52,061 INFO L130 PetriNetUnfolder]: For 114951/114971 co-relation queries the response was YES. [2021-03-12 00:06:52,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25944 conditions, 2548 events. 1162/2548 cut-off events. For 114951/114971 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 20093 event pairs, 108 based on Foata normal form. 7/2482 useless extension candidates. Maximal degree in co-relation 25805. Up to 1142 conditions per place. [2021-03-12 00:06:52,102 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 404 selfloop transitions, 191 changer transitions 4/605 dead transitions. [2021-03-12 00:06:52,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 605 transitions, 21441 flow [2021-03-12 00:06:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:06:52,103 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:06:52,103 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:06:52,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:06:52,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:52,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:06:52,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:52,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:52,104 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:52,104 INFO L185 Difference]: Start difference. First operand has 447 places, 549 transitions, 19148 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:06:52,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 605 transitions, 21441 flow [2021-03-12 00:06:52,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 605 transitions, 21253 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:52,511 INFO L241 Difference]: Finished difference. Result has 452 places, 552 transitions, 19458 flow [2021-03-12 00:06:52,512 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18964, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19458, PETRI_PLACES=452, PETRI_TRANSITIONS=552} [2021-03-12 00:06:52,512 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 429 predicate places. [2021-03-12 00:06:52,512 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 552 transitions, 19458 flow [2021-03-12 00:06:52,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:52,512 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:52,512 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:52,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:52,712 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:52,713 INFO L82 PathProgramCache]: Analyzing trace with hash 540321612, now seen corresponding path program 25 times [2021-03-12 00:06:52,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:52,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824505473] [2021-03-12 00:06:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:52,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:52,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:52,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:52,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:52,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:52,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824505473] [2021-03-12 00:06:52,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914562833] [2021-03-12 00:06:52,763 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:52,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:52,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:52,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:52,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:52,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:52,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:52,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:52,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:52,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:52,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:52,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:52,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:52,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:52,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:52,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:52,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:52,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,839 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:52,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:52,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:52,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,845 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:52,846 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:52,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:52,848 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:52,848 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,849 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:52,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:52,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:52,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:52,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:52,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:52,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:52,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:52,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:52,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:52,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:52,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:06:52,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070501740] [2021-03-12 00:06:52,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:06:52,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:52,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:06:52,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:06:52,881 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:52,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 552 transitions, 19458 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:52,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:52,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:52,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:53,808 INFO L129 PetriNetUnfolder]: 1160/2535 cut-off events. [2021-03-12 00:06:53,808 INFO L130 PetriNetUnfolder]: For 119226/119246 co-relation queries the response was YES. [2021-03-12 00:06:53,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26097 conditions, 2535 events. 1160/2535 cut-off events. For 119226/119246 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 19876 event pairs, 129 based on Foata normal form. 8/2470 useless extension candidates. Maximal degree in co-relation 25956. Up to 1142 conditions per place. [2021-03-12 00:06:53,849 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 407 selfloop transitions, 197 changer transitions 5/615 dead transitions. [2021-03-12 00:06:53,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 615 transitions, 22036 flow [2021-03-12 00:06:53,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:06:53,850 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:06:53,850 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:06:53,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:06:53,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:53,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:06:53,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:53,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:53,851 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:53,851 INFO L185 Difference]: Start difference. First operand has 452 places, 552 transitions, 19458 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:06:53,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 615 transitions, 22036 flow [2021-03-12 00:06:54,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 615 transitions, 21710 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:54,275 INFO L241 Difference]: Finished difference. Result has 458 places, 562 transitions, 19935 flow [2021-03-12 00:06:54,275 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19157, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19935, PETRI_PLACES=458, PETRI_TRANSITIONS=562} [2021-03-12 00:06:54,275 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 435 predicate places. [2021-03-12 00:06:54,275 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 562 transitions, 19935 flow [2021-03-12 00:06:54,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:54,276 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:54,276 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:54,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable208 [2021-03-12 00:06:54,476 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:54,476 INFO L82 PathProgramCache]: Analyzing trace with hash 303432244, now seen corresponding path program 26 times [2021-03-12 00:06:54,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:54,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459164902] [2021-03-12 00:06:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:54,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:54,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:54,489 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:06:54,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:06:54,496 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:54,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:54,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:54,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:54,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459164902] [2021-03-12 00:06:54,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301706223] [2021-03-12 00:06:54,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:54,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:54,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:54,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:54,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:54,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:54,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:54,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:54,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:54,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:54,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:54,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:54,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:54,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:54,561 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:06:54,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:06:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:06:54,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,565 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:54,566 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:54,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:06:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:54,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:54,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:54,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:54,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:54,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:54,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,604 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:54,604 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:54,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:54,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:54,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:54,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:54,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:54,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:06:54,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,630 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:54,630 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:54,632 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:54,633 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:54,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:06:54,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:54,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:54,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:54,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456670680] [2021-03-12 00:06:54,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:54,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:54,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:54,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:54,656 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:54,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 562 transitions, 19935 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:54,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:54,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:54,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:55,506 INFO L129 PetriNetUnfolder]: 1156/2509 cut-off events. [2021-03-12 00:06:55,506 INFO L130 PetriNetUnfolder]: For 120320/120340 co-relation queries the response was YES. [2021-03-12 00:06:55,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26258 conditions, 2509 events. 1156/2509 cut-off events. For 120320/120340 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 19536 event pairs, 116 based on Foata normal form. 6/2442 useless extension candidates. Maximal degree in co-relation 26114. Up to 1142 conditions per place. [2021-03-12 00:06:55,548 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 404 selfloop transitions, 194 changer transitions 4/608 dead transitions. [2021-03-12 00:06:55,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 608 transitions, 22042 flow [2021-03-12 00:06:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2021-03-12 00:06:55,549 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-12 00:06:55,549 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 165 transitions. [2021-03-12 00:06:55,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 165 transitions. [2021-03-12 00:06:55,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:55,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 165 transitions. [2021-03-12 00:06:55,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:55,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:55,549 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:55,549 INFO L185 Difference]: Start difference. First operand has 458 places, 562 transitions, 19935 flow. Second operand 8 states and 165 transitions. [2021-03-12 00:06:55,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 608 transitions, 22042 flow [2021-03-12 00:06:55,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 608 transitions, 21726 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-12 00:06:55,963 INFO L241 Difference]: Finished difference. Result has 461 places, 560 transitions, 19922 flow [2021-03-12 00:06:55,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19621, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19922, PETRI_PLACES=461, PETRI_TRANSITIONS=560} [2021-03-12 00:06:55,963 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 438 predicate places. [2021-03-12 00:06:55,963 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 560 transitions, 19922 flow [2021-03-12 00:06:55,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:55,964 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:55,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:56,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:56,164 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:56,164 INFO L82 PathProgramCache]: Analyzing trace with hash 647569212, now seen corresponding path program 27 times [2021-03-12 00:06:56,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:56,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065598568] [2021-03-12 00:06:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:56,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:56,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:56,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:56,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:56,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:56,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065598568] [2021-03-12 00:06:56,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906508442] [2021-03-12 00:06:56,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:56,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:06:56,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:56,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:56,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:56,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:56,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:56,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:56,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:56,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:56,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:56,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:56,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:56,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:56,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:56,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:56,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:56,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:56,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,295 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:06:56,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:06:56,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:56,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:56,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,306 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:56,306 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:56,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:06:56,308 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:56,308 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,308 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:56,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:56,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:56,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:56,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:56,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:56,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:56,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:56,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:56,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:56,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:56,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:06:56,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977843993] [2021-03-12 00:06:56,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:56,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:56,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:56,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:56,341 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:56,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 560 transitions, 19922 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:56,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:56,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:56,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:57,059 INFO L129 PetriNetUnfolder]: 1159/2520 cut-off events. [2021-03-12 00:06:57,059 INFO L130 PetriNetUnfolder]: For 122308/122328 co-relation queries the response was YES. [2021-03-12 00:06:57,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26357 conditions, 2520 events. 1159/2520 cut-off events. For 122308/122328 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 19688 event pairs, 129 based on Foata normal form. 7/2454 useless extension candidates. Maximal degree in co-relation 26213. Up to 1142 conditions per place. [2021-03-12 00:06:57,096 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 406 selfloop transitions, 200 changer transitions 2/614 dead transitions. [2021-03-12 00:06:57,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 614 transitions, 22330 flow [2021-03-12 00:06:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:57,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:06:57,097 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:06:57,097 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:06:57,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:06:57,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:57,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:06:57,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:57,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:57,098 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:57,098 INFO L185 Difference]: Start difference. First operand has 461 places, 560 transitions, 19922 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:06:57,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 614 transitions, 22330 flow [2021-03-12 00:06:57,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 614 transitions, 21924 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:06:57,522 INFO L241 Difference]: Finished difference. Result has 462 places, 566 transitions, 20231 flow [2021-03-12 00:06:57,522 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19526, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20231, PETRI_PLACES=462, PETRI_TRANSITIONS=566} [2021-03-12 00:06:57,522 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 439 predicate places. [2021-03-12 00:06:57,522 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 566 transitions, 20231 flow [2021-03-12 00:06:57,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:57,522 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:57,522 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:57,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-03-12 00:06:57,723 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:57,723 INFO L82 PathProgramCache]: Analyzing trace with hash -2021812110, now seen corresponding path program 28 times [2021-03-12 00:06:57,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:57,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283997508] [2021-03-12 00:06:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:57,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:57,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:57,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:57,743 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:57,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:57,754 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:57,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:57,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:57,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283997508] [2021-03-12 00:06:57,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447026028] [2021-03-12 00:06:57,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:06:57,813 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:06:57,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:57,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:57,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:57,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:57,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:57,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:57,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:57,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:57,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:57,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:57,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:57,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:57,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:57,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,850 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:57,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:57,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:57,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,854 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:57,855 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:57,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:57,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:57,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:57,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:57,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:57,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,881 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:57,882 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,882 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:57,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:57,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:57,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:57,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:57,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:57,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:57,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:57,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:57,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:57,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:57,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:06:57,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314967687] [2021-03-12 00:06:57,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:06:57,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:57,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:06:57,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:06:57,924 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:57,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 566 transitions, 20231 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:57,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:57,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:57,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:06:58,765 INFO L129 PetriNetUnfolder]: 1157/2502 cut-off events. [2021-03-12 00:06:58,766 INFO L130 PetriNetUnfolder]: For 123170/123190 co-relation queries the response was YES. [2021-03-12 00:06:58,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26345 conditions, 2502 events. 1157/2502 cut-off events. For 123170/123190 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 19410 event pairs, 150 based on Foata normal form. 6/2435 useless extension candidates. Maximal degree in co-relation 26199. Up to 1142 conditions per place. [2021-03-12 00:06:58,803 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 409 selfloop transitions, 200 changer transitions 2/617 dead transitions. [2021-03-12 00:06:58,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 617 transitions, 22543 flow [2021-03-12 00:06:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:06:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:06:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:06:58,804 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:06:58,804 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:06:58,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:06:58,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:06:58,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:06:58,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:58,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:58,805 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:58,805 INFO L185 Difference]: Start difference. First operand has 462 places, 566 transitions, 20231 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:06:58,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 617 transitions, 22543 flow [2021-03-12 00:06:59,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 617 transitions, 22187 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:06:59,298 INFO L241 Difference]: Finished difference. Result has 465 places, 570 transitions, 20467 flow [2021-03-12 00:06:59,299 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19885, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20467, PETRI_PLACES=465, PETRI_TRANSITIONS=570} [2021-03-12 00:06:59,299 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 442 predicate places. [2021-03-12 00:06:59,299 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 570 transitions, 20467 flow [2021-03-12 00:06:59,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:59,299 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:06:59,299 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:06:59,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable219 [2021-03-12 00:06:59,521 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:06:59,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:06:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash 245604508, now seen corresponding path program 29 times [2021-03-12 00:06:59,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:06:59,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896824048] [2021-03-12 00:06:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:06:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:06:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:59,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:06:59,540 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:06:59,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:06:59,551 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:06:59,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:59,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896824048] [2021-03-12 00:06:59,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951734781] [2021-03-12 00:06:59,581 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:06:59,600 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:06:59,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:06:59,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:06:59,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:06:59,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:59,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:59,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:59,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:06:59,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:06:59,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:59,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:59,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:59,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:06:59,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,622 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:06:59,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:06:59,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:06:59,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,625 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:06:59,625 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:59,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:06:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:59,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:06:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,669 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:06:59,670 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,670 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:06:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:06:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:06:59,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:06:59,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:06:59,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:06:59,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:06:59,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:06:59,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:06:59,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:06:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:06:59,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:06:59,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:06:59,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611363839] [2021-03-12 00:06:59,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:06:59,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:06:59,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:06:59,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:06:59,712 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:06:59,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 570 transitions, 20467 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:06:59,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:06:59,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:06:59,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:00,591 INFO L129 PetriNetUnfolder]: 1156/2507 cut-off events. [2021-03-12 00:07:00,591 INFO L130 PetriNetUnfolder]: For 123446/123451 co-relation queries the response was YES. [2021-03-12 00:07:00,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26371 conditions, 2507 events. 1156/2507 cut-off events. For 123446/123451 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 19454 event pairs, 144 based on Foata normal form. 4/2438 useless extension candidates. Maximal degree in co-relation 26224. Up to 1142 conditions per place. [2021-03-12 00:07:00,628 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 409 selfloop transitions, 202 changer transitions 4/621 dead transitions. [2021-03-12 00:07:00,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 621 transitions, 22755 flow [2021-03-12 00:07:00,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:07:00,629 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:07:00,629 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:07:00,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:07:00,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:00,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:07:00,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:00,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:00,629 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:00,629 INFO L185 Difference]: Start difference. First operand has 465 places, 570 transitions, 20467 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:07:00,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 621 transitions, 22755 flow [2021-03-12 00:07:01,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 621 transitions, 22322 flow, removed 11 selfloop flow, removed 8 redundant places. [2021-03-12 00:07:01,060 INFO L241 Difference]: Finished difference. Result has 464 places, 574 transitions, 20581 flow [2021-03-12 00:07:01,060 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20052, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20581, PETRI_PLACES=464, PETRI_TRANSITIONS=574} [2021-03-12 00:07:01,060 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 441 predicate places. [2021-03-12 00:07:01,060 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 574 transitions, 20581 flow [2021-03-12 00:07:01,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:01,061 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:01,061 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:01,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2021-03-12 00:07:01,271 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:01,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:01,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1136563088, now seen corresponding path program 30 times [2021-03-12 00:07:01,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:01,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347337108] [2021-03-12 00:07:01,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:01,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:01,293 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:01,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:01,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:01,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:01,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347337108] [2021-03-12 00:07:01,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052844876] [2021-03-12 00:07:01,320 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:01,339 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:07:01,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:01,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:01,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:01,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:01,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:01,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:01,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:01,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:01,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:01,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,360 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:07:01,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:01,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:01,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,363 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:01,364 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:01,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:01,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:01,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:01,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:01,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,382 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:01,383 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:01,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:01,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:01,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:01,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:01,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:01,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,403 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:01,404 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:01,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:01,406 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:01,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:01,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:01,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:01,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:01,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:01,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613330498] [2021-03-12 00:07:01,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:01,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:01,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:01,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:01,425 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:01,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 574 transitions, 20581 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:01,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:01,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:01,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:02,299 INFO L129 PetriNetUnfolder]: 1154/2483 cut-off events. [2021-03-12 00:07:02,299 INFO L130 PetriNetUnfolder]: For 124311/124331 co-relation queries the response was YES. [2021-03-12 00:07:02,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26278 conditions, 2483 events. 1154/2483 cut-off events. For 124311/124331 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 19173 event pairs, 154 based on Foata normal form. 6/2416 useless extension candidates. Maximal degree in co-relation 26132. Up to 1142 conditions per place. [2021-03-12 00:07:02,333 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 410 selfloop transitions, 197 changer transitions 4/617 dead transitions. [2021-03-12 00:07:02,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 617 transitions, 22680 flow [2021-03-12 00:07:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-03-12 00:07:02,334 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2021-03-12 00:07:02,334 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-03-12 00:07:02,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-03-12 00:07:02,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:02,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-03-12 00:07:02,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:02,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:02,334 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:02,334 INFO L185 Difference]: Start difference. First operand has 464 places, 574 transitions, 20581 flow. Second operand 8 states and 166 transitions. [2021-03-12 00:07:02,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 617 transitions, 22680 flow [2021-03-12 00:07:02,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 617 transitions, 22492 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:07:02,744 INFO L241 Difference]: Finished difference. Result has 467 places, 572 transitions, 20695 flow [2021-03-12 00:07:02,745 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20395, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20695, PETRI_PLACES=467, PETRI_TRANSITIONS=572} [2021-03-12 00:07:02,745 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 444 predicate places. [2021-03-12 00:07:02,745 INFO L480 AbstractCegarLoop]: Abstraction has has 467 places, 572 transitions, 20695 flow [2021-03-12 00:07:02,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:02,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:02,745 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:02,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable225 [2021-03-12 00:07:02,959 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:02,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:02,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1630121383, now seen corresponding path program 4 times [2021-03-12 00:07:02,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:02,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715148016] [2021-03-12 00:07:02,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:02,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:02,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:02,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:02,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:02,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:02,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:02,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:02,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:02,981 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:07:02,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:02,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:02,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:02,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715148016] [2021-03-12 00:07:02,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330492179] [2021-03-12 00:07:02,995 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:03,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:07:03,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:03,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:07:03,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:03,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:03,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:03,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:03,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,053 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:03,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:03,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:03,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:03,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,057 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:03,058 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:03,061 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:03,062 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:03,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:03,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:07:03,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:03,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:03,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:03,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-03-12 00:07:03,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274404673] [2021-03-12 00:07:03,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:07:03,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:03,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:07:03,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:07:03,083 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:07:03,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 572 transitions, 20695 flow. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:03,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:03,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:07:03,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:03,812 INFO L129 PetriNetUnfolder]: 1206/2634 cut-off events. [2021-03-12 00:07:03,812 INFO L130 PetriNetUnfolder]: For 128337/128352 co-relation queries the response was YES. [2021-03-12 00:07:03,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27009 conditions, 2634 events. 1206/2634 cut-off events. For 128337/128352 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 20970 event pairs, 150 based on Foata normal form. 7/2514 useless extension candidates. Maximal degree in co-relation 26864. Up to 1635 conditions per place. [2021-03-12 00:07:03,853 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 456 selfloop transitions, 139 changer transitions 20/650 dead transitions. [2021-03-12 00:07:03,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 650 transitions, 23493 flow [2021-03-12 00:07:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:07:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:07:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2021-03-12 00:07:03,854 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-03-12 00:07:03,854 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 147 transitions. [2021-03-12 00:07:03,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 147 transitions. [2021-03-12 00:07:03,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:03,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 147 transitions. [2021-03-12 00:07:03,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:03,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:03,854 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:03,854 INFO L185 Difference]: Start difference. First operand has 467 places, 572 transitions, 20695 flow. Second operand 6 states and 147 transitions. [2021-03-12 00:07:03,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 650 transitions, 23493 flow [2021-03-12 00:07:04,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 650 transitions, 23057 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:04,304 INFO L241 Difference]: Finished difference. Result has 466 places, 587 transitions, 21011 flow [2021-03-12 00:07:04,304 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20283, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21011, PETRI_PLACES=466, PETRI_TRANSITIONS=587} [2021-03-12 00:07:04,304 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 443 predicate places. [2021-03-12 00:07:04,304 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 587 transitions, 21011 flow [2021-03-12 00:07:04,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:04,304 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:04,304 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:04,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:04,505 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:04,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:04,505 INFO L82 PathProgramCache]: Analyzing trace with hash 761923420, now seen corresponding path program 5 times [2021-03-12 00:07:04,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:04,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589831026] [2021-03-12 00:07:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:04,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:04,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:04,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589831026] [2021-03-12 00:07:04,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132758137] [2021-03-12 00:07:04,528 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:04,548 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:04,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:04,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:07:04,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:04,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:04,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:04,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:04,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:04,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:04,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,585 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:04,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,590 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:04,590 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,593 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:04,594 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:04,596 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:04,596 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:04,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:07:04,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-12 00:07:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:04,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:04,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-12 00:07:04,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100385854] [2021-03-12 00:07:04,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:07:04,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:04,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:07:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:07:04,611 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:07:04,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 587 transitions, 21011 flow. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:04,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:04,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:07:04,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:05,250 INFO L129 PetriNetUnfolder]: 827/2136 cut-off events. [2021-03-12 00:07:05,250 INFO L130 PetriNetUnfolder]: For 104104/104214 co-relation queries the response was YES. [2021-03-12 00:07:05,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21985 conditions, 2136 events. 827/2136 cut-off events. For 104104/104214 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 18566 event pairs, 50 based on Foata normal form. 17/2122 useless extension candidates. Maximal degree in co-relation 21838. Up to 735 conditions per place. [2021-03-12 00:07:05,283 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 257 selfloop transitions, 157 changer transitions 12/632 dead transitions. [2021-03-12 00:07:05,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 632 transitions, 22707 flow [2021-03-12 00:07:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:07:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:07:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2021-03-12 00:07:05,283 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2021-03-12 00:07:05,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 155 transitions. [2021-03-12 00:07:05,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 155 transitions. [2021-03-12 00:07:05,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:05,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 155 transitions. [2021-03-12 00:07:05,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:05,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:05,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:05,284 INFO L185 Difference]: Start difference. First operand has 466 places, 587 transitions, 21011 flow. Second operand 6 states and 155 transitions. [2021-03-12 00:07:05,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 632 transitions, 22707 flow [2021-03-12 00:07:05,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 632 transitions, 22642 flow, removed 14 selfloop flow, removed 2 redundant places. [2021-03-12 00:07:05,667 INFO L241 Difference]: Finished difference. Result has 470 places, 596 transitions, 21495 flow [2021-03-12 00:07:05,668 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20958, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21495, PETRI_PLACES=470, PETRI_TRANSITIONS=596} [2021-03-12 00:07:05,668 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 447 predicate places. [2021-03-12 00:07:05,668 INFO L480 AbstractCegarLoop]: Abstraction has has 470 places, 596 transitions, 21495 flow [2021-03-12 00:07:05,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:05,668 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:05,668 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:05,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-03-12 00:07:05,868 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:05,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1362747089, now seen corresponding path program 5 times [2021-03-12 00:07:05,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:05,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108915215] [2021-03-12 00:07:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:05,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:05,886 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:07:05,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:05,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:05,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108915215] [2021-03-12 00:07:05,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804750787] [2021-03-12 00:07:05,899 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:05,920 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:05,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:05,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:07:05,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:05,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:05,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:05,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:05,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:05,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,941 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:05,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:05,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:05,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:05,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,945 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:05,947 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,949 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:05,949 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:05,951 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:05,951 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:05,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 52.6 percent of original size [2021-03-12 00:07:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:05,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:05,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:05,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-03-12 00:07:05,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276329920] [2021-03-12 00:07:05,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:07:05,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:05,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:07:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:07:05,969 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:07:05,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 596 transitions, 21495 flow. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 9 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:05,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:05,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:07:05,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:06,756 INFO L129 PetriNetUnfolder]: 1281/2717 cut-off events. [2021-03-12 00:07:06,757 INFO L130 PetriNetUnfolder]: For 134485/134513 co-relation queries the response was YES. [2021-03-12 00:07:06,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28293 conditions, 2717 events. 1281/2717 cut-off events. For 134485/134513 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 21306 event pairs, 160 based on Foata normal form. 24/2716 useless extension candidates. Maximal degree in co-relation 28144. Up to 1266 conditions per place. [2021-03-12 00:07:06,797 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 437 selfloop transitions, 164 changer transitions 21/657 dead transitions. [2021-03-12 00:07:06,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 657 transitions, 23944 flow [2021-03-12 00:07:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:07:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:07:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2021-03-12 00:07:06,798 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-03-12 00:07:06,798 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 147 transitions. [2021-03-12 00:07:06,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 147 transitions. [2021-03-12 00:07:06,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:06,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 147 transitions. [2021-03-12 00:07:06,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:06,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:06,798 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:06,798 INFO L185 Difference]: Start difference. First operand has 470 places, 596 transitions, 21495 flow. Second operand 6 states and 147 transitions. [2021-03-12 00:07:06,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 657 transitions, 23944 flow [2021-03-12 00:07:07,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 657 transitions, 23497 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:07,251 INFO L241 Difference]: Finished difference. Result has 471 places, 600 transitions, 21501 flow [2021-03-12 00:07:07,251 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21071, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21501, PETRI_PLACES=471, PETRI_TRANSITIONS=600} [2021-03-12 00:07:07,251 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 448 predicate places. [2021-03-12 00:07:07,251 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 600 transitions, 21501 flow [2021-03-12 00:07:07,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 9 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:07,251 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:07,251 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:07,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable238 [2021-03-12 00:07:07,452 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:07,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1621639010, now seen corresponding path program 6 times [2021-03-12 00:07:07,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:07,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612899808] [2021-03-12 00:07:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:07,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:07,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:07,475 INFO L142 QuantifierPusher]: treesize reduction 25, result has 35.9 percent of original size [2021-03-12 00:07:07,475 INFO L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-03-12 00:07:07,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:07,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612899808] [2021-03-12 00:07:07,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23744101] [2021-03-12 00:07:07,494 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:07,529 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:07:07,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:07,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-12 00:07:07,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:07,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:07,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:07,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:07,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:07,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:07,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:07:07,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:07,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:07,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:07,597 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:07:07,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:07,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:07,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:07,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,603 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:07,603 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,606 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:07,606 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:07,608 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:07,609 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:07,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:07:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:07,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:07,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:07,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-03-12 00:07:07,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378830351] [2021-03-12 00:07:07,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:07,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:07,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:07,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:07,625 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-12 00:07:07,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 600 transitions, 21501 flow. Second operand has 12 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:07,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:07,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-12 00:07:07,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:08,605 INFO L129 PetriNetUnfolder]: 1335/2753 cut-off events. [2021-03-12 00:07:08,605 INFO L130 PetriNetUnfolder]: For 135608/135628 co-relation queries the response was YES. [2021-03-12 00:07:08,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29176 conditions, 2753 events. 1335/2753 cut-off events. For 135608/135628 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 20936 event pairs, 146 based on Foata normal form. 7/2760 useless extension candidates. Maximal degree in co-relation 29028. Up to 1790 conditions per place. [2021-03-12 00:07:08,646 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 487 selfloop transitions, 164 changer transitions 24/681 dead transitions. [2021-03-12 00:07:08,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 681 transitions, 24486 flow [2021-03-12 00:07:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:07:08,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:07:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 168 transitions. [2021-03-12 00:07:08,647 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2021-03-12 00:07:08,647 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 168 transitions. [2021-03-12 00:07:08,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 168 transitions. [2021-03-12 00:07:08,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:08,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 168 transitions. [2021-03-12 00:07:08,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:08,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:08,648 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:08,648 INFO L185 Difference]: Start difference. First operand has 471 places, 600 transitions, 21501 flow. Second operand 7 states and 168 transitions. [2021-03-12 00:07:08,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 681 transitions, 24486 flow [2021-03-12 00:07:09,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 681 transitions, 23949 flow, removed 30 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:09,143 INFO L241 Difference]: Finished difference. Result has 475 places, 616 transitions, 21822 flow [2021-03-12 00:07:09,144 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21014, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21822, PETRI_PLACES=475, PETRI_TRANSITIONS=616} [2021-03-12 00:07:09,144 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 452 predicate places. [2021-03-12 00:07:09,144 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 616 transitions, 21822 flow [2021-03-12 00:07:09,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 19.25) internal successors, (231), 12 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:09,144 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:09,144 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:09,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:09,359 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:09,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2105485258, now seen corresponding path program 31 times [2021-03-12 00:07:09,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:09,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334232201] [2021-03-12 00:07:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:09,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:09,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:09,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:09,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334232201] [2021-03-12 00:07:09,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814814716] [2021-03-12 00:07:09,405 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:07:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:09,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:09,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:09,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:09,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:09,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:09,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:09,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:09,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,481 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:07:09,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:09,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:07:09,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:09,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:09,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,486 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:09,486 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:09,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:09,488 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:09,489 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,489 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:09,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:09,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:09,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:09,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:09,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:09,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:09,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:09,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:09,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:09,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:09,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:09,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:09,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:09,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076958862] [2021-03-12 00:07:09,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:09,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:09,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:09,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:09,538 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:09,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 616 transitions, 21822 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:09,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:09,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:09,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:10,438 INFO L129 PetriNetUnfolder]: 1335/2774 cut-off events. [2021-03-12 00:07:10,438 INFO L130 PetriNetUnfolder]: For 132884/132899 co-relation queries the response was YES. [2021-03-12 00:07:10,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29568 conditions, 2774 events. 1335/2774 cut-off events. For 132884/132899 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 21285 event pairs, 207 based on Foata normal form. 4/2778 useless extension candidates. Maximal degree in co-relation 29418. Up to 968 conditions per place. [2021-03-12 00:07:10,480 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 442 selfloop transitions, 228 changer transitions 6/682 dead transitions. [2021-03-12 00:07:10,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 682 transitions, 24557 flow [2021-03-12 00:07:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:10,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-12 00:07:10,481 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-12 00:07:10,481 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-12 00:07:10,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-12 00:07:10,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:10,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-12 00:07:10,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:10,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:10,482 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:10,482 INFO L185 Difference]: Start difference. First operand has 475 places, 616 transitions, 21822 flow. Second operand 8 states and 176 transitions. [2021-03-12 00:07:10,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 682 transitions, 24557 flow [2021-03-12 00:07:11,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 682 transitions, 24458 flow, removed 32 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:11,044 INFO L241 Difference]: Finished difference. Result has 479 places, 631 transitions, 22710 flow [2021-03-12 00:07:11,044 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21744, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22710, PETRI_PLACES=479, PETRI_TRANSITIONS=631} [2021-03-12 00:07:11,044 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 456 predicate places. [2021-03-12 00:07:11,044 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 631 transitions, 22710 flow [2021-03-12 00:07:11,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:11,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:11,044 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:11,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2021-03-12 00:07:11,245 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:11,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:11,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1819158326, now seen corresponding path program 32 times [2021-03-12 00:07:11,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:11,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297536443] [2021-03-12 00:07:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:11,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,260 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:11,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:11,267 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:07:11,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:11,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:11,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297536443] [2021-03-12 00:07:11,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238423913] [2021-03-12 00:07:11,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:11,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:11,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:11,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:11,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:11,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:11,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:11,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:11,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:11,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:11,332 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:11,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:11,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:07:11,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,335 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:11,336 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:11,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:11,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:11,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:11,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:11,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:11,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:11,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:11,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,369 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:11,369 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:11,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:11,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:11,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:11,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:11,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:11,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:11,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,399 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:11,400 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:11,402 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:11,403 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:11,403 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:11,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:11,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:11,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:11,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182203611] [2021-03-12 00:07:11,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:11,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:11,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:11,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:11,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:11,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 631 transitions, 22710 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:11,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:11,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:11,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:12,449 INFO L129 PetriNetUnfolder]: 1357/2877 cut-off events. [2021-03-12 00:07:12,449 INFO L130 PetriNetUnfolder]: For 140634/140649 co-relation queries the response was YES. [2021-03-12 00:07:12,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30578 conditions, 2877 events. 1357/2877 cut-off events. For 140634/140649 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 22719 event pairs, 199 based on Foata normal form. 4/2881 useless extension candidates. Maximal degree in co-relation 30428. Up to 968 conditions per place. [2021-03-12 00:07:12,494 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 475 selfloop transitions, 198 changer transitions 6/685 dead transitions. [2021-03-12 00:07:12,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 685 transitions, 25149 flow [2021-03-12 00:07:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:07:12,494 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:07:12,494 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:07:12,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:07:12,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:12,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:07:12,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:12,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:12,495 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:12,495 INFO L185 Difference]: Start difference. First operand has 479 places, 631 transitions, 22710 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:07:12,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 685 transitions, 25149 flow [2021-03-12 00:07:13,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 685 transitions, 24599 flow, removed 56 selfloop flow, removed 4 redundant places. [2021-03-12 00:07:13,029 INFO L241 Difference]: Finished difference. Result has 485 places, 636 transitions, 22807 flow [2021-03-12 00:07:13,030 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22168, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22807, PETRI_PLACES=485, PETRI_TRANSITIONS=636} [2021-03-12 00:07:13,030 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 462 predicate places. [2021-03-12 00:07:13,030 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 636 transitions, 22807 flow [2021-03-12 00:07:13,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:13,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:13,030 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:13,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:13,230 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:13,231 INFO L82 PathProgramCache]: Analyzing trace with hash 632715007, now seen corresponding path program 6 times [2021-03-12 00:07:13,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:13,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859416099] [2021-03-12 00:07:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:13,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:13,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:13,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:13,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:13,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:13,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:13,243 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:07:13,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:13,259 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:07:13,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:13,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:13,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:13,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859416099] [2021-03-12 00:07:13,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:07:13,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-12 00:07:13,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552482651] [2021-03-12 00:07:13,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:07:13,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:13,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:07:13,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:07:13,271 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:07:13,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 636 transitions, 22807 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:13,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:13,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:07:13,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:14,155 INFO L129 PetriNetUnfolder]: 1324/2799 cut-off events. [2021-03-12 00:07:14,155 INFO L130 PetriNetUnfolder]: For 136530/136551 co-relation queries the response was YES. [2021-03-12 00:07:14,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29567 conditions, 2799 events. 1324/2799 cut-off events. For 136530/136551 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 21942 event pairs, 188 based on Foata normal form. 11/2784 useless extension candidates. Maximal degree in co-relation 29414. Up to 1858 conditions per place. [2021-03-12 00:07:14,196 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 457 selfloop transitions, 144 changer transitions 38/674 dead transitions. [2021-03-12 00:07:14,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 674 transitions, 24790 flow [2021-03-12 00:07:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:07:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:07:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2021-03-12 00:07:14,197 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2021-03-12 00:07:14,197 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 144 transitions. [2021-03-12 00:07:14,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 144 transitions. [2021-03-12 00:07:14,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:14,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 144 transitions. [2021-03-12 00:07:14,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:14,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:14,198 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:14,198 INFO L185 Difference]: Start difference. First operand has 485 places, 636 transitions, 22807 flow. Second operand 6 states and 144 transitions. [2021-03-12 00:07:14,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 674 transitions, 24790 flow [2021-03-12 00:07:14,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 674 transitions, 24479 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-12 00:07:14,700 INFO L241 Difference]: Finished difference. Result has 486 places, 604 transitions, 21839 flow [2021-03-12 00:07:14,700 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22498, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=21839, PETRI_PLACES=486, PETRI_TRANSITIONS=604} [2021-03-12 00:07:14,700 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 463 predicate places. [2021-03-12 00:07:14,700 INFO L480 AbstractCegarLoop]: Abstraction has has 486 places, 604 transitions, 21839 flow [2021-03-12 00:07:14,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:14,700 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:14,700 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:14,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-12 00:07:14,701 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1509838312, now seen corresponding path program 33 times [2021-03-12 00:07:14,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:14,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328939783] [2021-03-12 00:07:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:14,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:14,718 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:14,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:14,734 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:14,744 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:14,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:14,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:14,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328939783] [2021-03-12 00:07:14,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381419190] [2021-03-12 00:07:14,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:07:14,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:07:14,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:14,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:14,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:14,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:14,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:14,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:14,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:14,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:14,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:14,816 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:07:14,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:14,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:07:14,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:14,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:14,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,819 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:14,821 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:14,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:14,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:14,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:14,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:14,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:14,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,862 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:14,863 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,863 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:14,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:14,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:14,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:14,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:14,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:14,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:14,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:14,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:14,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:14,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:14,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:07:14,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883221794] [2021-03-12 00:07:14,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:14,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:14,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:14,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:14,900 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:14,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 604 transitions, 21839 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:14,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:14,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:14,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:15,923 INFO L129 PetriNetUnfolder]: 1322/2751 cut-off events. [2021-03-12 00:07:15,923 INFO L130 PetriNetUnfolder]: For 134249/134264 co-relation queries the response was YES. [2021-03-12 00:07:15,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29372 conditions, 2751 events. 1322/2751 cut-off events. For 134249/134264 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 21101 event pairs, 203 based on Foata normal form. 1/2752 useless extension candidates. Maximal degree in co-relation 29219. Up to 993 conditions per place. [2021-03-12 00:07:15,967 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 371 selfloop transitions, 249 changer transitions 3/629 dead transitions. [2021-03-12 00:07:15,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 629 transitions, 23433 flow [2021-03-12 00:07:15,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:07:15,968 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:07:15,968 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:07:15,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:07:15,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:15,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:07:15,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:15,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:15,969 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:15,969 INFO L185 Difference]: Start difference. First operand has 486 places, 604 transitions, 21839 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:07:15,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 629 transitions, 23433 flow [2021-03-12 00:07:16,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 629 transitions, 22784 flow, removed 43 selfloop flow, removed 23 redundant places. [2021-03-12 00:07:16,454 INFO L241 Difference]: Finished difference. Result has 447 places, 605 transitions, 21738 flow [2021-03-12 00:07:16,454 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21202, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21738, PETRI_PLACES=447, PETRI_TRANSITIONS=605} [2021-03-12 00:07:16,454 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 424 predicate places. [2021-03-12 00:07:16,454 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 605 transitions, 21738 flow [2021-03-12 00:07:16,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:16,454 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:16,454 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:16,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable255 [2021-03-12 00:07:16,655 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:16,655 INFO L82 PathProgramCache]: Analyzing trace with hash 618896690, now seen corresponding path program 7 times [2021-03-12 00:07:16,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:16,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879190002] [2021-03-12 00:07:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:16,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:16,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:16,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:16,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:16,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:16,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:16,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879190002] [2021-03-12 00:07:16,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:07:16,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:07:16,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110733813] [2021-03-12 00:07:16,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:07:16,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:16,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:07:16,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:07:16,699 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-12 00:07:16,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 605 transitions, 21738 flow. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:16,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:16,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-12 00:07:16,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:17,723 INFO L129 PetriNetUnfolder]: 1498/3145 cut-off events. [2021-03-12 00:07:17,723 INFO L130 PetriNetUnfolder]: For 141753/141768 co-relation queries the response was YES. [2021-03-12 00:07:17,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31923 conditions, 3145 events. 1498/3145 cut-off events. For 141753/141768 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 24995 event pairs, 194 based on Foata normal form. 1/3146 useless extension candidates. Maximal degree in co-relation 31774. Up to 929 conditions per place. [2021-03-12 00:07:17,771 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 463 selfloop transitions, 197 changer transitions 4/670 dead transitions. [2021-03-12 00:07:17,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 670 transitions, 24331 flow [2021-03-12 00:07:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2021-03-12 00:07:17,772 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6607142857142857 [2021-03-12 00:07:17,772 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 185 transitions. [2021-03-12 00:07:17,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 185 transitions. [2021-03-12 00:07:17,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:17,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 185 transitions. [2021-03-12 00:07:17,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.125) internal successors, (185), 8 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:17,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:17,772 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:17,772 INFO L185 Difference]: Start difference. First operand has 447 places, 605 transitions, 21738 flow. Second operand 8 states and 185 transitions. [2021-03-12 00:07:17,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 670 transitions, 24331 flow [2021-03-12 00:07:18,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 670 transitions, 23883 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:18,303 INFO L241 Difference]: Finished difference. Result has 451 places, 622 transitions, 22338 flow [2021-03-12 00:07:18,304 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21338, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22338, PETRI_PLACES=451, PETRI_TRANSITIONS=622} [2021-03-12 00:07:18,304 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 428 predicate places. [2021-03-12 00:07:18,304 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 622 transitions, 22338 flow [2021-03-12 00:07:18,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:18,304 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:18,304 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:18,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-12 00:07:18,304 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:18,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1149406876, now seen corresponding path program 34 times [2021-03-12 00:07:18,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:18,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784205145] [2021-03-12 00:07:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:18,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:18,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:18,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:18,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784205145] [2021-03-12 00:07:18,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823212729] [2021-03-12 00:07:18,351 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:18,370 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:07:18,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:18,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:18,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:18,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:18,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:18,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:18,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:18,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:18,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:18,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:18,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:18,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:18,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:18,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:18,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:18,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:18,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:18,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,431 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:18,432 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:18,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:18,433 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:18,433 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,434 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:18,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:18,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:18,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:18,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:18,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:18,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:18,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:18,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:18,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:18,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:18,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:18,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642638961] [2021-03-12 00:07:18,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:18,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:18,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:18,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:18,459 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:18,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 622 transitions, 22338 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:18,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:18,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:18,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:19,444 INFO L129 PetriNetUnfolder]: 1501/3169 cut-off events. [2021-03-12 00:07:19,444 INFO L130 PetriNetUnfolder]: For 144768/144804 co-relation queries the response was YES. [2021-03-12 00:07:19,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31840 conditions, 3169 events. 1501/3169 cut-off events. For 144768/144804 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 25335 event pairs, 240 based on Foata normal form. 14/3183 useless extension candidates. Maximal degree in co-relation 31689. Up to 1049 conditions per place. [2021-03-12 00:07:19,492 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 457 selfloop transitions, 203 changer transitions 5/671 dead transitions. [2021-03-12 00:07:19,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 671 transitions, 24586 flow [2021-03-12 00:07:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2021-03-12 00:07:19,493 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6321428571428571 [2021-03-12 00:07:19,493 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 177 transitions. [2021-03-12 00:07:19,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 177 transitions. [2021-03-12 00:07:19,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:19,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 177 transitions. [2021-03-12 00:07:19,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:19,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:19,494 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:19,494 INFO L185 Difference]: Start difference. First operand has 451 places, 622 transitions, 22338 flow. Second operand 8 states and 177 transitions. [2021-03-12 00:07:19,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 671 transitions, 24586 flow [2021-03-12 00:07:20,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 671 transitions, 24351 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-03-12 00:07:20,024 INFO L241 Difference]: Finished difference. Result has 456 places, 632 transitions, 22839 flow [2021-03-12 00:07:20,024 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22117, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22839, PETRI_PLACES=456, PETRI_TRANSITIONS=632} [2021-03-12 00:07:20,025 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 433 predicate places. [2021-03-12 00:07:20,025 INFO L480 AbstractCegarLoop]: Abstraction has has 456 places, 632 transitions, 22839 flow [2021-03-12 00:07:20,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:20,025 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:20,025 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:20,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:20,245 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:20,245 INFO L82 PathProgramCache]: Analyzing trace with hash -445716306, now seen corresponding path program 35 times [2021-03-12 00:07:20,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:20,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130918218] [2021-03-12 00:07:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:20,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:20,258 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:20,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,265 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:20,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130918218] [2021-03-12 00:07:20,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796617727] [2021-03-12 00:07:20,310 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:20,329 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:20,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:20,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:20,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:20,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:20,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:20,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:20,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:20,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:20,336 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:20,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:20,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:20,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,339 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:20,340 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:20,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,369 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:07:20,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:20,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,372 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:20,372 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:20,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:20,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:20,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,395 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:20,396 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:20,398 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:20,398 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:20,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:20,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:20,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:20,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:20,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:20,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129427710] [2021-03-12 00:07:20,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:20,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:20,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:20,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:20,413 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:20,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 632 transitions, 22839 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:20,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:20,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:20,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:21,474 INFO L129 PetriNetUnfolder]: 1497/3145 cut-off events. [2021-03-12 00:07:21,474 INFO L130 PetriNetUnfolder]: For 147616/147631 co-relation queries the response was YES. [2021-03-12 00:07:21,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31854 conditions, 3145 events. 1497/3145 cut-off events. For 147616/147631 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 25010 event pairs, 178 based on Foata normal form. 1/3146 useless extension candidates. Maximal degree in co-relation 31700. Up to 1105 conditions per place. [2021-03-12 00:07:21,523 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 380 selfloop transitions, 267 changer transitions 4/657 dead transitions. [2021-03-12 00:07:21,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 657 transitions, 24471 flow [2021-03-12 00:07:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-03-12 00:07:21,524 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2021-03-12 00:07:21,524 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-03-12 00:07:21,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-03-12 00:07:21,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:21,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-03-12 00:07:21,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:21,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:21,525 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:21,525 INFO L185 Difference]: Start difference. First operand has 456 places, 632 transitions, 22839 flow. Second operand 8 states and 166 transitions. [2021-03-12 00:07:21,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 657 transitions, 24471 flow [2021-03-12 00:07:22,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 657 transitions, 24128 flow, removed 29 selfloop flow, removed 3 redundant places. [2021-03-12 00:07:22,077 INFO L241 Difference]: Finished difference. Result has 460 places, 630 transitions, 22942 flow [2021-03-12 00:07:22,077 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22528, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22942, PETRI_PLACES=460, PETRI_TRANSITIONS=630} [2021-03-12 00:07:22,077 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:07:22,077 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 630 transitions, 22942 flow [2021-03-12 00:07:22,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:22,077 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:22,077 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:22,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:22,280 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:22,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:22,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1867416450, now seen corresponding path program 36 times [2021-03-12 00:07:22,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:22,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137771874] [2021-03-12 00:07:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:22,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:22,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:22,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137771874] [2021-03-12 00:07:22,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001352226] [2021-03-12 00:07:22,326 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:07:22,365 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:07:22,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:22,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:22,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:22,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:22,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:22,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:22,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:22,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:22,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:22,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,410 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:22,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:22,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:22,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:22,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,417 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:22,417 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:22,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:22,422 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:22,422 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,423 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:22,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:22,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:22,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:22,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:22,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:22,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:22,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:22,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:22,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:22,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20660864] [2021-03-12 00:07:22,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:22,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:22,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:22,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:22,453 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:22,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 630 transitions, 22942 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:22,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:22,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:22,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:23,471 INFO L129 PetriNetUnfolder]: 1500/3160 cut-off events. [2021-03-12 00:07:23,472 INFO L130 PetriNetUnfolder]: For 151136/151151 co-relation queries the response was YES. [2021-03-12 00:07:23,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32125 conditions, 3160 events. 1500/3160 cut-off events. For 151136/151151 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 25218 event pairs, 257 based on Foata normal form. 1/3161 useless extension candidates. Maximal degree in co-relation 31971. Up to 1307 conditions per place. [2021-03-12 00:07:23,605 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 386 selfloop transitions, 262 changer transitions 4/658 dead transitions. [2021-03-12 00:07:23,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 658 transitions, 24741 flow [2021-03-12 00:07:23,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-12 00:07:23,606 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-12 00:07:23,606 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-12 00:07:23,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-12 00:07:23,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:23,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-12 00:07:23,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:23,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:23,607 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:23,607 INFO L185 Difference]: Start difference. First operand has 460 places, 630 transitions, 22942 flow. Second operand 8 states and 176 transitions. [2021-03-12 00:07:23,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 658 transitions, 24741 flow [2021-03-12 00:07:24,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 658 transitions, 23975 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-03-12 00:07:24,111 INFO L241 Difference]: Finished difference. Result has 460 places, 636 transitions, 22939 flow [2021-03-12 00:07:24,111 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22203, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22939, PETRI_PLACES=460, PETRI_TRANSITIONS=636} [2021-03-12 00:07:24,112 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:07:24,112 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 636 transitions, 22939 flow [2021-03-12 00:07:24,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:24,112 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:24,112 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:24,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable267 [2021-03-12 00:07:24,312 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:24,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1350948296, now seen corresponding path program 37 times [2021-03-12 00:07:24,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:24,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623714768] [2021-03-12 00:07:24,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:24,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:24,326 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:24,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:24,332 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:24,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:24,340 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:07:24,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:24,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:24,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:24,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623714768] [2021-03-12 00:07:24,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577630589] [2021-03-12 00:07:24,371 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:24,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:24,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:24,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:24,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:24,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:24,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:24,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:24,396 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:24,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:24,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:24,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,398 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:24,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:24,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,399 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:24,399 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:24,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:24,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:24,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:24,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:24,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:24,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:24,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:24,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:24,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,451 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:24,452 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,452 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:24,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:24,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:24,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:24,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:24,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:24,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:24,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:24,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:24,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:24,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:24,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:24,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357377290] [2021-03-12 00:07:24,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:24,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:24,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:24,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:24,509 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:24,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 636 transitions, 22939 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:24,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:24,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:24,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:25,676 INFO L129 PetriNetUnfolder]: 1498/3159 cut-off events. [2021-03-12 00:07:25,676 INFO L130 PetriNetUnfolder]: For 145939/145954 co-relation queries the response was YES. [2021-03-12 00:07:25,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31965 conditions, 3159 events. 1498/3159 cut-off events. For 145939/145954 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 25273 event pairs, 183 based on Foata normal form. 4/3163 useless extension candidates. Maximal degree in co-relation 31810. Up to 1042 conditions per place. [2021-03-12 00:07:25,731 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 406 selfloop transitions, 252 changer transitions 6/670 dead transitions. [2021-03-12 00:07:25,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 670 transitions, 24688 flow [2021-03-12 00:07:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:25,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:07:25,732 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:07:25,732 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:07:25,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:07:25,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:25,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:07:25,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:25,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:25,732 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:25,732 INFO L185 Difference]: Start difference. First operand has 460 places, 636 transitions, 22939 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:07:25,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 670 transitions, 24688 flow [2021-03-12 00:07:26,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 670 transitions, 24228 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:26,264 INFO L241 Difference]: Finished difference. Result has 461 places, 634 transitions, 22921 flow [2021-03-12 00:07:26,264 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22485, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22921, PETRI_PLACES=461, PETRI_TRANSITIONS=634} [2021-03-12 00:07:26,265 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 438 predicate places. [2021-03-12 00:07:26,265 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 634 transitions, 22921 flow [2021-03-12 00:07:26,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:26,265 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:26,265 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:26,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:26,466 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:26,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1836399208, now seen corresponding path program 38 times [2021-03-12 00:07:26,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:26,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881372791] [2021-03-12 00:07:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:26,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:26,476 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:26,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:26,482 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:26,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:26,490 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:26,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:26,505 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:26,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:26,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:26,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881372791] [2021-03-12 00:07:26,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975124105] [2021-03-12 00:07:26,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:26,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:26,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:26,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:26,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:26,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:26,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:26,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:26,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:26,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:26,565 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:26,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:26,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:26,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:26,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,568 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:26,568 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:26,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:26,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:26,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:26,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:26,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:26,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,616 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:26,616 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,617 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:26,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:26,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:26,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:26,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:26,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:26,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:26,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:26,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978658520] [2021-03-12 00:07:26,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:26,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:26,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:26,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:26,653 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:26,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 634 transitions, 22921 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:26,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:26,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:26,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:27,828 INFO L129 PetriNetUnfolder]: 1494/3129 cut-off events. [2021-03-12 00:07:27,828 INFO L130 PetriNetUnfolder]: For 145867/145903 co-relation queries the response was YES. [2021-03-12 00:07:27,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31920 conditions, 3129 events. 1494/3129 cut-off events. For 145867/145903 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 24761 event pairs, 183 based on Foata normal form. 12/3141 useless extension candidates. Maximal degree in co-relation 31766. Up to 1042 conditions per place. [2021-03-12 00:07:27,874 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 418 selfloop transitions, 237 changer transitions 4/665 dead transitions. [2021-03-12 00:07:27,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 665 transitions, 24610 flow [2021-03-12 00:07:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:07:27,875 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:07:27,875 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:07:27,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:07:27,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:27,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:07:27,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:27,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:27,876 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:27,876 INFO L185 Difference]: Start difference. First operand has 461 places, 634 transitions, 22921 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:07:27,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 665 transitions, 24610 flow [2021-03-12 00:07:28,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 665 transitions, 24054 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-12 00:07:28,444 INFO L241 Difference]: Finished difference. Result has 462 places, 634 transitions, 22839 flow [2021-03-12 00:07:28,444 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22371, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22839, PETRI_PLACES=462, PETRI_TRANSITIONS=634} [2021-03-12 00:07:28,445 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 439 predicate places. [2021-03-12 00:07:28,445 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 634 transitions, 22839 flow [2021-03-12 00:07:28,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:28,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:28,445 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:28,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,47 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:28,666 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:28,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:28,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1574961158, now seen corresponding path program 39 times [2021-03-12 00:07:28,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:28,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267116259] [2021-03-12 00:07:28,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:28,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:28,675 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:28,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:28,682 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:28,689 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:28,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:28,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:28,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:28,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267116259] [2021-03-12 00:07:28,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259692942] [2021-03-12 00:07:28,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:28,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:07:28,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:28,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:28,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:28,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:28,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:28,744 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:28,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:28,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,747 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:28,747 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:28,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:28,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:28,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:28,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:28,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,805 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:28,805 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:28,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:28,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:28,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:28,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,832 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:28,833 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:28,835 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:28,835 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:28,836 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:28,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:28,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:28,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100222932] [2021-03-12 00:07:28,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:28,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:28,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:28,853 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:28,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 634 transitions, 22839 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:28,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:28,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:28,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:30,011 INFO L129 PetriNetUnfolder]: 1492/3121 cut-off events. [2021-03-12 00:07:30,011 INFO L130 PetriNetUnfolder]: For 144187/144223 co-relation queries the response was YES. [2021-03-12 00:07:30,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31825 conditions, 3121 events. 1492/3121 cut-off events. For 144187/144223 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 24671 event pairs, 186 based on Foata normal form. 11/3132 useless extension candidates. Maximal degree in co-relation 31672. Up to 1042 conditions per place. [2021-03-12 00:07:30,059 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 417 selfloop transitions, 234 changer transitions 4/661 dead transitions. [2021-03-12 00:07:30,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 661 transitions, 24476 flow [2021-03-12 00:07:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:30,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-03-12 00:07:30,060 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2021-03-12 00:07:30,060 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-03-12 00:07:30,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-03-12 00:07:30,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:30,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-03-12 00:07:30,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:30,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:30,061 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:30,061 INFO L185 Difference]: Start difference. First operand has 462 places, 634 transitions, 22839 flow. Second operand 8 states and 167 transitions. [2021-03-12 00:07:30,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 661 transitions, 24476 flow [2021-03-12 00:07:30,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 661 transitions, 24010 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:30,599 INFO L241 Difference]: Finished difference. Result has 464 places, 632 transitions, 22771 flow [2021-03-12 00:07:30,600 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22377, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22771, PETRI_PLACES=464, PETRI_TRANSITIONS=632} [2021-03-12 00:07:30,600 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 441 predicate places. [2021-03-12 00:07:30,600 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 632 transitions, 22771 flow [2021-03-12 00:07:30,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:30,600 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:30,600 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:30,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:30,800 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:30,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:30,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1375501158, now seen corresponding path program 40 times [2021-03-12 00:07:30,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:30,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765376192] [2021-03-12 00:07:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:30,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:30,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,819 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:30,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765376192] [2021-03-12 00:07:30,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515904225] [2021-03-12 00:07:30,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:30,900 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:07:30,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:30,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:30,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:30,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:30,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:30,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:30,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:30,907 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:30,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:30,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,911 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:30,911 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:30,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:30,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:30,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:30,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:30,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,966 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:30,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:30,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:30,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:30,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:30,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:30,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:30,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,992 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:30,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:30,995 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:30,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:30,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:30,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:30,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:31,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:31,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:31,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:31,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531567002] [2021-03-12 00:07:31,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:31,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:31,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:31,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:31,019 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:31,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 632 transitions, 22771 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:31,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:31,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:31,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:32,157 INFO L129 PetriNetUnfolder]: 1491/3124 cut-off events. [2021-03-12 00:07:32,158 INFO L130 PetriNetUnfolder]: For 144064/144100 co-relation queries the response was YES. [2021-03-12 00:07:32,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31790 conditions, 3124 events. 1491/3124 cut-off events. For 144064/144100 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 24761 event pairs, 179 based on Foata normal form. 12/3136 useless extension candidates. Maximal degree in co-relation 31638. Up to 1108 conditions per place. [2021-03-12 00:07:32,219 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 385 selfloop transitions, 262 changer transitions 5/658 dead transitions. [2021-03-12 00:07:32,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 658 transitions, 24367 flow [2021-03-12 00:07:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:07:32,220 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:07:32,220 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:07:32,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:07:32,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:32,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:07:32,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:32,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:32,221 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:32,221 INFO L185 Difference]: Start difference. First operand has 464 places, 632 transitions, 22771 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:07:32,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 658 transitions, 24367 flow [2021-03-12 00:07:32,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 658 transitions, 23887 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:32,756 INFO L241 Difference]: Finished difference. Result has 464 places, 630 transitions, 22748 flow [2021-03-12 00:07:32,757 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22297, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22748, PETRI_PLACES=464, PETRI_TRANSITIONS=630} [2021-03-12 00:07:32,757 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 441 predicate places. [2021-03-12 00:07:32,757 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 630 transitions, 22748 flow [2021-03-12 00:07:32,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:32,757 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:32,757 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:32,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:32,957 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:32,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash -764455756, now seen corresponding path program 8 times [2021-03-12 00:07:32,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:32,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893432611] [2021-03-12 00:07:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:32,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:32,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:32,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:32,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:32,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:32,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:32,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:32,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:33,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893432611] [2021-03-12 00:07:33,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:07:33,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:07:33,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229588833] [2021-03-12 00:07:33,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:07:33,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:33,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:07:33,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:07:33,000 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 35 [2021-03-12 00:07:33,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 630 transitions, 22748 flow. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:33,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:33,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 35 [2021-03-12 00:07:33,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:33,955 INFO L129 PetriNetUnfolder]: 1489/3098 cut-off events. [2021-03-12 00:07:33,955 INFO L130 PetriNetUnfolder]: For 145767/145803 co-relation queries the response was YES. [2021-03-12 00:07:33,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31982 conditions, 3098 events. 1489/3098 cut-off events. For 145767/145803 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 24331 event pairs, 175 based on Foata normal form. 11/3109 useless extension candidates. Maximal degree in co-relation 31829. Up to 933 conditions per place. [2021-03-12 00:07:34,005 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 416 selfloop transitions, 236 changer transitions 4/662 dead transitions. [2021-03-12 00:07:34,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 662 transitions, 24492 flow [2021-03-12 00:07:34,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 183 transitions. [2021-03-12 00:07:34,006 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6535714285714286 [2021-03-12 00:07:34,006 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 183 transitions. [2021-03-12 00:07:34,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 183 transitions. [2021-03-12 00:07:34,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:34,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 183 transitions. [2021-03-12 00:07:34,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.875) internal successors, (183), 8 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:34,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:34,007 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:34,007 INFO L185 Difference]: Start difference. First operand has 464 places, 630 transitions, 22748 flow. Second operand 8 states and 183 transitions. [2021-03-12 00:07:34,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 662 transitions, 24492 flow [2021-03-12 00:07:34,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 662 transitions, 24120 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:34,626 INFO L241 Difference]: Finished difference. Result has 466 places, 631 transitions, 22896 flow [2021-03-12 00:07:34,626 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22380, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22896, PETRI_PLACES=466, PETRI_TRANSITIONS=631} [2021-03-12 00:07:34,626 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 443 predicate places. [2021-03-12 00:07:34,626 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 631 transitions, 22896 flow [2021-03-12 00:07:34,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:34,627 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:34,627 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:34,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-12 00:07:34,627 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1277462646, now seen corresponding path program 41 times [2021-03-12 00:07:34,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:34,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561880465] [2021-03-12 00:07:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:34,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:34,638 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:34,645 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:34,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,654 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:34,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,664 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:34,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:34,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:34,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561880465] [2021-03-12 00:07:34,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505302191] [2021-03-12 00:07:34,691 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:34,719 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:34,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:34,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:34,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:34,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:34,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:34,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:34,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:34,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:34,727 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:07:34,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:34,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:34,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:34,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,730 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:34,730 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:34,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:34,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:34,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:34,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:34,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,781 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:34,782 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,782 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:34,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:34,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:34,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:34,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:34,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:34,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:34,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:34,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:34,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:34,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:34,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:34,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735952163] [2021-03-12 00:07:34,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:34,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:34,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:34,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:34,816 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:34,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 631 transitions, 22896 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:34,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:34,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:34,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:35,878 INFO L129 PetriNetUnfolder]: 1488/3096 cut-off events. [2021-03-12 00:07:35,878 INFO L130 PetriNetUnfolder]: For 146155/146191 co-relation queries the response was YES. [2021-03-12 00:07:35,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32162 conditions, 3096 events. 1488/3096 cut-off events. For 146155/146191 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 24319 event pairs, 181 based on Foata normal form. 11/3107 useless extension candidates. Maximal degree in co-relation 32009. Up to 1104 conditions per place. [2021-03-12 00:07:35,927 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 384 selfloop transitions, 261 changer transitions 2/653 dead transitions. [2021-03-12 00:07:35,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 653 transitions, 24448 flow [2021-03-12 00:07:35,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-03-12 00:07:35,928 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2021-03-12 00:07:35,928 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-03-12 00:07:35,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-03-12 00:07:35,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:35,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-03-12 00:07:35,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:35,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:35,929 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:35,929 INFO L185 Difference]: Start difference. First operand has 466 places, 631 transitions, 22896 flow. Second operand 8 states and 167 transitions. [2021-03-12 00:07:35,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 653 transitions, 24448 flow [2021-03-12 00:07:36,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 653 transitions, 23801 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:36,463 INFO L241 Difference]: Finished difference. Result has 465 places, 630 transitions, 22751 flow [2021-03-12 00:07:36,463 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22253, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22751, PETRI_PLACES=465, PETRI_TRANSITIONS=630} [2021-03-12 00:07:36,463 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 442 predicate places. [2021-03-12 00:07:36,463 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 630 transitions, 22751 flow [2021-03-12 00:07:36,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:36,463 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:36,463 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:36,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-03-12 00:07:36,664 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:36,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:36,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1584850390, now seen corresponding path program 42 times [2021-03-12 00:07:36,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:36,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859935360] [2021-03-12 00:07:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:36,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,693 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:36,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:36,701 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:07:36,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:36,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:36,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:36,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859935360] [2021-03-12 00:07:36,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412949705] [2021-03-12 00:07:36,736 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:36,758 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:07:36,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:36,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:36,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:36,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:36,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:36,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:36,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:36,774 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:36,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:36,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:36,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:36,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:07:36,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,777 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:36,778 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,812 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:36,812 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,813 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:36,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:36,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:36,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:36,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:36,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:36,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:36,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:36,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:36,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:36,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579815305] [2021-03-12 00:07:36,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:36,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:36,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:36,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:36,843 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:36,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 630 transitions, 22751 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:36,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:36,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:36,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:37,917 INFO L129 PetriNetUnfolder]: 1487/3090 cut-off events. [2021-03-12 00:07:37,917 INFO L130 PetriNetUnfolder]: For 145177/145192 co-relation queries the response was YES. [2021-03-12 00:07:37,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31900 conditions, 3090 events. 1487/3090 cut-off events. For 145177/145192 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 24265 event pairs, 232 based on Foata normal form. 2/3092 useless extension candidates. Maximal degree in co-relation 31748. Up to 1048 conditions per place. [2021-03-12 00:07:37,964 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 456 selfloop transitions, 199 changer transitions 3/664 dead transitions. [2021-03-12 00:07:37,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 664 transitions, 24522 flow [2021-03-12 00:07:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:07:37,965 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:07:37,965 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:07:37,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:07:37,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:37,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:07:37,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:37,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:37,965 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:37,965 INFO L185 Difference]: Start difference. First operand has 465 places, 630 transitions, 22751 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:07:37,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 664 transitions, 24522 flow [2021-03-12 00:07:38,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 664 transitions, 23935 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-03-12 00:07:38,457 INFO L241 Difference]: Finished difference. Result has 463 places, 629 transitions, 22540 flow [2021-03-12 00:07:38,457 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22180, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22540, PETRI_PLACES=463, PETRI_TRANSITIONS=629} [2021-03-12 00:07:38,458 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 440 predicate places. [2021-03-12 00:07:38,458 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 629 transitions, 22540 flow [2021-03-12 00:07:38,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:38,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:38,458 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:38,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:38,658 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:38,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1260475512, now seen corresponding path program 43 times [2021-03-12 00:07:38,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:38,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136611708] [2021-03-12 00:07:38,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:38,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,674 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:07:38,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:38,682 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:07:38,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:38,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:38,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:38,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136611708] [2021-03-12 00:07:38,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059323085] [2021-03-12 00:07:38,718 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:38,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:38,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:38,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:38,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:38,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,754 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:07:38,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:07:38,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:38,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:07:38,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,757 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:38,758 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:38,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:07:38,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:38,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:38,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:38,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:38,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:38,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,777 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:38,778 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,778 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:38,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:38,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:38,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:38,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:38,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:38,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:38,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:38,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:38,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:38,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:38,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:38,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:38,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:38,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:38,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:38,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786236490] [2021-03-12 00:07:38,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:38,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:38,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:38,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:38,838 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:38,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 629 transitions, 22540 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:38,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:38,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:38,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:39,928 INFO L129 PetriNetUnfolder]: 1515/3214 cut-off events. [2021-03-12 00:07:39,928 INFO L130 PetriNetUnfolder]: For 143836/143851 co-relation queries the response was YES. [2021-03-12 00:07:39,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32175 conditions, 3214 events. 1515/3214 cut-off events. For 143836/143851 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 25851 event pairs, 232 based on Foata normal form. 1/3215 useless extension candidates. Maximal degree in co-relation 32023. Up to 1048 conditions per place. [2021-03-12 00:07:39,977 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 451 selfloop transitions, 217 changer transitions 2/676 dead transitions. [2021-03-12 00:07:39,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 676 transitions, 24693 flow [2021-03-12 00:07:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:39,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:07:39,978 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:07:39,978 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:07:39,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:07:39,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:39,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:07:39,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:39,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:39,979 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:39,979 INFO L185 Difference]: Start difference. First operand has 463 places, 629 transitions, 22540 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:07:39,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 676 transitions, 24693 flow [2021-03-12 00:07:40,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 676 transitions, 24283 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:40,492 INFO L241 Difference]: Finished difference. Result has 468 places, 636 transitions, 22883 flow [2021-03-12 00:07:40,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22149, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22883, PETRI_PLACES=468, PETRI_TRANSITIONS=636} [2021-03-12 00:07:40,492 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 445 predicate places. [2021-03-12 00:07:40,492 INFO L480 AbstractCegarLoop]: Abstraction has has 468 places, 636 transitions, 22883 flow [2021-03-12 00:07:40,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:40,493 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:40,493 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:40,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable293 [2021-03-12 00:07:40,693 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:40,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2047567350, now seen corresponding path program 44 times [2021-03-12 00:07:40,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:40,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071490726] [2021-03-12 00:07:40,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:40,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:07:40,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:40,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:40,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:40,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071490726] [2021-03-12 00:07:40,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186800157] [2021-03-12 00:07:40,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:40,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:40,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:40,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:40,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:40,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:40,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:40,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:40,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:40,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:40,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:40,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:40,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:40,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:07:40,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,840 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:40,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:40,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:40,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:40,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,844 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:40,845 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:40,846 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:40,847 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,847 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:40,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:40,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:40,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:40,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:40,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:40,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:40,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:40,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:40,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:40,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:40,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750449490] [2021-03-12 00:07:40,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:40,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:40,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:40,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:40,873 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:40,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 636 transitions, 22883 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:40,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:40,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:40,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:41,881 INFO L129 PetriNetUnfolder]: 1514/3208 cut-off events. [2021-03-12 00:07:41,882 INFO L130 PetriNetUnfolder]: For 146945/146960 co-relation queries the response was YES. [2021-03-12 00:07:41,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32487 conditions, 3208 events. 1514/3208 cut-off events. For 146945/146960 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 25776 event pairs, 258 based on Foata normal form. 4/3212 useless extension candidates. Maximal degree in co-relation 32332. Up to 1048 conditions per place. [2021-03-12 00:07:41,931 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 420 selfloop transitions, 242 changer transitions 6/674 dead transitions. [2021-03-12 00:07:41,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 674 transitions, 24827 flow [2021-03-12 00:07:41,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:41,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:41,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2021-03-12 00:07:41,932 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6321428571428571 [2021-03-12 00:07:41,932 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 177 transitions. [2021-03-12 00:07:41,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 177 transitions. [2021-03-12 00:07:41,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:41,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 177 transitions. [2021-03-12 00:07:41,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:41,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:41,932 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:41,932 INFO L185 Difference]: Start difference. First operand has 468 places, 636 transitions, 22883 flow. Second operand 8 states and 177 transitions. [2021-03-12 00:07:41,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 674 transitions, 24827 flow [2021-03-12 00:07:42,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 674 transitions, 24353 flow, removed 28 selfloop flow, removed 7 redundant places. [2021-03-12 00:07:42,449 INFO L241 Difference]: Finished difference. Result has 466 places, 640 transitions, 23060 flow [2021-03-12 00:07:42,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22443, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23060, PETRI_PLACES=466, PETRI_TRANSITIONS=640} [2021-03-12 00:07:42,449 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 443 predicate places. [2021-03-12 00:07:42,449 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 640 transitions, 23060 flow [2021-03-12 00:07:42,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:42,449 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:42,449 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:42,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:42,650 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:42,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:42,650 INFO L82 PathProgramCache]: Analyzing trace with hash -2058441554, now seen corresponding path program 45 times [2021-03-12 00:07:42,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:42,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338368416] [2021-03-12 00:07:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:42,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:42,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:42,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:42,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:42,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:42,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338368416] [2021-03-12 00:07:42,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504250371] [2021-03-12 00:07:42,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:42,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:07:42,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:42,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:42,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:42,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:42,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:42,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:42,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:42,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:42,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:42,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:42,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,742 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:42,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:42,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:42,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:42,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,745 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:42,746 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:42,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:42,747 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:42,748 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,748 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:42,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:42,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:42,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:42,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:42,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:42,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:42,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:42,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:42,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:42,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:42,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:07:42,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762385127] [2021-03-12 00:07:42,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:07:42,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:42,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:07:42,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:07:42,769 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:42,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 640 transitions, 23060 flow. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:42,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:42,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:42,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:43,767 INFO L129 PetriNetUnfolder]: 1510/3174 cut-off events. [2021-03-12 00:07:43,768 INFO L130 PetriNetUnfolder]: For 145338/145353 co-relation queries the response was YES. [2021-03-12 00:07:43,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32385 conditions, 3174 events. 1510/3174 cut-off events. For 145338/145353 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 25248 event pairs, 257 based on Foata normal form. 7/3181 useless extension candidates. Maximal degree in co-relation 32230. Up to 1048 conditions per place. [2021-03-12 00:07:43,817 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 417 selfloop transitions, 240 changer transitions 7/670 dead transitions. [2021-03-12 00:07:43,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 670 transitions, 24770 flow [2021-03-12 00:07:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-12 00:07:43,818 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-12 00:07:43,818 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-12 00:07:43,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-12 00:07:43,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:43,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-12 00:07:43,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:43,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:43,819 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:43,819 INFO L185 Difference]: Start difference. First operand has 466 places, 640 transitions, 23060 flow. Second operand 8 states and 176 transitions. [2021-03-12 00:07:43,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 670 transitions, 24770 flow [2021-03-12 00:07:44,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 670 transitions, 24384 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-12 00:07:44,350 INFO L241 Difference]: Finished difference. Result has 469 places, 637 transitions, 23070 flow [2021-03-12 00:07:44,351 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22680, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23070, PETRI_PLACES=469, PETRI_TRANSITIONS=637} [2021-03-12 00:07:44,351 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 446 predicate places. [2021-03-12 00:07:44,351 INFO L480 AbstractCegarLoop]: Abstraction has has 469 places, 637 transitions, 23070 flow [2021-03-12 00:07:44,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 10 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:44,351 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:44,351 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:44,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable299 [2021-03-12 00:07:44,552 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash -460522686, now seen corresponding path program 46 times [2021-03-12 00:07:44,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:44,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56539795] [2021-03-12 00:07:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:44,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:44,574 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:44,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:44,583 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:44,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:44,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:44,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56539795] [2021-03-12 00:07:44,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237356717] [2021-03-12 00:07:44,609 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:44,629 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:07:44,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:44,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:44,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:44,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:44,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:44,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,661 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:07:44,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:44,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:44,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,664 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:44,664 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:44,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:44,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:44,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:44,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:44,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:44,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,682 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:44,683 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,683 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:44,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:44,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:44,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:44,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:44,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:44,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:44,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:44,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:44,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:44,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:44,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:44,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:07:44,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607211170] [2021-03-12 00:07:44,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:07:44,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:44,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:07:44,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:07:44,724 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:44,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 637 transitions, 23070 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:44,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:44,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:44,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:45,753 INFO L129 PetriNetUnfolder]: 1502/3134 cut-off events. [2021-03-12 00:07:45,753 INFO L130 PetriNetUnfolder]: For 145096/145111 co-relation queries the response was YES. [2021-03-12 00:07:45,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32235 conditions, 3134 events. 1502/3134 cut-off events. For 145096/145111 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 24741 event pairs, 256 based on Foata normal form. 2/3136 useless extension candidates. Maximal degree in co-relation 32080. Up to 1048 conditions per place. [2021-03-12 00:07:45,806 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 447 selfloop transitions, 210 changer transitions 4/667 dead transitions. [2021-03-12 00:07:45,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 667 transitions, 24813 flow [2021-03-12 00:07:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:45,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:07:45,807 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:07:45,807 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:07:45,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:07:45,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:45,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:07:45,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:45,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:45,807 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:45,807 INFO L185 Difference]: Start difference. First operand has 469 places, 637 transitions, 23070 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:07:45,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 667 transitions, 24813 flow [2021-03-12 00:07:46,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 667 transitions, 24336 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:46,345 INFO L241 Difference]: Finished difference. Result has 472 places, 639 transitions, 23091 flow [2021-03-12 00:07:46,346 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22602, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23091, PETRI_PLACES=472, PETRI_TRANSITIONS=639} [2021-03-12 00:07:46,346 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 449 predicate places. [2021-03-12 00:07:46,346 INFO L480 AbstractCegarLoop]: Abstraction has has 472 places, 639 transitions, 23091 flow [2021-03-12 00:07:46,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:46,346 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:46,346 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:46,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable302 [2021-03-12 00:07:46,547 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:46,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:46,547 INFO L82 PathProgramCache]: Analyzing trace with hash 430435894, now seen corresponding path program 47 times [2021-03-12 00:07:46,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:46,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107449763] [2021-03-12 00:07:46,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:46,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:46,566 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:46,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:46,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:46,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:46,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107449763] [2021-03-12 00:07:46,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032407560] [2021-03-12 00:07:46,592 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:46,612 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:46,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:46,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:46,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:46,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:46,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:46,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,657 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:07:46,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:46,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:46,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,661 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:46,661 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:46,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:46,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:46,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:46,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:46,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,681 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:46,682 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:46,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:46,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:46,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:46,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:46,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:46,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:46,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,703 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:46,704 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:46,705 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:46,706 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:46,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:46,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:46,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:46,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:46,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:07:46,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173664190] [2021-03-12 00:07:46,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:07:46,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:46,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:07:46,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:07:46,721 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:46,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 639 transitions, 23091 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:46,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:46,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:46,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:47,829 INFO L129 PetriNetUnfolder]: 1500/3126 cut-off events. [2021-03-12 00:07:47,829 INFO L130 PetriNetUnfolder]: For 145069/145105 co-relation queries the response was YES. [2021-03-12 00:07:47,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32153 conditions, 3126 events. 1500/3126 cut-off events. For 145069/145105 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 24661 event pairs, 244 based on Foata normal form. 11/3137 useless extension candidates. Maximal degree in co-relation 31997. Up to 1048 conditions per place. [2021-03-12 00:07:47,877 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 449 selfloop transitions, 204 changer transitions 4/663 dead transitions. [2021-03-12 00:07:47,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 663 transitions, 24713 flow [2021-03-12 00:07:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:07:47,878 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:07:47,878 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:07:47,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:07:47,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:47,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:07:47,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:47,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:47,879 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:47,879 INFO L185 Difference]: Start difference. First operand has 472 places, 639 transitions, 23091 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:07:47,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 663 transitions, 24713 flow [2021-03-12 00:07:48,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 663 transitions, 24338 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:48,466 INFO L241 Difference]: Finished difference. Result has 474 places, 637 transitions, 23055 flow [2021-03-12 00:07:48,466 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22722, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23055, PETRI_PLACES=474, PETRI_TRANSITIONS=637} [2021-03-12 00:07:48,466 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 451 predicate places. [2021-03-12 00:07:48,466 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 637 transitions, 23055 flow [2021-03-12 00:07:48,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:48,466 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:48,466 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:48,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:48,667 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:48,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:48,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1145630146, now seen corresponding path program 48 times [2021-03-12 00:07:48,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:48,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433923639] [2021-03-12 00:07:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:48,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:48,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:48,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:48,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:48,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:48,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433923639] [2021-03-12 00:07:48,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592423268] [2021-03-12 00:07:48,708 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:48,727 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:07:48,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:48,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:48,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:48,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:48,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:48,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:48,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:48,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:48,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:48,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:48,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:48,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:48,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:48,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,772 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:48,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:48,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:48,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,775 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:48,776 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:48,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:07:48,777 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:48,778 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,778 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:07:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:48,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:48,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:07:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:48,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:07:48,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:48,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:48,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:48,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:48,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214704779] [2021-03-12 00:07:48,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:48,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:48,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:48,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:48,812 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:48,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 637 transitions, 23055 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:48,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:48,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:48,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:49,899 INFO L129 PetriNetUnfolder]: 1499/3120 cut-off events. [2021-03-12 00:07:49,899 INFO L130 PetriNetUnfolder]: For 145460/145475 co-relation queries the response was YES. [2021-03-12 00:07:49,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32105 conditions, 3120 events. 1499/3120 cut-off events. For 145460/145475 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 24554 event pairs, 251 based on Foata normal form. 3/3123 useless extension candidates. Maximal degree in co-relation 31950. Up to 1048 conditions per place. [2021-03-12 00:07:49,952 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 441 selfloop transitions, 214 changer transitions 5/666 dead transitions. [2021-03-12 00:07:49,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 666 transitions, 24795 flow [2021-03-12 00:07:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-03-12 00:07:49,953 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-12 00:07:49,953 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-03-12 00:07:49,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-03-12 00:07:49,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:49,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-03-12 00:07:49,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:49,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:49,954 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:49,954 INFO L185 Difference]: Start difference. First operand has 474 places, 637 transitions, 23055 flow. Second operand 8 states and 175 transitions. [2021-03-12 00:07:49,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 666 transitions, 24795 flow [2021-03-12 00:07:50,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 666 transitions, 24373 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:50,492 INFO L241 Difference]: Finished difference. Result has 474 places, 638 transitions, 23112 flow [2021-03-12 00:07:50,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22645, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23112, PETRI_PLACES=474, PETRI_TRANSITIONS=638} [2021-03-12 00:07:50,492 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 451 predicate places. [2021-03-12 00:07:50,492 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 638 transitions, 23112 flow [2021-03-12 00:07:50,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:50,492 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:50,492 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:50,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable310 [2021-03-12 00:07:50,695 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:50,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1961112842, now seen corresponding path program 49 times [2021-03-12 00:07:50,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:50,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427088541] [2021-03-12 00:07:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:50,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:50,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:50,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:50,722 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:50,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:50,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:50,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:50,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427088541] [2021-03-12 00:07:50,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743599891] [2021-03-12 00:07:50,748 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:50,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:50,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:50,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:50,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:50,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:50,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:50,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:50,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:50,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:50,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:50,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:50,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,789 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:07:50,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:50,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:50,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,792 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:50,793 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:50,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:50,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:50,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:50,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:50,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,810 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:50,810 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:50,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:50,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:50,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:50,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:50,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:50,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:50,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,829 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:50,829 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:50,831 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:50,831 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:50,832 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:50,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:50,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:50,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008696913] [2021-03-12 00:07:50,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:50,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:50,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:50,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:50,845 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:50,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 638 transitions, 23112 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:50,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:50,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:50,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:51,988 INFO L129 PetriNetUnfolder]: 1495/3095 cut-off events. [2021-03-12 00:07:51,988 INFO L130 PetriNetUnfolder]: For 145105/145120 co-relation queries the response was YES. [2021-03-12 00:07:52,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31979 conditions, 3095 events. 1495/3095 cut-off events. For 145105/145120 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 24250 event pairs, 253 based on Foata normal form. 2/3097 useless extension candidates. Maximal degree in co-relation 31823. Up to 1048 conditions per place. [2021-03-12 00:07:52,042 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 448 selfloop transitions, 205 changer transitions 5/664 dead transitions. [2021-03-12 00:07:52,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 664 transitions, 24757 flow [2021-03-12 00:07:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:07:52,043 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:07:52,044 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:07:52,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:07:52,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:52,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:07:52,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:52,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:52,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:52,044 INFO L185 Difference]: Start difference. First operand has 474 places, 638 transitions, 23112 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:07:52,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 664 transitions, 24757 flow [2021-03-12 00:07:52,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 664 transitions, 24351 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-12 00:07:52,587 INFO L241 Difference]: Finished difference. Result has 477 places, 636 transitions, 23043 flow [2021-03-12 00:07:52,587 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22712, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23043, PETRI_PLACES=477, PETRI_TRANSITIONS=636} [2021-03-12 00:07:52,587 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 454 predicate places. [2021-03-12 00:07:52,587 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 636 transitions, 23043 flow [2021-03-12 00:07:52,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:52,588 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:52,588 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:52,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:52,809 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:52,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2075558372, now seen corresponding path program 50 times [2021-03-12 00:07:52,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:52,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809970923] [2021-03-12 00:07:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:52,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:52,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:52,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:52,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:52,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,838 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:52,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:52,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:52,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809970923] [2021-03-12 00:07:52,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997622526] [2021-03-12 00:07:52,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:52,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:07:52,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:52,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:52,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:52,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:52,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:52,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:52,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:52,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:07:52,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:52,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:52,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:52,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:52,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:52,969 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:52,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:52,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:52,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:52,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:52,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,973 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:52,974 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,976 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:52,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:52,978 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:52,979 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:52,979 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:07:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:52,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:52,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:52,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-12 00:07:52,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012613761] [2021-03-12 00:07:52,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-12 00:07:52,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:52,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-12 00:07:52,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-03-12 00:07:52,992 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:52,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 636 transitions, 23043 flow. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:52,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:52,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:52,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:54,054 INFO L129 PetriNetUnfolder]: 1493/3079 cut-off events. [2021-03-12 00:07:54,055 INFO L130 PetriNetUnfolder]: For 145882/145918 co-relation queries the response was YES. [2021-03-12 00:07:54,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31891 conditions, 3079 events. 1493/3079 cut-off events. For 145882/145918 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 24021 event pairs, 246 based on Foata normal form. 11/3090 useless extension candidates. Maximal degree in co-relation 31734. Up to 1048 conditions per place. [2021-03-12 00:07:54,106 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 444 selfloop transitions, 209 changer transitions 2/661 dead transitions. [2021-03-12 00:07:54,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 661 transitions, 24701 flow [2021-03-12 00:07:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:07:54,107 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:07:54,107 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:07:54,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:07:54,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:54,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:07:54,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:54,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:54,108 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:54,108 INFO L185 Difference]: Start difference. First operand has 477 places, 636 transitions, 23043 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:07:54,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 661 transitions, 24701 flow [2021-03-12 00:07:54,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 661 transitions, 24323 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-12 00:07:54,670 INFO L241 Difference]: Finished difference. Result has 480 places, 638 transitions, 23136 flow [2021-03-12 00:07:54,670 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22673, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23136, PETRI_PLACES=480, PETRI_TRANSITIONS=638} [2021-03-12 00:07:54,670 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 457 predicate places. [2021-03-12 00:07:54,670 INFO L480 AbstractCegarLoop]: Abstraction has has 480 places, 638 transitions, 23136 flow [2021-03-12 00:07:54,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:54,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:54,671 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:54,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable318 [2021-03-12 00:07:54,871 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1428706328, now seen corresponding path program 51 times [2021-03-12 00:07:54,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:54,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543614705] [2021-03-12 00:07:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:54,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:54,885 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:54,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:54,895 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:54,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:54,906 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:07:54,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:54,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:54,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:54,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543614705] [2021-03-12 00:07:54,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550876897] [2021-03-12 00:07:54,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:54,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:07:54,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:54,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:54,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:54,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:54,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:54,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:54,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:54,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:54,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:55,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:55,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:55,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:55,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:55,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:55,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:55,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:55,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:55,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:55,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:07:55,055 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:07:55,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:55,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:07:55,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:55,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:07:55,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,059 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:55,059 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:55,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:55,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,065 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:55,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:55,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:55,067 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:55,067 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:55,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:07:55,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:55,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:55,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:55,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-12 00:07:55,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055082394] [2021-03-12 00:07:55,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-12 00:07:55,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:55,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-12 00:07:55,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-12 00:07:55,080 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:55,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 638 transitions, 23136 flow. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:55,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:55,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:55,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:56,214 INFO L129 PetriNetUnfolder]: 1496/3104 cut-off events. [2021-03-12 00:07:56,214 INFO L130 PetriNetUnfolder]: For 146018/146033 co-relation queries the response was YES. [2021-03-12 00:07:56,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32006 conditions, 3104 events. 1496/3104 cut-off events. For 146018/146033 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 24342 event pairs, 243 based on Foata normal form. 2/3106 useless extension candidates. Maximal degree in co-relation 31848. Up to 1357 conditions per place. [2021-03-12 00:07:56,260 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 372 selfloop transitions, 277 changer transitions 4/659 dead transitions. [2021-03-12 00:07:56,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 659 transitions, 24695 flow [2021-03-12 00:07:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:07:56,261 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:07:56,261 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:07:56,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:07:56,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:56,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:07:56,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:56,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:56,262 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:56,262 INFO L185 Difference]: Start difference. First operand has 480 places, 638 transitions, 23136 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:07:56,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 659 transitions, 24695 flow [2021-03-12 00:07:56,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 659 transitions, 24253 flow, removed 11 selfloop flow, removed 8 redundant places. [2021-03-12 00:07:56,789 INFO L241 Difference]: Finished difference. Result has 479 places, 639 transitions, 23287 flow [2021-03-12 00:07:56,789 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22702, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23287, PETRI_PLACES=479, PETRI_TRANSITIONS=639} [2021-03-12 00:07:56,789 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 456 predicate places. [2021-03-12 00:07:56,789 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 639 transitions, 23287 flow [2021-03-12 00:07:56,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:56,789 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:56,789 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:56,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable322 [2021-03-12 00:07:56,991 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:56,991 INFO L82 PathProgramCache]: Analyzing trace with hash 203547258, now seen corresponding path program 52 times [2021-03-12 00:07:56,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:56,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647359901] [2021-03-12 00:07:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:57,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:57,020 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:57,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,030 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:07:57,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:57,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647359901] [2021-03-12 00:07:57,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69507178] [2021-03-12 00:07:57,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:07:57,100 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:07:57,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:07:57,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:07:57,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:07:57,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:57,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:07:57,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:57,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:57,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:57,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:07:57,109 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:07:57,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:07:57,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:07:57,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,112 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:57,112 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:57,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:57,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:57,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:57,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:07:57,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:07:57,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:57,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,145 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:07:57,145 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:07:57,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:57,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:57,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:57,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:07:57,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:07:57,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,166 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:57,166 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:07:57,168 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:07:57,169 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:07:57,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:07:57,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:57,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:07:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:57,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:07:57,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:07:57,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265293234] [2021-03-12 00:07:57,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:07:57,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:57,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:07:57,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:07:57,188 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:07:57,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 639 transitions, 23287 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:57,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:57,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:07:57,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:07:58,296 INFO L129 PetriNetUnfolder]: 1494/3108 cut-off events. [2021-03-12 00:07:58,296 INFO L130 PetriNetUnfolder]: For 147908/147923 co-relation queries the response was YES. [2021-03-12 00:07:58,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32065 conditions, 3108 events. 1494/3108 cut-off events. For 147908/147923 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 24452 event pairs, 250 based on Foata normal form. 1/3109 useless extension candidates. Maximal degree in co-relation 31908. Up to 1357 conditions per place. [2021-03-12 00:07:58,345 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 374 selfloop transitions, 273 changer transitions 4/657 dead transitions. [2021-03-12 00:07:58,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 657 transitions, 24771 flow [2021-03-12 00:07:58,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:07:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:07:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:07:58,360 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:07:58,360 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:07:58,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:07:58,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:07:58,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:07:58,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:58,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:58,360 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:58,360 INFO L185 Difference]: Start difference. First operand has 479 places, 639 transitions, 23287 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:07:58,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 657 transitions, 24771 flow [2021-03-12 00:07:58,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 657 transitions, 24209 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:07:58,934 INFO L241 Difference]: Finished difference. Result has 480 places, 637 transitions, 23191 flow [2021-03-12 00:07:58,935 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22731, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=23191, PETRI_PLACES=480, PETRI_TRANSITIONS=637} [2021-03-12 00:07:58,935 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 457 predicate places. [2021-03-12 00:07:58,935 INFO L480 AbstractCegarLoop]: Abstraction has has 480 places, 637 transitions, 23191 flow [2021-03-12 00:07:58,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:58,935 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:07:58,935 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:07:59,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable326 [2021-03-12 00:07:59,136 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:07:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:07:59,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2060348538, now seen corresponding path program 9 times [2021-03-12 00:07:59,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:07:59,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571934762] [2021-03-12 00:07:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:07:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:07:59,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:59,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:07:59,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:59,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:07:59,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:59,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:07:59,149 INFO L142 QuantifierPusher]: treesize reduction 19, result has 53.7 percent of original size [2021-03-12 00:07:59,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:07:59,166 INFO L142 QuantifierPusher]: treesize reduction 29, result has 25.6 percent of original size [2021-03-12 00:07:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:07:59,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:07:59,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-12 00:07:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:07:59,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571934762] [2021-03-12 00:07:59,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:07:59,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-12 00:07:59,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934809247] [2021-03-12 00:07:59,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:07:59,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:07:59,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:07:59,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:07:59,178 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 35 [2021-03-12 00:07:59,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 637 transitions, 23191 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:07:59,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:07:59,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 35 [2021-03-12 00:07:59,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:00,162 INFO L129 PetriNetUnfolder]: 1461/3047 cut-off events. [2021-03-12 00:08:00,162 INFO L130 PetriNetUnfolder]: For 143878/143924 co-relation queries the response was YES. [2021-03-12 00:08:00,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31268 conditions, 3047 events. 1461/3047 cut-off events. For 143878/143924 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 23986 event pairs, 179 based on Foata normal form. 24/3042 useless extension candidates. Maximal degree in co-relation 31111. Up to 2069 conditions per place. [2021-03-12 00:08:00,205 INFO L132 encePairwiseOnDemand]: 29/35 looper letters, 463 selfloop transitions, 142 changer transitions 33/671 dead transitions. [2021-03-12 00:08:00,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 671 transitions, 25151 flow [2021-03-12 00:08:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-12 00:08:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-12 00:08:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2021-03-12 00:08:00,206 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-12 00:08:00,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 140 transitions. [2021-03-12 00:08:00,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 140 transitions. [2021-03-12 00:08:00,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:00,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 140 transitions. [2021-03-12 00:08:00,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:00,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:00,206 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:00,206 INFO L185 Difference]: Start difference. First operand has 480 places, 637 transitions, 23191 flow. Second operand 6 states and 140 transitions. [2021-03-12 00:08:00,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 671 transitions, 25151 flow [2021-03-12 00:08:00,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 671 transitions, 24715 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:00,690 INFO L241 Difference]: Finished difference. Result has 478 places, 606 transitions, 22133 flow [2021-03-12 00:08:00,691 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22773, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=22133, PETRI_PLACES=478, PETRI_TRANSITIONS=606} [2021-03-12 00:08:00,691 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 455 predicate places. [2021-03-12 00:08:00,691 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 606 transitions, 22133 flow [2021-03-12 00:08:00,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:00,691 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:00,691 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:00,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-03-12 00:08:00,691 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:00,691 INFO L82 PathProgramCache]: Analyzing trace with hash -805539792, now seen corresponding path program 53 times [2021-03-12 00:08:00,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:00,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467867500] [2021-03-12 00:08:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:00,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:00,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:00,720 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:00,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:00,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:00,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467867500] [2021-03-12 00:08:00,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893902904] [2021-03-12 00:08:00,745 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:00,764 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:00,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:00,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:00,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:00,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:00,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:00,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:00,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,797 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:00,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:00,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:00,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,800 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:00,801 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:00,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:00,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:00,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:00,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,818 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:00,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:00,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,820 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:00,820 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,820 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:00,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:00,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:00,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:00,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:00,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:00,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:00,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:00,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:00,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:00,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:08:00,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843808500] [2021-03-12 00:08:00,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:00,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:00,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:00,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:00,853 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:00,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 606 transitions, 22133 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:00,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:00,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:00,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:01,858 INFO L129 PetriNetUnfolder]: 1472/3012 cut-off events. [2021-03-12 00:08:01,858 INFO L130 PetriNetUnfolder]: For 143827/143842 co-relation queries the response was YES. [2021-03-12 00:08:01,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31062 conditions, 3012 events. 1472/3012 cut-off events. For 143827/143842 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 23039 event pairs, 249 based on Foata normal form. 2/3014 useless extension candidates. Maximal degree in co-relation 30905. Up to 1294 conditions per place. [2021-03-12 00:08:01,906 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 355 selfloop transitions, 264 changer transitions 4/629 dead transitions. [2021-03-12 00:08:01,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 629 transitions, 23623 flow [2021-03-12 00:08:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:08:01,907 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:08:01,907 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:08:01,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:08:01,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:01,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:08:01,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:01,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:01,908 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:01,908 INFO L185 Difference]: Start difference. First operand has 478 places, 606 transitions, 22133 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:08:01,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 629 transitions, 23623 flow [2021-03-12 00:08:02,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 629 transitions, 22419 flow, removed 52 selfloop flow, removed 31 redundant places. [2021-03-12 00:08:02,397 INFO L241 Difference]: Finished difference. Result has 424 places, 608 transitions, 21511 flow [2021-03-12 00:08:02,398 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20949, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21511, PETRI_PLACES=424, PETRI_TRANSITIONS=608} [2021-03-12 00:08:02,398 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 401 predicate places. [2021-03-12 00:08:02,398 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 608 transitions, 21511 flow [2021-03-12 00:08:02,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:02,398 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:02,398 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:02,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable332 [2021-03-12 00:08:02,599 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1756593930, now seen corresponding path program 54 times [2021-03-12 00:08:02,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:02,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948540923] [2021-03-12 00:08:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:02,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:02,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:02,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948540923] [2021-03-12 00:08:02,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869723800] [2021-03-12 00:08:02,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:02,675 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:02,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:02,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:02,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:02,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:02,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:02,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:02,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:02,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:02,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:02,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,719 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:02,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:02,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:02,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,722 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:02,723 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:02,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:02,724 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:02,725 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,725 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:02,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:02,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:02,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:02,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:02,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:02,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:02,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:02,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:02,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:02,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:02,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:02,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898680474] [2021-03-12 00:08:02,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:02,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:02,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:02,752 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:02,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 608 transitions, 21511 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:02,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:02,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:02,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:03,661 INFO L129 PetriNetUnfolder]: 1470/3005 cut-off events. [2021-03-12 00:08:03,661 INFO L130 PetriNetUnfolder]: For 141554/141569 co-relation queries the response was YES. [2021-03-12 00:08:03,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30464 conditions, 3005 events. 1470/3005 cut-off events. For 141554/141569 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 22950 event pairs, 248 based on Foata normal form. 3/3008 useless extension candidates. Maximal degree in co-relation 30319. Up to 1294 conditions per place. [2021-03-12 00:08:03,707 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 350 selfloop transitions, 266 changer transitions 5/627 dead transitions. [2021-03-12 00:08:03,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 627 transitions, 22994 flow [2021-03-12 00:08:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:08:03,708 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:08:03,708 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:08:03,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:08:03,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:03,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:08:03,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:03,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:03,709 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:03,709 INFO L185 Difference]: Start difference. First operand has 424 places, 608 transitions, 21511 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:08:03,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 627 transitions, 22994 flow [2021-03-12 00:08:04,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 627 transitions, 22262 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-12 00:08:04,229 INFO L241 Difference]: Finished difference. Result has 425 places, 608 transitions, 21346 flow [2021-03-12 00:08:04,229 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20798, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21346, PETRI_PLACES=425, PETRI_TRANSITIONS=608} [2021-03-12 00:08:04,229 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 402 predicate places. [2021-03-12 00:08:04,230 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 608 transitions, 21346 flow [2021-03-12 00:08:04,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:04,230 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:04,230 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:04,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable335 [2021-03-12 00:08:04,431 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1700454474, now seen corresponding path program 55 times [2021-03-12 00:08:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:04,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807663687] [2021-03-12 00:08:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:04,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,468 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:04,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:04,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:04,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:04,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807663687] [2021-03-12 00:08:04,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167750282] [2021-03-12 00:08:04,499 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:08:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:04,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:04,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:04,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:04,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:04,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,560 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:04,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:04,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:04,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,563 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:04,564 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:04,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:04,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,584 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:04,584 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:04,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:04,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,608 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:04,608 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:04,610 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:04,611 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:04,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:04,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:04,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:04,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:04,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:04,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812849528] [2021-03-12 00:08:04,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:04,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:04,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:04,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:04,627 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:04,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 608 transitions, 21346 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:04,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:04,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:04,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:05,731 INFO L129 PetriNetUnfolder]: 1466/2978 cut-off events. [2021-03-12 00:08:05,731 INFO L130 PetriNetUnfolder]: For 137600/137615 co-relation queries the response was YES. [2021-03-12 00:08:05,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30157 conditions, 2978 events. 1466/2978 cut-off events. For 137600/137615 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 22635 event pairs, 244 based on Foata normal form. 2/2980 useless extension candidates. Maximal degree in co-relation 30013. Up to 1294 conditions per place. [2021-03-12 00:08:05,776 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 359 selfloop transitions, 258 changer transitions 5/628 dead transitions. [2021-03-12 00:08:05,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 628 transitions, 22779 flow [2021-03-12 00:08:05,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2021-03-12 00:08:05,777 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2021-03-12 00:08:05,777 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 172 transitions. [2021-03-12 00:08:05,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 172 transitions. [2021-03-12 00:08:05,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:05,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 172 transitions. [2021-03-12 00:08:05,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:05,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:05,777 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:05,778 INFO L185 Difference]: Start difference. First operand has 425 places, 608 transitions, 21346 flow. Second operand 8 states and 172 transitions. [2021-03-12 00:08:05,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 628 transitions, 22779 flow [2021-03-12 00:08:06,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 628 transitions, 22256 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:06,241 INFO L241 Difference]: Finished difference. Result has 428 places, 606 transitions, 21283 flow [2021-03-12 00:08:06,241 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20831, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21283, PETRI_PLACES=428, PETRI_TRANSITIONS=606} [2021-03-12 00:08:06,241 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 405 predicate places. [2021-03-12 00:08:06,241 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 606 transitions, 21283 flow [2021-03-12 00:08:06,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:06,242 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:06,242 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:06,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:06,442 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:06,442 INFO L82 PathProgramCache]: Analyzing trace with hash 572227778, now seen corresponding path program 56 times [2021-03-12 00:08:06,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:06,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848401279] [2021-03-12 00:08:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:06,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:06,457 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:06,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:06,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848401279] [2021-03-12 00:08:06,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579010370] [2021-03-12 00:08:06,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:06,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:06,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:06,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:06,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:06,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:06,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:06,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:06,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:06,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:06,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:06,518 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:08:06,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:08:06,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:06,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,521 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:06,521 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,521 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:08:06,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:06,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:06,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,536 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:06,537 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:06,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:06,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:06,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:06,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:06,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:06,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,558 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:06,559 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:06,560 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:06,561 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:06,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:06,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:06,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:06,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:08:06,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055410679] [2021-03-12 00:08:06,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:08:06,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:06,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:08:06,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:08:06,575 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:06,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 606 transitions, 21283 flow. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:06,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:06,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:06,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:07,534 INFO L129 PetriNetUnfolder]: 1464/2966 cut-off events. [2021-03-12 00:08:07,534 INFO L130 PetriNetUnfolder]: For 137386/137422 co-relation queries the response was YES. [2021-03-12 00:08:07,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30083 conditions, 2966 events. 1464/2966 cut-off events. For 137386/137422 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 22436 event pairs, 240 based on Foata normal form. 11/2977 useless extension candidates. Maximal degree in co-relation 29938. Up to 1294 conditions per place. [2021-03-12 00:08:07,578 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 345 selfloop transitions, 267 changer transitions 5/623 dead transitions. [2021-03-12 00:08:07,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 623 transitions, 22689 flow [2021-03-12 00:08:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2021-03-12 00:08:07,579 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-12 00:08:07,579 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 168 transitions. [2021-03-12 00:08:07,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 168 transitions. [2021-03-12 00:08:07,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:07,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 168 transitions. [2021-03-12 00:08:07,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:07,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:07,579 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:07,579 INFO L185 Difference]: Start difference. First operand has 428 places, 606 transitions, 21283 flow. Second operand 8 states and 168 transitions. [2021-03-12 00:08:07,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 623 transitions, 22689 flow [2021-03-12 00:08:08,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 623 transitions, 22189 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:08,047 INFO L241 Difference]: Finished difference. Result has 429 places, 603 transitions, 21175 flow [2021-03-12 00:08:08,048 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20789, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21175, PETRI_PLACES=429, PETRI_TRANSITIONS=603} [2021-03-12 00:08:08,048 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 406 predicate places. [2021-03-12 00:08:08,048 INFO L480 AbstractCegarLoop]: Abstraction has has 429 places, 603 transitions, 21175 flow [2021-03-12 00:08:08,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:08,048 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:08,048 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:08,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable343 [2021-03-12 00:08:08,270 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:08,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:08,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1901522054, now seen corresponding path program 57 times [2021-03-12 00:08:08,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:08,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073810753] [2021-03-12 00:08:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:08,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:08,284 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:08,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,292 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:08,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:08,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073810753] [2021-03-12 00:08:08,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897316251] [2021-03-12 00:08:08,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:08,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:08:08,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:08,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:08,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:08,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:08,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:08,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:08,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:08,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:08,351 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:08:08,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:08:08,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:08,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,354 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:08,354 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:08,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:08,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:08,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:08,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:08,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:08,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:08,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,385 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:08,385 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:08,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:08,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:08,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:08,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:08,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:08,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,405 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:08,406 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:08,408 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:08,408 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:08,408 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:08,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:08,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:08,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:08,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:08,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465971786] [2021-03-12 00:08:08,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:08,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:08,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:08,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:08,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:08,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 603 transitions, 21175 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:08,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:08,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:08,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:09,361 INFO L129 PetriNetUnfolder]: 1463/2953 cut-off events. [2021-03-12 00:08:09,361 INFO L130 PetriNetUnfolder]: For 136541/136556 co-relation queries the response was YES. [2021-03-12 00:08:09,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30002 conditions, 2953 events. 1463/2953 cut-off events. For 136541/136556 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 22226 event pairs, 242 based on Foata normal form. 1/2954 useless extension candidates. Maximal degree in co-relation 29858. Up to 1294 conditions per place. [2021-03-12 00:08:09,407 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 343 selfloop transitions, 267 changer transitions 4/620 dead transitions. [2021-03-12 00:08:09,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 620 transitions, 22575 flow [2021-03-12 00:08:09,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:08:09,408 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:08:09,408 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:08:09,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:08:09,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:09,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:08:09,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:09,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:09,408 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:09,408 INFO L185 Difference]: Start difference. First operand has 429 places, 603 transitions, 21175 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:08:09,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 620 transitions, 22575 flow [2021-03-12 00:08:09,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 620 transitions, 22029 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-12 00:08:09,875 INFO L241 Difference]: Finished difference. Result has 427 places, 601 transitions, 21096 flow [2021-03-12 00:08:09,875 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20635, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21096, PETRI_PLACES=427, PETRI_TRANSITIONS=601} [2021-03-12 00:08:09,875 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 404 predicate places. [2021-03-12 00:08:09,875 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 601 transitions, 21096 flow [2021-03-12 00:08:09,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:09,875 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:09,875 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:10,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable348 [2021-03-12 00:08:10,076 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:10,076 INFO L82 PathProgramCache]: Analyzing trace with hash 816847544, now seen corresponding path program 58 times [2021-03-12 00:08:10,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:10,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890109462] [2021-03-12 00:08:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,095 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:10,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:10,104 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:10,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:10,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:10,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890109462] [2021-03-12 00:08:10,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065901776] [2021-03-12 00:08:10,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:10,148 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:08:10,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:10,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:10,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:10,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:10,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:10,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:10,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,170 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:10,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:10,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:10,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,173 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:10,173 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:10,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:10,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,188 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:10,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:10,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:10,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:10,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,191 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:10,191 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,192 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:10,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:10,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:10,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:10,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:10,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:10,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:10,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:10,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:10,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:10,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:08:10,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983574153] [2021-03-12 00:08:10,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:10,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:10,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:10,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:10,222 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:10,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 601 transitions, 21096 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:10,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:10,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:10,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:11,184 INFO L129 PetriNetUnfolder]: 1462/2950 cut-off events. [2021-03-12 00:08:11,184 INFO L130 PetriNetUnfolder]: For 136793/136808 co-relation queries the response was YES. [2021-03-12 00:08:11,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29943 conditions, 2950 events. 1462/2950 cut-off events. For 136793/136808 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 22188 event pairs, 248 based on Foata normal form. 1/2951 useless extension candidates. Maximal degree in co-relation 29801. Up to 1294 conditions per place. [2021-03-12 00:08:11,231 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 351 selfloop transitions, 260 changer transitions 2/619 dead transitions. [2021-03-12 00:08:11,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 619 transitions, 22504 flow [2021-03-12 00:08:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:08:11,232 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:08:11,232 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:08:11,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:08:11,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:11,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:08:11,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:11,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:11,233 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:11,233 INFO L185 Difference]: Start difference. First operand has 427 places, 601 transitions, 21096 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:08:11,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 619 transitions, 22504 flow [2021-03-12 00:08:11,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 619 transitions, 22089 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:11,712 INFO L241 Difference]: Finished difference. Result has 428 places, 602 transitions, 21228 flow [2021-03-12 00:08:11,713 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20689, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21228, PETRI_PLACES=428, PETRI_TRANSITIONS=602} [2021-03-12 00:08:11,713 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 405 predicate places. [2021-03-12 00:08:11,713 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 602 transitions, 21228 flow [2021-03-12 00:08:11,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:11,713 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:11,713 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:11,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable353 [2021-03-12 00:08:11,927 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:11,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:11,927 INFO L82 PathProgramCache]: Analyzing trace with hash 826713794, now seen corresponding path program 59 times [2021-03-12 00:08:11,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:11,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320848633] [2021-03-12 00:08:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:11,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:11,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:11,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:11,948 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:11,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:11,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:11,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:11,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:11,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320848633] [2021-03-12 00:08:11,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665413268] [2021-03-12 00:08:11,981 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:12,013 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:12,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:12,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:12,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:12,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:12,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:12,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:12,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:12,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:12,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:12,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,035 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:12,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:12,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:12,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,038 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:12,039 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:12,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:12,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:12,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:12,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:12,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,060 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:12,060 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:12,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,079 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:12,079 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,079 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:12,081 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:12,081 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:12,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:12,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:12,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:12,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583021503] [2021-03-12 00:08:12,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:12,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:12,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:12,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:12,095 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:12,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 602 transitions, 21228 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:12,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:12,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:12,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:13,082 INFO L129 PetriNetUnfolder]: 1461/2944 cut-off events. [2021-03-12 00:08:13,082 INFO L130 PetriNetUnfolder]: For 139777/139813 co-relation queries the response was YES. [2021-03-12 00:08:13,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29939 conditions, 2944 events. 1461/2944 cut-off events. For 139777/139813 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 22164 event pairs, 233 based on Foata normal form. 11/2955 useless extension candidates. Maximal degree in co-relation 29796. Up to 1294 conditions per place. [2021-03-12 00:08:13,123 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 351 selfloop transitions, 256 changer transitions 4/617 dead transitions. [2021-03-12 00:08:13,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 617 transitions, 22604 flow [2021-03-12 00:08:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:08:13,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:08:13,125 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:08:13,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:08:13,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:13,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:08:13,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:13,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:13,125 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:13,125 INFO L185 Difference]: Start difference. First operand has 428 places, 602 transitions, 21228 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:08:13,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 617 transitions, 22604 flow [2021-03-12 00:08:13,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 617 transitions, 21767 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-03-12 00:08:13,559 INFO L241 Difference]: Finished difference. Result has 421 places, 600 transitions, 20835 flow [2021-03-12 00:08:13,560 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20395, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20835, PETRI_PLACES=421, PETRI_TRANSITIONS=600} [2021-03-12 00:08:13,560 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 398 predicate places. [2021-03-12 00:08:13,560 INFO L480 AbstractCegarLoop]: Abstraction has has 421 places, 600 transitions, 20835 flow [2021-03-12 00:08:13,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:13,560 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:13,560 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:13,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable356 [2021-03-12 00:08:13,760 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:13,761 INFO L82 PathProgramCache]: Analyzing trace with hash -743929526, now seen corresponding path program 60 times [2021-03-12 00:08:13,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:13,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445022693] [2021-03-12 00:08:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:13,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:13,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:13,773 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:13,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:13,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445022693] [2021-03-12 00:08:13,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975232438] [2021-03-12 00:08:13,806 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:13,826 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:13,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:13,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-12 00:08:13,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:13,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:13,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:13,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:13,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:13,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,879 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:13,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:13,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:13,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:13,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,883 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:13,883 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,885 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:13,886 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:13,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:13,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:13,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:13,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,919 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:13,919 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:13,921 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:13,921 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:13,922 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:13,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:13,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:13,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:13,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-12 00:08:13,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069188896] [2021-03-12 00:08:13,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:13,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:13,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:13,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:13,936 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:13,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 600 transitions, 20835 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:13,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:13,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:13,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:14,949 INFO L129 PetriNetUnfolder]: 1460/2935 cut-off events. [2021-03-12 00:08:14,949 INFO L130 PetriNetUnfolder]: For 132889/132925 co-relation queries the response was YES. [2021-03-12 00:08:14,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29765 conditions, 2935 events. 1460/2935 cut-off events. For 132889/132925 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 21994 event pairs, 238 based on Foata normal form. 11/2946 useless extension candidates. Maximal degree in co-relation 29624. Up to 1294 conditions per place. [2021-03-12 00:08:14,995 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 337 selfloop transitions, 264 changer transitions 5/612 dead transitions. [2021-03-12 00:08:14,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 612 transitions, 22173 flow [2021-03-12 00:08:14,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2021-03-12 00:08:14,996 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2021-03-12 00:08:14,996 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 164 transitions. [2021-03-12 00:08:14,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 164 transitions. [2021-03-12 00:08:14,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:14,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 164 transitions. [2021-03-12 00:08:14,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.5) internal successors, (164), 8 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:14,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:14,997 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:14,997 INFO L185 Difference]: Start difference. First operand has 421 places, 600 transitions, 20835 flow. Second operand 8 states and 164 transitions. [2021-03-12 00:08:14,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 612 transitions, 22173 flow [2021-03-12 00:08:15,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 612 transitions, 21651 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:15,449 INFO L241 Difference]: Finished difference. Result has 420 places, 597 transitions, 20697 flow [2021-03-12 00:08:15,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20315, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20697, PETRI_PLACES=420, PETRI_TRANSITIONS=597} [2021-03-12 00:08:15,449 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 397 predicate places. [2021-03-12 00:08:15,449 INFO L480 AbstractCegarLoop]: Abstraction has has 420 places, 597 transitions, 20697 flow [2021-03-12 00:08:15,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:15,449 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:15,449 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:15,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361,69 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:15,651 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:15,651 INFO L82 PathProgramCache]: Analyzing trace with hash -726963564, now seen corresponding path program 61 times [2021-03-12 00:08:15,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:15,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078977263] [2021-03-12 00:08:15,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:15,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:15,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:15,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:15,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078977263] [2021-03-12 00:08:15,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135522232] [2021-03-12 00:08:15,692 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:15,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:15,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:15,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:15,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:15,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:15,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:15,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:15,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,745 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.2 percent of original size [2021-03-12 00:08:15,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:15,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-12 00:08:15,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:15,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:15,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,748 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:15,749 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:15,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:15,750 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:15,750 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,751 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:15,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:15,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:15,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:15,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:15,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:15,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:15,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:15,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:15,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:15,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:15,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:15,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:15,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:15,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195132122] [2021-03-12 00:08:15,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:15,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:15,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:15,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:15,794 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:15,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 597 transitions, 20697 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:15,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:15,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:15,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:16,681 INFO L129 PetriNetUnfolder]: 1481/3043 cut-off events. [2021-03-12 00:08:16,681 INFO L130 PetriNetUnfolder]: For 136119/136134 co-relation queries the response was YES. [2021-03-12 00:08:16,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30336 conditions, 3043 events. 1481/3043 cut-off events. For 136119/136134 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 23427 event pairs, 236 based on Foata normal form. 4/3047 useless extension candidates. Maximal degree in co-relation 30195. Up to 1314 conditions per place. [2021-03-12 00:08:16,801 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 419 selfloop transitions, 215 changer transitions 6/646 dead transitions. [2021-03-12 00:08:16,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 646 transitions, 22831 flow [2021-03-12 00:08:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:08:16,802 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:08:16,802 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:08:16,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:08:16,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:16,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:08:16,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:16,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:16,802 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:16,802 INFO L185 Difference]: Start difference. First operand has 420 places, 597 transitions, 20697 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:08:16,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 646 transitions, 22831 flow [2021-03-12 00:08:17,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 646 transitions, 22229 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-12 00:08:17,212 INFO L241 Difference]: Finished difference. Result has 418 places, 606 transitions, 20903 flow [2021-03-12 00:08:17,213 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20111, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20903, PETRI_PLACES=418, PETRI_TRANSITIONS=606} [2021-03-12 00:08:17,213 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 395 predicate places. [2021-03-12 00:08:17,213 INFO L480 AbstractCegarLoop]: Abstraction has has 418 places, 606 transitions, 20903 flow [2021-03-12 00:08:17,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:17,213 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:17,213 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:17,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable366 [2021-03-12 00:08:17,413 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1215606554, now seen corresponding path program 62 times [2021-03-12 00:08:17,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:17,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961585705] [2021-03-12 00:08:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:17,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:17,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:17,434 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:17,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:17,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:17,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:17,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961585705] [2021-03-12 00:08:17,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307385458] [2021-03-12 00:08:17,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:17,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:17,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:17,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:17,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:17,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:17,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:17,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:17,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:17,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:17,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:17,509 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:08:17,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:08:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:17,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,512 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:17,513 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:17,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:17,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:17,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:17,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:17,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,552 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:17,552 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:17,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:17,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:17,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:17,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:17,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:17,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,579 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:17,580 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:17,582 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:17,583 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:17,584 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:17,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:17,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:17,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:17,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133071337] [2021-03-12 00:08:17,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:17,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:17,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:17,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:17,601 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:17,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 606 transitions, 20903 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:17,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:17,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:17,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:18,613 INFO L129 PetriNetUnfolder]: 1499/3129 cut-off events. [2021-03-12 00:08:18,613 INFO L130 PetriNetUnfolder]: For 136510/136525 co-relation queries the response was YES. [2021-03-12 00:08:18,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30682 conditions, 3129 events. 1499/3129 cut-off events. For 136510/136525 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 24593 event pairs, 249 based on Foata normal form. 4/3133 useless extension candidates. Maximal degree in co-relation 30540. Up to 1314 conditions per place. [2021-03-12 00:08:18,658 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 451 selfloop transitions, 187 changer transitions 6/650 dead transitions. [2021-03-12 00:08:18,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 650 transitions, 22907 flow [2021-03-12 00:08:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:08:18,659 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:08:18,659 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:08:18,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:08:18,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:18,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:08:18,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:18,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:18,659 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:18,660 INFO L185 Difference]: Start difference. First operand has 418 places, 606 transitions, 20903 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:08:18,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 650 transitions, 22907 flow [2021-03-12 00:08:19,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 650 transitions, 22213 flow, removed 40 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:19,112 INFO L241 Difference]: Finished difference. Result has 423 places, 611 transitions, 20856 flow [2021-03-12 00:08:19,113 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20217, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=20856, PETRI_PLACES=423, PETRI_TRANSITIONS=611} [2021-03-12 00:08:19,113 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 400 predicate places. [2021-03-12 00:08:19,113 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 611 transitions, 20856 flow [2021-03-12 00:08:19,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:19,113 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:19,113 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:19,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable369 [2021-03-12 00:08:19,313 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:19,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1826845114, now seen corresponding path program 63 times [2021-03-12 00:08:19,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:19,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342337156] [2021-03-12 00:08:19,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:19,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:19,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:19,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:19,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:19,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:19,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:19,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342337156] [2021-03-12 00:08:19,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38247062] [2021-03-12 00:08:19,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:19,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:08:19,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:19,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:19,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:19,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:19,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:19,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:19,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:19,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:19,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:19,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:19,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:19,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:19,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:19,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:19,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:19,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,402 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:19,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:19,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:19,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:19,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:19,407 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:19,408 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:19,408 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,409 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:19,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:19,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:19,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:19,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:19,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:19,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:19,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:08:19,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502012165] [2021-03-12 00:08:19,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:08:19,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:19,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:08:19,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:08:19,430 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:19,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 611 transitions, 20856 flow. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:19,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:19,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:19,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:20,342 INFO L129 PetriNetUnfolder]: 1495/3103 cut-off events. [2021-03-12 00:08:20,342 INFO L130 PetriNetUnfolder]: For 130416/130431 co-relation queries the response was YES. [2021-03-12 00:08:20,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30172 conditions, 3103 events. 1495/3103 cut-off events. For 130416/130431 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 24247 event pairs, 264 based on Foata normal form. 4/3107 useless extension candidates. Maximal degree in co-relation 30027. Up to 1314 conditions per place. [2021-03-12 00:08:20,388 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 401 selfloop transitions, 231 changer transitions 5/643 dead transitions. [2021-03-12 00:08:20,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 643 transitions, 22522 flow [2021-03-12 00:08:20,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-03-12 00:08:20,389 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-12 00:08:20,389 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-03-12 00:08:20,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-03-12 00:08:20,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:20,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-03-12 00:08:20,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:20,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:20,389 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:20,389 INFO L185 Difference]: Start difference. First operand has 423 places, 611 transitions, 20856 flow. Second operand 8 states and 175 transitions. [2021-03-12 00:08:20,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 643 transitions, 22522 flow [2021-03-12 00:08:20,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 643 transitions, 22180 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-03-12 00:08:20,924 INFO L241 Difference]: Finished difference. Result has 427 places, 613 transitions, 21028 flow [2021-03-12 00:08:20,924 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20522, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21028, PETRI_PLACES=427, PETRI_TRANSITIONS=613} [2021-03-12 00:08:20,924 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 404 predicate places. [2021-03-12 00:08:20,924 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 613 transitions, 21028 flow [2021-03-12 00:08:20,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:20,924 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:20,924 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:21,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:21,125 INFO L428 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:21,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:21,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1544513282, now seen corresponding path program 64 times [2021-03-12 00:08:21,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:21,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38069824] [2021-03-12 00:08:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:21,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,143 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:21,151 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:08:21,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:21,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:21,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:21,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38069824] [2021-03-12 00:08:21,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147199067] [2021-03-12 00:08:21,183 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:21,207 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:08:21,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:21,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:21,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:21,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:21,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,226 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:08:21,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:21,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:08:21,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:21,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:21,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,229 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:21,229 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:21,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:21,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:21,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:21,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:21,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:21,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:21,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,246 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:21,247 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,247 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:21,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:21,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:21,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:21,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:21,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:21,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:21,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:21,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:21,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690855905] [2021-03-12 00:08:21,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:21,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:21,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:21,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:21,291 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:21,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 613 transitions, 21028 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:21,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:21,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:21,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:22,300 INFO L129 PetriNetUnfolder]: 1509/3172 cut-off events. [2021-03-12 00:08:22,300 INFO L130 PetriNetUnfolder]: For 133741/133756 co-relation queries the response was YES. [2021-03-12 00:08:22,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30732 conditions, 3172 events. 1509/3172 cut-off events. For 133741/133756 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 25173 event pairs, 253 based on Foata normal form. 2/3174 useless extension candidates. Maximal degree in co-relation 30586. Up to 1314 conditions per place. [2021-03-12 00:08:22,348 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 449 selfloop transitions, 203 changer transitions 3/661 dead transitions. [2021-03-12 00:08:22,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 661 transitions, 23117 flow [2021-03-12 00:08:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:08:22,364 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:08:22,364 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:08:22,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:08:22,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:22,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:08:22,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:22,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:22,364 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:22,364 INFO L185 Difference]: Start difference. First operand has 427 places, 613 transitions, 21028 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:08:22,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 661 transitions, 23117 flow [2021-03-12 00:08:22,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 661 transitions, 22675 flow, removed 39 selfloop flow, removed 4 redundant places. [2021-03-12 00:08:22,836 INFO L241 Difference]: Finished difference. Result has 433 places, 619 transitions, 21251 flow [2021-03-12 00:08:22,836 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20602, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21251, PETRI_PLACES=433, PETRI_TRANSITIONS=619} [2021-03-12 00:08:22,837 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 410 predicate places. [2021-03-12 00:08:22,837 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 619 transitions, 21251 flow [2021-03-12 00:08:22,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:22,837 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:22,837 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:23,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable377 [2021-03-12 00:08:23,037 INFO L428 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:23,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:23,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1447107156, now seen corresponding path program 65 times [2021-03-12 00:08:23,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:23,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171967903] [2021-03-12 00:08:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:23,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,051 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:23,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:23,058 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:23,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:23,068 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:23,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:23,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:23,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171967903] [2021-03-12 00:08:23,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993694228] [2021-03-12 00:08:23,095 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:23,114 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:23,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:23,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:23,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:23,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:23,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:23,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:23,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:23,132 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-03-12 00:08:23,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-12 00:08:23,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:23,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,135 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:23,136 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:23,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:23,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:23,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:23,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:23,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,170 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:23,170 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,171 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:23,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:23,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:23,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:23,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:23,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:23,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481980720] [2021-03-12 00:08:23,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:23,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:23,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:23,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:23,207 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:23,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 619 transitions, 21251 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:23,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:23,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:23,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:24,211 INFO L129 PetriNetUnfolder]: 1507/3157 cut-off events. [2021-03-12 00:08:24,211 INFO L130 PetriNetUnfolder]: For 134914/134929 co-relation queries the response was YES. [2021-03-12 00:08:24,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31007 conditions, 3157 events. 1507/3157 cut-off events. For 134914/134929 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 24902 event pairs, 251 based on Foata normal form. 1/3158 useless extension candidates. Maximal degree in co-relation 30858. Up to 1314 conditions per place. [2021-03-12 00:08:24,261 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 451 selfloop transitions, 192 changer transitions 2/651 dead transitions. [2021-03-12 00:08:24,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 651 transitions, 22932 flow [2021-03-12 00:08:24,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:08:24,262 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:08:24,262 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:08:24,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:08:24,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:24,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:08:24,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:24,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:24,263 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:24,263 INFO L185 Difference]: Start difference. First operand has 433 places, 619 transitions, 21251 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:08:24,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 651 transitions, 22932 flow [2021-03-12 00:08:24,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 651 transitions, 22513 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-03-12 00:08:24,761 INFO L241 Difference]: Finished difference. Result has 437 places, 620 transitions, 21266 flow [2021-03-12 00:08:24,761 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20858, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21266, PETRI_PLACES=437, PETRI_TRANSITIONS=620} [2021-03-12 00:08:24,762 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 414 predicate places. [2021-03-12 00:08:24,762 INFO L480 AbstractCegarLoop]: Abstraction has has 437 places, 620 transitions, 21266 flow [2021-03-12 00:08:24,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:24,762 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:24,762 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:24,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:24,963 INFO L428 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:24,963 INFO L82 PathProgramCache]: Analyzing trace with hash -14286802, now seen corresponding path program 66 times [2021-03-12 00:08:24,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:24,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905318147] [2021-03-12 00:08:24,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:24,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:24,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:24,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:24,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:24,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:24,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:24,978 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:24,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:24,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:24,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:24,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:24,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:25,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905318147] [2021-03-12 00:08:25,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046058623] [2021-03-12 00:08:25,011 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:25,030 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:25,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:25,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-12 00:08:25,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:25,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:25,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:25,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:25,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:25,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:25,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:25,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:25,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:25,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:25,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,071 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:25,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:25,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:25,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:25,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,075 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:25,075 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,077 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:25,077 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,078 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:25,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:25,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:25,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,116 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:25,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,118 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:25,119 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:25,120 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:25,121 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:25,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:25,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:25,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:25,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-12 00:08:25,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129720339] [2021-03-12 00:08:25,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:25,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:25,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:25,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:25,135 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:25,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 620 transitions, 21266 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:25,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:25,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:25,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:26,172 INFO L129 PetriNetUnfolder]: 1506/3151 cut-off events. [2021-03-12 00:08:26,172 INFO L130 PetriNetUnfolder]: For 133885/133900 co-relation queries the response was YES. [2021-03-12 00:08:26,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30728 conditions, 3151 events. 1506/3151 cut-off events. For 133885/133900 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 24869 event pairs, 240 based on Foata normal form. 1/3152 useless extension candidates. Maximal degree in co-relation 30578. Up to 1314 conditions per place. [2021-03-12 00:08:26,219 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 358 selfloop transitions, 275 changer transitions 5/644 dead transitions. [2021-03-12 00:08:26,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 644 transitions, 22833 flow [2021-03-12 00:08:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2021-03-12 00:08:26,220 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-12 00:08:26,220 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 168 transitions. [2021-03-12 00:08:26,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 168 transitions. [2021-03-12 00:08:26,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:26,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 168 transitions. [2021-03-12 00:08:26,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:26,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:26,221 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:26,221 INFO L185 Difference]: Start difference. First operand has 437 places, 620 transitions, 21266 flow. Second operand 8 states and 168 transitions. [2021-03-12 00:08:26,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 644 transitions, 22833 flow [2021-03-12 00:08:26,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 644 transitions, 22429 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-12 00:08:26,693 INFO L241 Difference]: Finished difference. Result has 436 places, 617 transitions, 21291 flow [2021-03-12 00:08:26,693 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20870, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=275, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21291, PETRI_PLACES=436, PETRI_TRANSITIONS=617} [2021-03-12 00:08:26,693 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 413 predicate places. [2021-03-12 00:08:26,693 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 617 transitions, 21291 flow [2021-03-12 00:08:26,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:26,693 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:26,693 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:26,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:26,894 INFO L428 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:26,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1806930662, now seen corresponding path program 67 times [2021-03-12 00:08:26,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:26,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168987816] [2021-03-12 00:08:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:26,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:26,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:26,907 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:26,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:26,915 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:26,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:26,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:26,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:26,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168987816] [2021-03-12 00:08:26,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367510722] [2021-03-12 00:08:26,941 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:26,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:26,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:26,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:26,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:26,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:26,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:26,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:26,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:26,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:26,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:26,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:26,969 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:08:26,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:26,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:26,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:08:26,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:26,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:26,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:26,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,972 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:26,972 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:26,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:26,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:26,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:26,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:26,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:26,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:26,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:26,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:27,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:27,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:27,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,004 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:27,004 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:27,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:27,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:27,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:27,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:27,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:27,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:27,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,025 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:27,025 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:27,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:27,027 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:27,027 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:27,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:27,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:27,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:27,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:27,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649233664] [2021-03-12 00:08:27,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:27,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:27,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:27,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:27,042 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:27,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 617 transitions, 21291 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:27,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:27,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:27,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:28,081 INFO L129 PetriNetUnfolder]: 1505/3137 cut-off events. [2021-03-12 00:08:28,081 INFO L130 PetriNetUnfolder]: For 135993/136008 co-relation queries the response was YES. [2021-03-12 00:08:28,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30757 conditions, 3137 events. 1505/3137 cut-off events. For 135993/136008 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 24619 event pairs, 230 based on Foata normal form. 2/3139 useless extension candidates. Maximal degree in co-relation 30608. Up to 1314 conditions per place. [2021-03-12 00:08:28,129 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 357 selfloop transitions, 276 changer transitions 5/644 dead transitions. [2021-03-12 00:08:28,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 644 transitions, 22904 flow [2021-03-12 00:08:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:08:28,130 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:08:28,130 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:08:28,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:08:28,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:28,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:08:28,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:28,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:28,130 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:28,130 INFO L185 Difference]: Start difference. First operand has 436 places, 617 transitions, 21291 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:08:28,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 644 transitions, 22904 flow [2021-03-12 00:08:28,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 644 transitions, 22744 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-12 00:08:28,589 INFO L241 Difference]: Finished difference. Result has 441 places, 617 transitions, 21681 flow [2021-03-12 00:08:28,589 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21140, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21681, PETRI_PLACES=441, PETRI_TRANSITIONS=617} [2021-03-12 00:08:28,589 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 418 predicate places. [2021-03-12 00:08:28,589 INFO L480 AbstractCegarLoop]: Abstraction has has 441 places, 617 transitions, 21681 flow [2021-03-12 00:08:28,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:28,589 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:28,589 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:28,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable388 [2021-03-12 00:08:28,790 INFO L428 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:28,791 INFO L82 PathProgramCache]: Analyzing trace with hash 754116388, now seen corresponding path program 68 times [2021-03-12 00:08:28,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:28,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306913754] [2021-03-12 00:08:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:28,813 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:28,822 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:28,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306913754] [2021-03-12 00:08:28,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169754291] [2021-03-12 00:08:28,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:28,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:28,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:28,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:28,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:28,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:28,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:28,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:28,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:28,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:28,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:28,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,915 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:28,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:28,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:28,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,918 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:28,918 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:28,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:28,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:28,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:28,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:28,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:28,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,937 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:28,937 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,938 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:28,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:28,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:28,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:28,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:28,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,955 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:28,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:28,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:28,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:28,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:28,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:28,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424230077] [2021-03-12 00:08:28,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:28,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:28,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:28,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:28,969 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:28,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 617 transitions, 21681 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:28,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:28,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:28,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:30,004 INFO L129 PetriNetUnfolder]: 1503/3128 cut-off events. [2021-03-12 00:08:30,004 INFO L130 PetriNetUnfolder]: For 142820/142835 co-relation queries the response was YES. [2021-03-12 00:08:30,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31024 conditions, 3128 events. 1503/3128 cut-off events. For 142820/142835 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 24524 event pairs, 249 based on Foata normal form. 6/3134 useless extension candidates. Maximal degree in co-relation 30873. Up to 1314 conditions per place. [2021-03-12 00:08:30,052 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 433 selfloop transitions, 209 changer transitions 5/653 dead transitions. [2021-03-12 00:08:30,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 653 transitions, 23513 flow [2021-03-12 00:08:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2021-03-12 00:08:30,053 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-03-12 00:08:30,053 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 175 transitions. [2021-03-12 00:08:30,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 175 transitions. [2021-03-12 00:08:30,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:30,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 175 transitions. [2021-03-12 00:08:30,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:30,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:30,053 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:30,053 INFO L185 Difference]: Start difference. First operand has 441 places, 617 transitions, 21681 flow. Second operand 8 states and 175 transitions. [2021-03-12 00:08:30,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 653 transitions, 23513 flow [2021-03-12 00:08:30,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 653 transitions, 22997 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:08:30,532 INFO L241 Difference]: Finished difference. Result has 446 places, 624 transitions, 21854 flow [2021-03-12 00:08:30,533 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21184, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21854, PETRI_PLACES=446, PETRI_TRANSITIONS=624} [2021-03-12 00:08:30,533 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 423 predicate places. [2021-03-12 00:08:30,533 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 624 transitions, 21854 flow [2021-03-12 00:08:30,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:30,533 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:30,533 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:30,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:30,734 INFO L428 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:30,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1908597322, now seen corresponding path program 69 times [2021-03-12 00:08:30,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:30,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541711425] [2021-03-12 00:08:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:30,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:30,758 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:30,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:30,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541711425] [2021-03-12 00:08:30,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27895875] [2021-03-12 00:08:30,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:30,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:08:30,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:30,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:30,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:30,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:30,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:30,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:30,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,839 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:30,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:30,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:30,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,842 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:30,842 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:30,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:30,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:30,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:30,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:30,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,860 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:30,861 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:30,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:30,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:30,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:30,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:30,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:30,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:30,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,881 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:30,882 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:30,883 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:30,884 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:30,884 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:30,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:30,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:30,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223225465] [2021-03-12 00:08:30,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:30,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:30,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:30,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:30,898 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:30,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 624 transitions, 21854 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:30,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:30,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:30,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:31,953 INFO L129 PetriNetUnfolder]: 1497/3096 cut-off events. [2021-03-12 00:08:31,953 INFO L130 PetriNetUnfolder]: For 141161/141176 co-relation queries the response was YES. [2021-03-12 00:08:31,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30839 conditions, 3096 events. 1497/3096 cut-off events. For 141161/141176 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 24105 event pairs, 249 based on Foata normal form. 4/3100 useless extension candidates. Maximal degree in co-relation 30685. Up to 1314 conditions per place. [2021-03-12 00:08:32,001 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 434 selfloop transitions, 205 changer transitions 6/651 dead transitions. [2021-03-12 00:08:32,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 651 transitions, 23422 flow [2021-03-12 00:08:32,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:08:32,002 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:08:32,002 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:08:32,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:08:32,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:32,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:08:32,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:32,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:32,003 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:32,003 INFO L185 Difference]: Start difference. First operand has 446 places, 624 transitions, 21854 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:08:32,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 651 transitions, 23422 flow [2021-03-12 00:08:32,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 651 transitions, 22971 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:32,471 INFO L241 Difference]: Finished difference. Result has 449 places, 621 transitions, 21732 flow [2021-03-12 00:08:32,472 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21413, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21732, PETRI_PLACES=449, PETRI_TRANSITIONS=621} [2021-03-12 00:08:32,472 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 426 predicate places. [2021-03-12 00:08:32,472 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 621 transitions, 21732 flow [2021-03-12 00:08:32,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:32,472 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:32,472 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:32,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396,78 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:32,693 INFO L428 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash 172445422, now seen corresponding path program 70 times [2021-03-12 00:08:32,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:32,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366723908] [2021-03-12 00:08:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:32,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:32,703 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:32,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:32,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:32,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:32,720 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:08:32,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:32,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:32,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:32,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:32,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366723908] [2021-03-12 00:08:32,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913158036] [2021-03-12 00:08:32,755 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:08:32,789 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:08:32,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:32,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:32,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:32,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:32,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:32,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:32,798 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:32,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:32,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:32,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:32,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:32,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,801 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:32,802 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:32,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:32,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:32,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:32,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:32,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:32,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:32,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:32,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:32,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:32,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:32,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,841 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:32,842 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,842 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:32,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:32,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:32,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:32,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:32,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:32,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:32,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:32,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:32,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:32,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:32,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:32,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:32,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:32,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:32,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899260186] [2021-03-12 00:08:32,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:32,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:32,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:32,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:32,899 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:32,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 621 transitions, 21732 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:32,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:32,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:32,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:34,051 INFO L129 PetriNetUnfolder]: 1493/3071 cut-off events. [2021-03-12 00:08:34,051 INFO L130 PetriNetUnfolder]: For 140709/140724 co-relation queries the response was YES. [2021-03-12 00:08:34,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30596 conditions, 3071 events. 1493/3071 cut-off events. For 140709/140724 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 23800 event pairs, 213 based on Foata normal form. 4/3075 useless extension candidates. Maximal degree in co-relation 30442. Up to 1314 conditions per place. [2021-03-12 00:08:34,097 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 427 selfloop transitions, 217 changer transitions 6/656 dead transitions. [2021-03-12 00:08:34,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 656 transitions, 23469 flow [2021-03-12 00:08:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:08:34,098 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:08:34,098 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:08:34,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:08:34,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:34,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:08:34,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:34,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:34,099 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:34,099 INFO L185 Difference]: Start difference. First operand has 449 places, 621 transitions, 21732 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:08:34,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 656 transitions, 23469 flow [2021-03-12 00:08:34,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 656 transitions, 23035 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:34,575 INFO L241 Difference]: Finished difference. Result has 449 places, 619 transitions, 21664 flow [2021-03-12 00:08:34,575 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21302, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21664, PETRI_PLACES=449, PETRI_TRANSITIONS=619} [2021-03-12 00:08:34,575 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 426 predicate places. [2021-03-12 00:08:34,575 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 619 transitions, 21664 flow [2021-03-12 00:08:34,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:34,575 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:34,575 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:34,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:34,776 INFO L428 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:34,776 INFO L82 PathProgramCache]: Analyzing trace with hash -694761196, now seen corresponding path program 71 times [2021-03-12 00:08:34,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:34,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630943603] [2021-03-12 00:08:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:34,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:34,787 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:34,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:34,794 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:34,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:34,802 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:34,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:34,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:34,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:34,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:34,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630943603] [2021-03-12 00:08:34,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688560306] [2021-03-12 00:08:34,838 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:34,857 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:34,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:34,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:34,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:34,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:34,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:34,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:34,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:34,865 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:34,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:34,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:34,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,868 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:34,870 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:34,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:34,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:34,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:34,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:34,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:34,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:34,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:34,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:34,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:34,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,917 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:34,917 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,918 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:34,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:34,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:34,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:34,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:34,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:34,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:34,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:34,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:34,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:34,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:34,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856743025] [2021-03-12 00:08:34,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:34,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:34,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:34,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:34,949 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:34,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 619 transitions, 21664 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:34,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:34,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:34,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:36,014 INFO L129 PetriNetUnfolder]: 1489/3031 cut-off events. [2021-03-12 00:08:36,014 INFO L130 PetriNetUnfolder]: For 140297/140312 co-relation queries the response was YES. [2021-03-12 00:08:36,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30453 conditions, 3031 events. 1489/3031 cut-off events. For 140297/140312 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 23166 event pairs, 211 based on Foata normal form. 2/3033 useless extension candidates. Maximal degree in co-relation 30300. Up to 1314 conditions per place. [2021-03-12 00:08:36,061 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 433 selfloop transitions, 209 changer transitions 4/652 dead transitions. [2021-03-12 00:08:36,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 652 transitions, 23351 flow [2021-03-12 00:08:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:36,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:36,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-12 00:08:36,062 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6107142857142858 [2021-03-12 00:08:36,062 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-12 00:08:36,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-12 00:08:36,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:36,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-12 00:08:36,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:36,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:36,063 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:36,063 INFO L185 Difference]: Start difference. First operand has 449 places, 619 transitions, 21664 flow. Second operand 8 states and 171 transitions. [2021-03-12 00:08:36,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 652 transitions, 23351 flow [2021-03-12 00:08:36,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 652 transitions, 22884 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:36,527 INFO L241 Difference]: Finished difference. Result has 451 places, 619 transitions, 21623 flow [2021-03-12 00:08:36,528 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21203, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21623, PETRI_PLACES=451, PETRI_TRANSITIONS=619} [2021-03-12 00:08:36,528 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 428 predicate places. [2021-03-12 00:08:36,528 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 619 transitions, 21623 flow [2021-03-12 00:08:36,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:36,528 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:36,528 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:36,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:36,743 INFO L428 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:36,743 INFO L82 PathProgramCache]: Analyzing trace with hash -978717186, now seen corresponding path program 72 times [2021-03-12 00:08:36,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:36,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016604564] [2021-03-12 00:08:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:36,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:36,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:36,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:36,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:36,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016604564] [2021-03-12 00:08:36,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457452166] [2021-03-12 00:08:36,784 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:36,803 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:36,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:36,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:36,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:36,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:36,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:36,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:36,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:36,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:36,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:36,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,841 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:36,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:36,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:36,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:36,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,845 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:36,845 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:36,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:36,847 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:36,847 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,847 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:36,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:36,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:36,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:36,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:36,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:36,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:36,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:36,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:36,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:36,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:36,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:36,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386063803] [2021-03-12 00:08:36,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:36,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:36,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:36,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:36,873 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:36,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 619 transitions, 21623 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:36,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:36,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:36,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:37,841 INFO L129 PetriNetUnfolder]: 1487/3020 cut-off events. [2021-03-12 00:08:37,841 INFO L130 PetriNetUnfolder]: For 139531/139546 co-relation queries the response was YES. [2021-03-12 00:08:37,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30371 conditions, 3020 events. 1487/3020 cut-off events. For 139531/139546 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 23012 event pairs, 244 based on Foata normal form. 3/3023 useless extension candidates. Maximal degree in co-relation 30218. Up to 1314 conditions per place. [2021-03-12 00:08:37,882 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 422 selfloop transitions, 219 changer transitions 5/652 dead transitions. [2021-03-12 00:08:37,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 652 transitions, 23350 flow [2021-03-12 00:08:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:37,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2021-03-12 00:08:37,883 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6321428571428571 [2021-03-12 00:08:37,883 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 177 transitions. [2021-03-12 00:08:37,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 177 transitions. [2021-03-12 00:08:37,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:37,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 177 transitions. [2021-03-12 00:08:37,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:37,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:37,884 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:37,884 INFO L185 Difference]: Start difference. First operand has 451 places, 619 transitions, 21623 flow. Second operand 8 states and 177 transitions. [2021-03-12 00:08:37,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 652 transitions, 23350 flow [2021-03-12 00:08:38,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 652 transitions, 22894 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:38,300 INFO L241 Difference]: Finished difference. Result has 454 places, 624 transitions, 21787 flow [2021-03-12 00:08:38,300 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21189, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=213, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21787, PETRI_PLACES=454, PETRI_TRANSITIONS=624} [2021-03-12 00:08:38,300 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 431 predicate places. [2021-03-12 00:08:38,300 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 624 transitions, 21787 flow [2021-03-12 00:08:38,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:38,300 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:38,300 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:38,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:38,501 INFO L428 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:38,501 INFO L82 PathProgramCache]: Analyzing trace with hash -9020136, now seen corresponding path program 73 times [2021-03-12 00:08:38,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:38,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56413422] [2021-03-12 00:08:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:38,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:38,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:38,540 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-12 00:08:38,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:38,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:38,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56413422] [2021-03-12 00:08:38,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82210164] [2021-03-12 00:08:38,566 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:38,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:38,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:38,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:38,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:38,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:38,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:38,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:38,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:38,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:38,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:38,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:38,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:38,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,633 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:38,633 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:38,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,636 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:38,637 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:38,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:38,638 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:38,638 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,639 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:38,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:38,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:38,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:38,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:38,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:38,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:38,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:38,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:38,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:38,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:38,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:38,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303278692] [2021-03-12 00:08:38,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:38,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:38,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:38,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:38,669 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:38,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 624 transitions, 21787 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:38,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:38,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:38,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:39,589 INFO L129 PetriNetUnfolder]: 1485/3012 cut-off events. [2021-03-12 00:08:39,590 INFO L130 PetriNetUnfolder]: For 139106/139121 co-relation queries the response was YES. [2021-03-12 00:08:39,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30305 conditions, 3012 events. 1485/3012 cut-off events. For 139106/139121 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 22905 event pairs, 244 based on Foata normal form. 2/3014 useless extension candidates. Maximal degree in co-relation 30152. Up to 1314 conditions per place. [2021-03-12 00:08:39,635 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 422 selfloop transitions, 219 changer transitions 3/650 dead transitions. [2021-03-12 00:08:39,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 650 transitions, 23376 flow [2021-03-12 00:08:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-12 00:08:39,636 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2021-03-12 00:08:39,636 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-12 00:08:39,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-12 00:08:39,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:39,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-12 00:08:39,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:39,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:39,637 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:39,637 INFO L185 Difference]: Start difference. First operand has 454 places, 624 transitions, 21787 flow. Second operand 8 states and 176 transitions. [2021-03-12 00:08:39,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 650 transitions, 23376 flow [2021-03-12 00:08:40,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 650 transitions, 22990 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:40,086 INFO L241 Difference]: Finished difference. Result has 457 places, 625 transitions, 21914 flow [2021-03-12 00:08:40,086 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21411, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21914, PETRI_PLACES=457, PETRI_TRANSITIONS=625} [2021-03-12 00:08:40,086 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 434 predicate places. [2021-03-12 00:08:40,086 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 625 transitions, 21914 flow [2021-03-12 00:08:40,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:40,086 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:40,086 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:40,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable410 [2021-03-12 00:08:40,287 INFO L428 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:40,287 INFO L82 PathProgramCache]: Analyzing trace with hash 941067310, now seen corresponding path program 74 times [2021-03-12 00:08:40,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:40,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88675724] [2021-03-12 00:08:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:40,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:40,304 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:40,313 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:40,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:40,324 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:40,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:40,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:40,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:40,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88675724] [2021-03-12 00:08:40,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891043617] [2021-03-12 00:08:40,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:40,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:40,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:40,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:40,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:40,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:40,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:40,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:40,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:40,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:40,381 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:40,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,384 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:40,384 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:40,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:40,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:40,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:40,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:40,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:08:40,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:40,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:40,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,439 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:40,440 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:40,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:40,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:40,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:40,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:40,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:40,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:40,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,462 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:40,463 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:40,464 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:40,465 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:40,465 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:40,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:40,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:40,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:40,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:40,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511315758] [2021-03-12 00:08:40,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:40,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:40,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:40,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:40,479 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:40,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 625 transitions, 21914 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:40,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:40,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:40,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:41,488 INFO L129 PetriNetUnfolder]: 1483/3005 cut-off events. [2021-03-12 00:08:41,488 INFO L130 PetriNetUnfolder]: For 138637/138652 co-relation queries the response was YES. [2021-03-12 00:08:41,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30260 conditions, 3005 events. 1483/3005 cut-off events. For 138637/138652 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 22828 event pairs, 217 based on Foata normal form. 1/3006 useless extension candidates. Maximal degree in co-relation 30108. Up to 1314 conditions per place. [2021-03-12 00:08:41,533 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 431 selfloop transitions, 211 changer transitions 4/652 dead transitions. [2021-03-12 00:08:41,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 652 transitions, 23501 flow [2021-03-12 00:08:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2021-03-12 00:08:41,534 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2021-03-12 00:08:41,534 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 167 transitions. [2021-03-12 00:08:41,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 167 transitions. [2021-03-12 00:08:41,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:41,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 167 transitions. [2021-03-12 00:08:41,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:41,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:41,535 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:41,535 INFO L185 Difference]: Start difference. First operand has 457 places, 625 transitions, 21914 flow. Second operand 8 states and 167 transitions. [2021-03-12 00:08:41,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 652 transitions, 23501 flow [2021-03-12 00:08:42,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 652 transitions, 23086 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:42,030 INFO L241 Difference]: Finished difference. Result has 458 places, 623 transitions, 21843 flow [2021-03-12 00:08:42,031 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21503, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21843, PETRI_PLACES=458, PETRI_TRANSITIONS=623} [2021-03-12 00:08:42,031 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 435 predicate places. [2021-03-12 00:08:42,031 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 623 transitions, 21843 flow [2021-03-12 00:08:42,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:42,031 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:42,031 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:42,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable413 [2021-03-12 00:08:42,231 INFO L428 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:42,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:42,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1918463572, now seen corresponding path program 75 times [2021-03-12 00:08:42,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:42,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736400701] [2021-03-12 00:08:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:42,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:42,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:42,249 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:42,257 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:42,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:42,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:42,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736400701] [2021-03-12 00:08:42,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250013267] [2021-03-12 00:08:42,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:42,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:08:42,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:42,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:42,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:42,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:42,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:42,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:42,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,325 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:42,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:42,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:42,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,328 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:42,328 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:42,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:42,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:42,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:42,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:42,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:42,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,347 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:42,347 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,347 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:42,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:42,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:42,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:42,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:42,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:42,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:42,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:42,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:42,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:42,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:42,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:08:42,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063284529] [2021-03-12 00:08:42,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:42,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:42,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:42,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:42,376 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:42,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 623 transitions, 21843 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:42,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:42,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:42,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:43,334 INFO L129 PetriNetUnfolder]: 1482/3000 cut-off events. [2021-03-12 00:08:43,334 INFO L130 PetriNetUnfolder]: For 140158/140173 co-relation queries the response was YES. [2021-03-12 00:08:43,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30239 conditions, 3000 events. 1482/3000 cut-off events. For 140158/140173 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 22810 event pairs, 254 based on Foata normal form. 2/3002 useless extension candidates. Maximal degree in co-relation 30088. Up to 1314 conditions per place. [2021-03-12 00:08:43,378 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 424 selfloop transitions, 215 changer transitions 4/649 dead transitions. [2021-03-12 00:08:43,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 649 transitions, 23405 flow [2021-03-12 00:08:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:08:43,380 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:08:43,380 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:08:43,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:08:43,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:43,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:08:43,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:43,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:43,380 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:43,380 INFO L185 Difference]: Start difference. First operand has 458 places, 623 transitions, 21843 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:08:43,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 649 transitions, 23405 flow [2021-03-12 00:08:43,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 649 transitions, 22965 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:43,831 INFO L241 Difference]: Finished difference. Result has 458 places, 625 transitions, 21890 flow [2021-03-12 00:08:43,831 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21415, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21890, PETRI_PLACES=458, PETRI_TRANSITIONS=625} [2021-03-12 00:08:43,831 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 435 predicate places. [2021-03-12 00:08:43,831 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 625 transitions, 21890 flow [2021-03-12 00:08:43,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:43,831 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:43,832 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:44,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:44,046 INFO L428 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:44,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:44,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1322566778, now seen corresponding path program 76 times [2021-03-12 00:08:44,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:44,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001936022] [2021-03-12 00:08:44,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:44,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:44,060 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:44,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:44,066 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:44,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:44,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001936022] [2021-03-12 00:08:44,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336257480] [2021-03-12 00:08:44,100 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:44,119 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:08:44,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:44,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:44,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:44,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:44,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:44,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:44,127 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:44,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:44,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:44,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,129 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:44,130 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:44,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:08:44,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:44,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:44,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,158 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:44,159 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:44,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:44,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:44,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:44,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,182 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:44,182 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:44,184 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:44,184 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:44,184 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:44,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:44,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:44,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:08:44,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523235103] [2021-03-12 00:08:44,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:08:44,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:44,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:08:44,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:08:44,199 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:44,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 625 transitions, 21890 flow. Second operand has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:44,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:44,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:44,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:45,207 INFO L129 PetriNetUnfolder]: 1480/2980 cut-off events. [2021-03-12 00:08:45,207 INFO L130 PetriNetUnfolder]: For 139729/139744 co-relation queries the response was YES. [2021-03-12 00:08:45,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30138 conditions, 2980 events. 1480/2980 cut-off events. For 139729/139744 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 22539 event pairs, 208 based on Foata normal form. 1/2981 useless extension candidates. Maximal degree in co-relation 29986. Up to 1314 conditions per place. [2021-03-12 00:08:45,252 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 389 selfloop transitions, 246 changer transitions 5/646 dead transitions. [2021-03-12 00:08:45,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 646 transitions, 23380 flow [2021-03-12 00:08:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-03-12 00:08:45,253 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2021-03-12 00:08:45,253 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-03-12 00:08:45,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-03-12 00:08:45,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:45,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-03-12 00:08:45,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:45,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:45,253 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:45,253 INFO L185 Difference]: Start difference. First operand has 458 places, 625 transitions, 21890 flow. Second operand 8 states and 166 transitions. [2021-03-12 00:08:45,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 646 transitions, 23380 flow [2021-03-12 00:08:45,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 646 transitions, 22994 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:45,704 INFO L241 Difference]: Finished difference. Result has 460 places, 622 transitions, 21865 flow [2021-03-12 00:08:45,705 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21508, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21865, PETRI_PLACES=460, PETRI_TRANSITIONS=622} [2021-03-12 00:08:45,705 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:08:45,705 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 622 transitions, 21865 flow [2021-03-12 00:08:45,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.181818181818183) internal successors, (189), 11 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:45,705 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:45,705 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:45,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable421 [2021-03-12 00:08:45,905 INFO L428 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:45,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:45,906 INFO L82 PathProgramCache]: Analyzing trace with hash -2007343580, now seen corresponding path program 77 times [2021-03-12 00:08:45,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:45,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705638875] [2021-03-12 00:08:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:45,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:45,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:45,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:45,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:45,916 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:45,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:45,924 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:45,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:45,934 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:45,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:45,946 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:45,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:45,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:45,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:45,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705638875] [2021-03-12 00:08:45,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798658304] [2021-03-12 00:08:45,982 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:46,022 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:46,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:46,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:46,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:46,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:46,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:46,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:46,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:46,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:46,031 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:46,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:46,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:46,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:46,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:46,035 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:46,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:46,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:46,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:46,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:46,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:46,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:46,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:46,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:46,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:46,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,096 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:46,097 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,097 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:46,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:46,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:46,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:46,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:46,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:46,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:46,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:46,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:46,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:46,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-03-12 00:08:46,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950170446] [2021-03-12 00:08:46,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:46,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:46,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:46,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:46,136 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:46,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 622 transitions, 21865 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:46,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:46,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:46,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:47,216 INFO L129 PetriNetUnfolder]: 1479/2975 cut-off events. [2021-03-12 00:08:47,216 INFO L130 PetriNetUnfolder]: For 141430/141445 co-relation queries the response was YES. [2021-03-12 00:08:47,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30158 conditions, 2975 events. 1479/2975 cut-off events. For 141430/141445 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 22430 event pairs, 206 based on Foata normal form. 2/2977 useless extension candidates. Maximal degree in co-relation 30007. Up to 1314 conditions per place. [2021-03-12 00:08:47,262 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 386 selfloop transitions, 247 changer transitions 4/643 dead transitions. [2021-03-12 00:08:47,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 643 transitions, 23349 flow [2021-03-12 00:08:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2021-03-12 00:08:47,263 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-12 00:08:47,263 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 168 transitions. [2021-03-12 00:08:47,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 168 transitions. [2021-03-12 00:08:47,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:47,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 168 transitions. [2021-03-12 00:08:47,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:47,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:47,263 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:47,263 INFO L185 Difference]: Start difference. First operand has 460 places, 622 transitions, 21865 flow. Second operand 8 states and 168 transitions. [2021-03-12 00:08:47,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 643 transitions, 23349 flow [2021-03-12 00:08:47,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 643 transitions, 22847 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:47,715 INFO L241 Difference]: Finished difference. Result has 459 places, 621 transitions, 21835 flow [2021-03-12 00:08:47,715 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21367, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21835, PETRI_PLACES=459, PETRI_TRANSITIONS=621} [2021-03-12 00:08:47,716 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 436 predicate places. [2021-03-12 00:08:47,716 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 621 transitions, 21835 flow [2021-03-12 00:08:47,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:47,716 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:47,716 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:47,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:47,916 INFO L428 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:47,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:47,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1034856642, now seen corresponding path program 78 times [2021-03-12 00:08:47,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:47,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444425811] [2021-03-12 00:08:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:47,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:47,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:47,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:47,935 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:47,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:47,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:47,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:47,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444425811] [2021-03-12 00:08:47,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780519152] [2021-03-12 00:08:47,959 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:47,979 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:47,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:47,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:47,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:47,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:47,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:47,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:47,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:47,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:47,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:47,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:48,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:48,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:48,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:48,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:48,036 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:48,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:48,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:08:48,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:48,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,040 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:48,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:48,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:48,042 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:48,042 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:48,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:48,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:48,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:48,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:48,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:48,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:48,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,063 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:48,063 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:48,065 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:48,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:48,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:48,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:48,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:48,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:48,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-12 00:08:48,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758336064] [2021-03-12 00:08:48,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:08:48,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:48,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:08:48,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:08:48,079 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:48,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 621 transitions, 21835 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:48,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:48,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:48,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:49,075 INFO L129 PetriNetUnfolder]: 1477/2968 cut-off events. [2021-03-12 00:08:49,076 INFO L130 PetriNetUnfolder]: For 141509/141524 co-relation queries the response was YES. [2021-03-12 00:08:49,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30097 conditions, 2968 events. 1477/2968 cut-off events. For 141509/141524 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 22355 event pairs, 251 based on Foata normal form. 1/2969 useless extension candidates. Maximal degree in co-relation 29947. Up to 1314 conditions per place. [2021-03-12 00:08:49,121 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 421 selfloop transitions, 210 changer transitions 4/641 dead transitions. [2021-03-12 00:08:49,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 641 transitions, 23287 flow [2021-03-12 00:08:49,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:08:49,122 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:08:49,122 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:08:49,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:08:49,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:49,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:08:49,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:49,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:49,123 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:49,123 INFO L185 Difference]: Start difference. First operand has 459 places, 621 transitions, 21835 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:08:49,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 641 transitions, 23287 flow [2021-03-12 00:08:49,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 641 transitions, 22783 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:49,576 INFO L241 Difference]: Finished difference. Result has 460 places, 619 transitions, 21674 flow [2021-03-12 00:08:49,577 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21337, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21674, PETRI_PLACES=460, PETRI_TRANSITIONS=619} [2021-03-12 00:08:49,577 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:08:49,577 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 619 transitions, 21674 flow [2021-03-12 00:08:49,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:49,577 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:49,577 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:49,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable429 [2021-03-12 00:08:49,777 INFO L428 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:49,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:49,778 INFO L82 PathProgramCache]: Analyzing trace with hash 134884196, now seen corresponding path program 79 times [2021-03-12 00:08:49,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:49,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879123544] [2021-03-12 00:08:49,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:49,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:49,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:49,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:49,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879123544] [2021-03-12 00:08:49,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538655579] [2021-03-12 00:08:49,821 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:49,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:49,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:49,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:49,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:49,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:49,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:49,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:49,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:49,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:49,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:49,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:49,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:08:49,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,889 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:49,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:49,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:49,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,893 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:49,893 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:49,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:49,894 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:49,895 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,895 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:49,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:49,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:49,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:49,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:49,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:49,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:49,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:49,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:49,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:49,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391706107] [2021-03-12 00:08:49,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:49,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:49,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:49,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:49,924 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:49,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 619 transitions, 21674 flow. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:49,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:49,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:49,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:50,815 INFO L129 PetriNetUnfolder]: 1476/2958 cut-off events. [2021-03-12 00:08:50,815 INFO L130 PetriNetUnfolder]: For 140277/140292 co-relation queries the response was YES. [2021-03-12 00:08:50,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29916 conditions, 2958 events. 1476/2958 cut-off events. For 140277/140292 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 22165 event pairs, 249 based on Foata normal form. 1/2959 useless extension candidates. Maximal degree in co-relation 29766. Up to 1314 conditions per place. [2021-03-12 00:08:50,860 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 403 selfloop transitions, 231 changer transitions 2/642 dead transitions. [2021-03-12 00:08:50,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 642 transitions, 23177 flow [2021-03-12 00:08:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2021-03-12 00:08:50,861 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2021-03-12 00:08:50,861 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 173 transitions. [2021-03-12 00:08:50,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 173 transitions. [2021-03-12 00:08:50,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:50,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 173 transitions. [2021-03-12 00:08:50,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:50,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:50,862 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:50,862 INFO L185 Difference]: Start difference. First operand has 460 places, 619 transitions, 21674 flow. Second operand 8 states and 173 transitions. [2021-03-12 00:08:50,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 642 transitions, 23177 flow [2021-03-12 00:08:51,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 642 transitions, 22751 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:51,312 INFO L241 Difference]: Finished difference. Result has 460 places, 619 transitions, 21736 flow [2021-03-12 00:08:51,313 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21252, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21736, PETRI_PLACES=460, PETRI_TRANSITIONS=619} [2021-03-12 00:08:51,313 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:08:51,313 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 619 transitions, 21736 flow [2021-03-12 00:08:51,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 12 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:51,313 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:51,313 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:51,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable434 [2021-03-12 00:08:51,513 INFO L428 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:51,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:51,514 INFO L82 PathProgramCache]: Analyzing trace with hash -375089994, now seen corresponding path program 80 times [2021-03-12 00:08:51,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:51,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253202143] [2021-03-12 00:08:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:51,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:51,523 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-12 00:08:51,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:51,530 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:51,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,539 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:51,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253202143] [2021-03-12 00:08:51,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259115539] [2021-03-12 00:08:51,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:51,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:51,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:51,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:51,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:51,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:51,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:51,595 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size [2021-03-12 00:08:51,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:51,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,598 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:51,598 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:51,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:08:51,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:51,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:51,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,644 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:51,646 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:51,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:51,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:51,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:51,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:51,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:51,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,668 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:51,668 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:51,670 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:51,670 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:51,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:08:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:51,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:51,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:51,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:51,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:08:51,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357443336] [2021-03-12 00:08:51,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:51,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:51,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:51,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:51,685 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:51,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 619 transitions, 21736 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:51,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:51,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:51,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:52,717 INFO L129 PetriNetUnfolder]: 1475/2946 cut-off events. [2021-03-12 00:08:52,717 INFO L130 PetriNetUnfolder]: For 139500/139515 co-relation queries the response was YES. [2021-03-12 00:08:52,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29926 conditions, 2946 events. 1475/2946 cut-off events. For 139500/139515 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 22016 event pairs, 205 based on Foata normal form. 1/2947 useless extension candidates. Maximal degree in co-relation 29775. Up to 1314 conditions per place. [2021-03-12 00:08:52,764 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 383 selfloop transitions, 245 changer transitions 4/638 dead transitions. [2021-03-12 00:08:52,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 638 transitions, 23190 flow [2021-03-12 00:08:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2021-03-12 00:08:52,765 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2021-03-12 00:08:52,765 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 165 transitions. [2021-03-12 00:08:52,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 165 transitions. [2021-03-12 00:08:52,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:52,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 165 transitions. [2021-03-12 00:08:52,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:52,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:52,765 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:52,766 INFO L185 Difference]: Start difference. First operand has 460 places, 619 transitions, 21736 flow. Second operand 8 states and 165 transitions. [2021-03-12 00:08:52,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 638 transitions, 23190 flow [2021-03-12 00:08:53,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 638 transitions, 22789 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-12 00:08:53,256 INFO L241 Difference]: Finished difference. Result has 460 places, 617 transitions, 21756 flow [2021-03-12 00:08:53,256 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21337, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21756, PETRI_PLACES=460, PETRI_TRANSITIONS=617} [2021-03-12 00:08:53,256 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:08:53,256 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 617 transitions, 21756 flow [2021-03-12 00:08:53,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:53,256 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:53,256 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:53,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:53,459 INFO L428 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:53,459 INFO L82 PathProgramCache]: Analyzing trace with hash 923323732, now seen corresponding path program 81 times [2021-03-12 00:08:53,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:53,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96548462] [2021-03-12 00:08:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:53,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:53,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:53,472 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:53,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,480 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:53,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,489 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:53,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:53,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:53,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96548462] [2021-03-12 00:08:53,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106700345] [2021-03-12 00:08:53,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:53,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:08:53,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:53,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:53,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:53,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:53,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:53,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:53,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:53,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:53,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:53,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:53,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:53,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:08:53,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:53,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:53,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:53,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:53,615 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:53,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:53,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:53,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:53,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:53,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,618 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:53,619 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,621 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:53,621 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:53,623 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:53,623 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:53,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:08:53,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:53,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:53,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:53,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-12 00:08:53,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361582439] [2021-03-12 00:08:53,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-12 00:08:53,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:53,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-12 00:08:53,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-12 00:08:53,636 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:53,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 617 transitions, 21756 flow. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:53,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:53,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:53,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:54,692 INFO L129 PetriNetUnfolder]: 1474/2935 cut-off events. [2021-03-12 00:08:54,692 INFO L130 PetriNetUnfolder]: For 141574/141589 co-relation queries the response was YES. [2021-03-12 00:08:54,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29980 conditions, 2935 events. 1474/2935 cut-off events. For 141574/141589 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 21836 event pairs, 220 based on Foata normal form. 1/2936 useless extension candidates. Maximal degree in co-relation 29830. Up to 1314 conditions per place. [2021-03-12 00:08:54,733 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 350 selfloop transitions, 277 changer transitions 2/635 dead transitions. [2021-03-12 00:08:54,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 635 transitions, 23195 flow [2021-03-12 00:08:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 169 transitions. [2021-03-12 00:08:54,734 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2021-03-12 00:08:54,734 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 169 transitions. [2021-03-12 00:08:54,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 169 transitions. [2021-03-12 00:08:54,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:54,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 169 transitions. [2021-03-12 00:08:54,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:54,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:54,735 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:54,735 INFO L185 Difference]: Start difference. First operand has 460 places, 617 transitions, 21756 flow. Second operand 8 states and 169 transitions. [2021-03-12 00:08:54,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 635 transitions, 23195 flow [2021-03-12 00:08:55,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 635 transitions, 22582 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-12 00:08:55,165 INFO L241 Difference]: Finished difference. Result has 455 places, 616 transitions, 21674 flow [2021-03-12 00:08:55,165 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21149, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21674, PETRI_PLACES=455, PETRI_TRANSITIONS=616} [2021-03-12 00:08:55,165 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 432 predicate places. [2021-03-12 00:08:55,166 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 616 transitions, 21674 flow [2021-03-12 00:08:55,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:55,166 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:55,166 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:55,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:55,366 INFO L428 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:55,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:55,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1392054372, now seen corresponding path program 82 times [2021-03-12 00:08:55,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:55,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063902632] [2021-03-12 00:08:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:55,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:55,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,386 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:08:55,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:55,395 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:08:55,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:55,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063902632] [2021-03-12 00:08:55,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421244842] [2021-03-12 00:08:55,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:55,441 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:08:55,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:55,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:55,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:55,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:55,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:55,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:55,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:55,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:55,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,463 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:08:55,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:08:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:08:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,466 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:55,467 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:55,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:55,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:55,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:08:55,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:55,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,485 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:55,486 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,486 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:55,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:55,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:55,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:08:55,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336253088] [2021-03-12 00:08:55,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:55,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:55,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:55,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:55,517 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:55,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 616 transitions, 21674 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:55,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:55,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:55,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:56,489 INFO L129 PetriNetUnfolder]: 1473/2937 cut-off events. [2021-03-12 00:08:56,490 INFO L130 PetriNetUnfolder]: For 140298/140313 co-relation queries the response was YES. [2021-03-12 00:08:56,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29878 conditions, 2937 events. 1473/2937 cut-off events. For 140298/140313 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 21868 event pairs, 225 based on Foata normal form. 4/2941 useless extension candidates. Maximal degree in co-relation 29728. Up to 1314 conditions per place. [2021-03-12 00:08:56,535 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 361 selfloop transitions, 270 changer transitions 4/641 dead transitions. [2021-03-12 00:08:56,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 641 transitions, 23259 flow [2021-03-12 00:08:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:56,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:08:56,536 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:08:56,536 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:08:56,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:08:56,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:56,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:08:56,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:56,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:56,536 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:56,536 INFO L185 Difference]: Start difference. First operand has 455 places, 616 transitions, 21674 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:08:56,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 641 transitions, 23259 flow [2021-03-12 00:08:56,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 641 transitions, 22629 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-03-12 00:08:57,005 INFO L241 Difference]: Finished difference. Result has 454 places, 619 transitions, 21689 flow [2021-03-12 00:08:57,005 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21064, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21689, PETRI_PLACES=454, PETRI_TRANSITIONS=619} [2021-03-12 00:08:57,005 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 431 predicate places. [2021-03-12 00:08:57,005 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 619 transitions, 21689 flow [2021-03-12 00:08:57,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:57,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:57,006 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:57,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable446 [2021-03-12 00:08:57,206 INFO L428 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1406544240, now seen corresponding path program 83 times [2021-03-12 00:08:57,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:57,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219582534] [2021-03-12 00:08:57,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:57,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:57,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:57,235 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-12 00:08:57,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:57,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219582534] [2021-03-12 00:08:57,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242342180] [2021-03-12 00:08:57,261 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:57,280 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:08:57,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:57,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:57,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:57,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:57,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:57,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:57,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:57,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:57,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:57,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:57,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:57,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:57,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:57,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,319 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:57,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:57,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:57,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:57,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,322 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:57,323 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:57,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:57,324 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:57,325 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,325 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:08:57,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:57,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:57,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:57,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:57,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:57,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:08:57,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:57,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:57,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:57,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:57,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:57,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:08:57,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021533230] [2021-03-12 00:08:57,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:08:57,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:57,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:08:57,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:08:57,355 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:57,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 619 transitions, 21689 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:57,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:57,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:57,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:08:58,274 INFO L129 PetriNetUnfolder]: 1469/2913 cut-off events. [2021-03-12 00:08:58,274 INFO L130 PetriNetUnfolder]: For 139550/139565 co-relation queries the response was YES. [2021-03-12 00:08:58,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29712 conditions, 2913 events. 1469/2913 cut-off events. For 139550/139565 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 21565 event pairs, 228 based on Foata normal form. 3/2916 useless extension candidates. Maximal degree in co-relation 29561. Up to 1314 conditions per place. [2021-03-12 00:08:58,319 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 355 selfloop transitions, 274 changer transitions 5/640 dead transitions. [2021-03-12 00:08:58,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 640 transitions, 23213 flow [2021-03-12 00:08:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:08:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:08:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:08:58,320 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:08:58,320 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:08:58,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:08:58,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:08:58,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:08:58,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:58,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:58,321 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:58,321 INFO L185 Difference]: Start difference. First operand has 454 places, 619 transitions, 21689 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:08:58,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 640 transitions, 23213 flow [2021-03-12 00:08:58,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 640 transitions, 22710 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-12 00:08:58,812 INFO L241 Difference]: Finished difference. Result has 457 places, 620 transitions, 21776 flow [2021-03-12 00:08:58,812 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21202, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21776, PETRI_PLACES=457, PETRI_TRANSITIONS=620} [2021-03-12 00:08:58,812 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 434 predicate places. [2021-03-12 00:08:58,812 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 620 transitions, 21776 flow [2021-03-12 00:08:58,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:58,813 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:08:58,813 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:08:59,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable449 [2021-03-12 00:08:59,013 INFO L428 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:08:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:08:59,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2139776400, now seen corresponding path program 84 times [2021-03-12 00:08:59,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:08:59,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613989972] [2021-03-12 00:08:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:08:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:08:59,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:08:59,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:59,061 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-12 00:08:59,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:08:59,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:59,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613989972] [2021-03-12 00:08:59,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128038817] [2021-03-12 00:08:59,094 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:08:59,118 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:08:59,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:08:59,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:08:59,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:08:59,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:08:59,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:59,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:59,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:59,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:08:59,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:08:59,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:59,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:59,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:08:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:59,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:08:59,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:08:59,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:08:59,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:08:59,201 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:08:59,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:08:59,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:08:59,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:08:59,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:08:59,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,204 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:08:59,205 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:59,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:59,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,207 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:59,208 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:59,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:08:59,209 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:08:59,209 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:08:59,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:08:59,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:08:59,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:08:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:08:59,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:08:59,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-12 00:08:59,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167896188] [2021-03-12 00:08:59,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-12 00:08:59,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:08:59,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-12 00:08:59,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-12 00:08:59,223 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:08:59,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 620 transitions, 21776 flow. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:08:59,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:08:59,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:08:59,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:00,154 INFO L129 PetriNetUnfolder]: 1465/2897 cut-off events. [2021-03-12 00:09:00,154 INFO L130 PetriNetUnfolder]: For 141660/141675 co-relation queries the response was YES. [2021-03-12 00:09:00,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29523 conditions, 2897 events. 1465/2897 cut-off events. For 141660/141675 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 21350 event pairs, 240 based on Foata normal form. 2/2899 useless extension candidates. Maximal degree in co-relation 29372. Up to 1314 conditions per place. [2021-03-12 00:09:00,198 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 354 selfloop transitions, 275 changer transitions 4/639 dead transitions. [2021-03-12 00:09:00,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 639 transitions, 23265 flow [2021-03-12 00:09:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:09:00,199 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:09:00,199 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:09:00,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:09:00,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:00,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:09:00,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:00,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:00,200 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:00,200 INFO L185 Difference]: Start difference. First operand has 457 places, 620 transitions, 21776 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:09:00,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 639 transitions, 23265 flow [2021-03-12 00:09:00,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 639 transitions, 22315 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-12 00:09:00,631 INFO L241 Difference]: Finished difference. Result has 457 places, 620 transitions, 21402 flow [2021-03-12 00:09:00,631 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20836, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21402, PETRI_PLACES=457, PETRI_TRANSITIONS=620} [2021-03-12 00:09:00,631 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 434 predicate places. [2021-03-12 00:09:00,631 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 620 transitions, 21402 flow [2021-03-12 00:09:00,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:00,631 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:00,631 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:00,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable452 [2021-03-12 00:09:00,832 INFO L428 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:00,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:00,832 INFO L82 PathProgramCache]: Analyzing trace with hash 240199214, now seen corresponding path program 85 times [2021-03-12 00:09:00,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:00,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935413021] [2021-03-12 00:09:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:00,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:00,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,859 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:00,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:00,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:00,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:00,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935413021] [2021-03-12 00:09:00,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381301059] [2021-03-12 00:09:00,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:00,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:00,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:00,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:00,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:00,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:00,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:00,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:00,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:00,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,926 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size [2021-03-12 00:09:00,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:09:00,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:00,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,929 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:00,929 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:00,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:00,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:09:00,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:00,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:00,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,947 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:00,948 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:00,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:00,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:00,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:00,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:00,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:00,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:09:00,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,969 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:00,969 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:00,972 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:00,972 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:00,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:09:00,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:00,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:00,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:00,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:00,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659435218] [2021-03-12 00:09:00,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:09:00,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:00,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:09:00,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:09:00,991 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:00,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 620 transitions, 21402 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:00,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:00,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:00,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:01,930 INFO L129 PetriNetUnfolder]: 1463/2889 cut-off events. [2021-03-12 00:09:01,930 INFO L130 PetriNetUnfolder]: For 133401/133416 co-relation queries the response was YES. [2021-03-12 00:09:01,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29361 conditions, 2889 events. 1463/2889 cut-off events. For 133401/133416 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 21265 event pairs, 251 based on Foata normal form. 1/2890 useless extension candidates. Maximal degree in co-relation 29209. Up to 1314 conditions per place. [2021-03-12 00:09:01,974 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 360 selfloop transitions, 267 changer transitions 4/637 dead transitions. [2021-03-12 00:09:01,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 637 transitions, 22829 flow [2021-03-12 00:09:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:09:01,975 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:09:01,975 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:09:01,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:09:01,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:01,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:09:01,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:01,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:01,976 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:01,976 INFO L185 Difference]: Start difference. First operand has 457 places, 620 transitions, 21402 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:09:01,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 637 transitions, 22829 flow [2021-03-12 00:09:02,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 637 transitions, 22295 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:02,412 INFO L241 Difference]: Finished difference. Result has 459 places, 618 transitions, 21340 flow [2021-03-12 00:09:02,413 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20874, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21340, PETRI_PLACES=459, PETRI_TRANSITIONS=618} [2021-03-12 00:09:02,413 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 436 predicate places. [2021-03-12 00:09:02,413 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 618 transitions, 21340 flow [2021-03-12 00:09:02,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:02,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:02,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:02,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable456 [2021-03-12 00:09:02,614 INFO L428 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:02,614 INFO L82 PathProgramCache]: Analyzing trace with hash 222981314, now seen corresponding path program 86 times [2021-03-12 00:09:02,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:02,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623470471] [2021-03-12 00:09:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:09:02,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,633 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:02,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,642 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:09:02,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:02,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:02,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623470471] [2021-03-12 00:09:02,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995498526] [2021-03-12 00:09:02,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:02,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:02,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:02,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:02,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:02,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:02,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:02,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:02,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:02,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:02,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:02,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:02,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:02,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:09:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:09:02,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:02,772 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:09:02,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:02,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:09:02,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:09:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-12 00:09:02,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,776 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:02,777 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,779 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:02,779 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:02,780 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:02,781 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:02,781 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-12 00:09:02,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:02,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:02,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-03-12 00:09:02,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015086012] [2021-03-12 00:09:02,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-12 00:09:02,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:02,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-12 00:09:02,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-03-12 00:09:02,789 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:02,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 618 transitions, 21340 flow. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:02,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:02,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:02,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:03,742 INFO L129 PetriNetUnfolder]: 1462/2878 cut-off events. [2021-03-12 00:09:03,742 INFO L130 PetriNetUnfolder]: For 133814/133829 co-relation queries the response was YES. [2021-03-12 00:09:03,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29303 conditions, 2878 events. 1462/2878 cut-off events. For 133814/133829 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 21176 event pairs, 248 based on Foata normal form. 2/2880 useless extension candidates. Maximal degree in co-relation 29151. Up to 1314 conditions per place. [2021-03-12 00:09:03,786 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 357 selfloop transitions, 272 changer transitions 4/639 dead transitions. [2021-03-12 00:09:03,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 639 transitions, 22815 flow [2021-03-12 00:09:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:03,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-12 00:09:03,788 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2021-03-12 00:09:03,788 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-12 00:09:03,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-12 00:09:03,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:03,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-12 00:09:03,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:03,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:03,788 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:03,788 INFO L185 Difference]: Start difference. First operand has 459 places, 618 transitions, 21340 flow. Second operand 8 states and 174 transitions. [2021-03-12 00:09:03,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 639 transitions, 22815 flow [2021-03-12 00:09:04,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 639 transitions, 22401 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:04,224 INFO L241 Difference]: Finished difference. Result has 460 places, 619 transitions, 21494 flow [2021-03-12 00:09:04,225 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20936, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21494, PETRI_PLACES=460, PETRI_TRANSITIONS=619} [2021-03-12 00:09:04,225 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 437 predicate places. [2021-03-12 00:09:04,225 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 619 transitions, 21494 flow [2021-03-12 00:09:04,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:04,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:04,225 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:04,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:04,425 INFO L428 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:04,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:04,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1113939894, now seen corresponding path program 87 times [2021-03-12 00:09:04,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:04,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504121990] [2021-03-12 00:09:04,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:04,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-12 00:09:04,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,444 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:04,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:04,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504121990] [2021-03-12 00:09:04,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167938124] [2021-03-12 00:09:04,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:04,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:09:04,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:04,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:04,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:04,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:04,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:04,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:04,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:04,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:04,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:04,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:04,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:04,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:04,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:04,545 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-03-12 00:09:04,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-12 00:09:04,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-12 00:09:04,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:09:04,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,548 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:04,549 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,550 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:04,551 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:04,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:04,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:04,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:04,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:04,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:09:04,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,571 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:04,571 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:04,573 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:04,573 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:04,574 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:09:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:04,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:04,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-12 00:09:04,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091800335] [2021-03-12 00:09:04,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-12 00:09:04,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:04,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-12 00:09:04,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-12 00:09:04,588 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:04,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 619 transitions, 21494 flow. Second operand has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:04,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:04,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:04,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:05,587 INFO L129 PetriNetUnfolder]: 1460/2871 cut-off events. [2021-03-12 00:09:05,587 INFO L130 PetriNetUnfolder]: For 136228/136243 co-relation queries the response was YES. [2021-03-12 00:09:05,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29295 conditions, 2871 events. 1460/2871 cut-off events. For 136228/136243 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 21054 event pairs, 235 based on Foata normal form. 1/2872 useless extension candidates. Maximal degree in co-relation 29142. Up to 1314 conditions per place. [2021-03-12 00:09:05,631 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 357 selfloop transitions, 268 changer transitions 4/635 dead transitions. [2021-03-12 00:09:05,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 635 transitions, 22901 flow [2021-03-12 00:09:05,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:09:05,632 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:09:05,632 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:09:05,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:09:05,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:05,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:09:05,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:05,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:05,632 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:05,632 INFO L185 Difference]: Start difference. First operand has 460 places, 619 transitions, 21494 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:09:05,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 635 transitions, 22901 flow [2021-03-12 00:09:06,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 635 transitions, 22374 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:06,060 INFO L241 Difference]: Finished difference. Result has 461 places, 617 transitions, 21433 flow [2021-03-12 00:09:06,060 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20973, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21433, PETRI_PLACES=461, PETRI_TRANSITIONS=617} [2021-03-12 00:09:06,060 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 438 predicate places. [2021-03-12 00:09:06,060 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 617 transitions, 21433 flow [2021-03-12 00:09:06,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 17.076923076923077) internal successors, (222), 13 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:06,060 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:06,060 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:06,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable465 [2021-03-12 00:09:06,261 INFO L428 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:06,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:06,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2015220908, now seen corresponding path program 88 times [2021-03-12 00:09:06,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:06,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135342347] [2021-03-12 00:09:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:06,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:06,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:06,281 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:06,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:06,289 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:06,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:06,298 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-03-12 00:09:06,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:06,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:06,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135342347] [2021-03-12 00:09:06,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738722216] [2021-03-12 00:09:06,325 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:06,343 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:09:06,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:06,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:06,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:06,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:06,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:06,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:06,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:06,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:06,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:06,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:06,353 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:09:06,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:06,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:09:06,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:06,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:09:06,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,356 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:06,356 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:06,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:06,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:06,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:09:06,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-12 00:09:06,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:09:06,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,390 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:06,390 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,390 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-12 00:09:06,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:06,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:06,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:06,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-12 00:09:06,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:06,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:06,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:06,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:06,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:06,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:06,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-03-12 00:09:06,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973835919] [2021-03-12 00:09:06,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-12 00:09:06,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:06,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-12 00:09:06,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-03-12 00:09:06,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:06,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 617 transitions, 21433 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:06,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:06,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:06,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:07,410 INFO L129 PetriNetUnfolder]: 1459/2865 cut-off events. [2021-03-12 00:09:07,411 INFO L130 PetriNetUnfolder]: For 135367/135382 co-relation queries the response was YES. [2021-03-12 00:09:07,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29228 conditions, 2865 events. 1459/2865 cut-off events. For 135367/135382 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 20958 event pairs, 235 based on Foata normal form. 2/2867 useless extension candidates. Maximal degree in co-relation 29077. Up to 1314 conditions per place. [2021-03-12 00:09:07,456 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 344 selfloop transitions, 279 changer transitions 4/633 dead transitions. [2021-03-12 00:09:07,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 633 transitions, 22845 flow [2021-03-12 00:09:07,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:07,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-12 00:09:07,457 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2021-03-12 00:09:07,457 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-12 00:09:07,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-12 00:09:07,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:07,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-12 00:09:07,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:07,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:07,458 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:07,458 INFO L185 Difference]: Start difference. First operand has 461 places, 617 transitions, 21433 flow. Second operand 8 states and 170 transitions. [2021-03-12 00:09:07,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 633 transitions, 22845 flow [2021-03-12 00:09:07,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 633 transitions, 22232 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-03-12 00:09:07,887 INFO L241 Difference]: Finished difference. Result has 457 places, 616 transitions, 21353 flow [2021-03-12 00:09:07,887 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20826, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21353, PETRI_PLACES=457, PETRI_TRANSITIONS=616} [2021-03-12 00:09:07,887 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 434 predicate places. [2021-03-12 00:09:07,887 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 616 transitions, 21353 flow [2021-03-12 00:09:07,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:07,888 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:07,888 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:08,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470,97 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:08,091 INFO L428 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:08,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash -382967322, now seen corresponding path program 89 times [2021-03-12 00:09:08,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:08,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528355469] [2021-03-12 00:09:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:08,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:08,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:08,106 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:08,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,115 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:08,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:08,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528355469] [2021-03-12 00:09:08,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464371018] [2021-03-12 00:09:08,141 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:08,160 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:08,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:08,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:08,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:08,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:08,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:08,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:08,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:08,170 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:09:08,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:09:08,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:09:08,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,173 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:08,173 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:08,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:08,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:08,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:08,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-12 00:09:08,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:08,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:08,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,211 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:08,211 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:08,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:08,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:08,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:08,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:08,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:09:08,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,233 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:08,233 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:08,235 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:08,236 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:08,236 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:09:08,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:08,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:08,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:08,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:08,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057597490] [2021-03-12 00:09:08,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:09:08,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:08,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:09:08,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:09:08,251 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:08,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 616 transitions, 21353 flow. Second operand has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:08,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:08,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:08,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:09,231 INFO L129 PetriNetUnfolder]: 1457/2847 cut-off events. [2021-03-12 00:09:09,232 INFO L130 PetriNetUnfolder]: For 134153/134168 co-relation queries the response was YES. [2021-03-12 00:09:09,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29099 conditions, 2847 events. 1457/2847 cut-off events. For 134153/134168 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 20703 event pairs, 229 based on Foata normal form. 1/2848 useless extension candidates. Maximal degree in co-relation 28948. Up to 1314 conditions per place. [2021-03-12 00:09:09,276 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 345 selfloop transitions, 276 changer transitions 4/631 dead transitions. [2021-03-12 00:09:09,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 631 transitions, 22748 flow [2021-03-12 00:09:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2021-03-12 00:09:09,277 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-12 00:09:09,277 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 168 transitions. [2021-03-12 00:09:09,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 168 transitions. [2021-03-12 00:09:09,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:09,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 168 transitions. [2021-03-12 00:09:09,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:09,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:09,277 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:09,277 INFO L185 Difference]: Start difference. First operand has 457 places, 616 transitions, 21353 flow. Second operand 8 states and 168 transitions. [2021-03-12 00:09:09,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 631 transitions, 22748 flow [2021-03-12 00:09:09,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 631 transitions, 22177 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-12 00:09:09,706 INFO L241 Difference]: Finished difference. Result has 456 places, 614 transitions, 21265 flow [2021-03-12 00:09:09,706 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20786, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21265, PETRI_PLACES=456, PETRI_TRANSITIONS=614} [2021-03-12 00:09:09,707 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 433 predicate places. [2021-03-12 00:09:09,707 INFO L480 AbstractCegarLoop]: Abstraction has has 456 places, 614 transitions, 21265 flow [2021-03-12 00:09:09,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 17.09090909090909) internal successors, (188), 11 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:09,707 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:09,707 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:09,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:09,907 INFO L428 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:09,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1330444106, now seen corresponding path program 90 times [2021-03-12 00:09:09,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:09,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206832415] [2021-03-12 00:09:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:09,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:09,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:09,931 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-12 00:09:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:09,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:09,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:09,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:09,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206832415] [2021-03-12 00:09:09,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438377804] [2021-03-12 00:09:09,965 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:09,984 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:09:09,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:09,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-03-12 00:09:09,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:09,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:09,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:09,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:09:09,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:09,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:09,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:09,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:09,994 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size [2021-03-12 00:09:09,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:09,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:09,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:09:09,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:09,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:09,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-12 00:09:09,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,996 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:09,997 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:09,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:09,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:09,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:09,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:10,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-12 00:09:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:10,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,013 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-12 00:09:10,013 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:10,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:10,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:10,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-12 00:09:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-12 00:09:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-12 00:09:10,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,036 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:10,037 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:10,039 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:10,039 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:10,040 INFO L142 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-03-12 00:09:10,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:10,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:10,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:10,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:10,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:10,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541802392] [2021-03-12 00:09:10,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:10,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:10,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:10,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:10,059 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 35 [2021-03-12 00:09:10,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 614 transitions, 21265 flow. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:10,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:10,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 35 [2021-03-12 00:09:10,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:11,075 INFO L129 PetriNetUnfolder]: 1456/2844 cut-off events. [2021-03-12 00:09:11,075 INFO L130 PetriNetUnfolder]: For 134462/134477 co-relation queries the response was YES. [2021-03-12 00:09:11,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29030 conditions, 2844 events. 1456/2844 cut-off events. For 134462/134477 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 20702 event pairs, 226 based on Foata normal form. 1/2845 useless extension candidates. Maximal degree in co-relation 28881. Up to 1314 conditions per place. [2021-03-12 00:09:11,120 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 341 selfloop transitions, 274 changer transitions 5/626 dead transitions. [2021-03-12 00:09:11,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 626 transitions, 22622 flow [2021-03-12 00:09:11,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 00:09:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-12 00:09:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2021-03-12 00:09:11,121 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2021-03-12 00:09:11,121 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 164 transitions. [2021-03-12 00:09:11,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 164 transitions. [2021-03-12 00:09:11,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:11,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 164 transitions. [2021-03-12 00:09:11,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.5) internal successors, (164), 8 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:11,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:11,197 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:11,197 INFO L185 Difference]: Start difference. First operand has 456 places, 614 transitions, 21265 flow. Second operand 8 states and 164 transitions. [2021-03-12 00:09:11,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 626 transitions, 22622 flow [2021-03-12 00:09:11,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 626 transitions, 22064 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:11,601 INFO L241 Difference]: Finished difference. Result has 455 places, 611 transitions, 21128 flow [2021-03-12 00:09:11,601 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20709, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=21128, PETRI_PLACES=455, PETRI_TRANSITIONS=611} [2021-03-12 00:09:11,601 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 432 predicate places. [2021-03-12 00:09:11,601 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 611 transitions, 21128 flow [2021-03-12 00:09:11,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:11,601 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:11,601 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:11,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:11,802 INFO L428 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:11,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1081055050, now seen corresponding path program 1 times [2021-03-12 00:09:11,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:11,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859530329] [2021-03-12 00:09:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:11,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:11,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859530329] [2021-03-12 00:09:11,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765010794] [2021-03-12 00:09:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:11,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:11,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:11,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:11,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:11,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:11,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:11,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:11,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:11,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:11,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:11,888 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:11,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:11,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:11,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:11,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:11,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:11,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:11,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:09:11,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948885413] [2021-03-12 00:09:11,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:09:11,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:11,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:09:11,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:09:11,897 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:11,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 611 transitions, 21128 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:11,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:11,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:11,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:12,746 INFO L129 PetriNetUnfolder]: 1587/3080 cut-off events. [2021-03-12 00:09:12,746 INFO L130 PetriNetUnfolder]: For 138980/138995 co-relation queries the response was YES. [2021-03-12 00:09:12,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30415 conditions, 3080 events. 1587/3080 cut-off events. For 138980/138995 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 22657 event pairs, 177 based on Foata normal form. 16/3096 useless extension candidates. Maximal degree in co-relation 30266. Up to 1187 conditions per place. [2021-03-12 00:09:12,794 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 433 selfloop transitions, 221 changer transitions 0/661 dead transitions. [2021-03-12 00:09:12,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 661 transitions, 23218 flow [2021-03-12 00:09:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:09:12,795 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:09:12,795 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:09:12,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:09:12,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:12,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:09:12,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:12,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:12,795 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:12,795 INFO L185 Difference]: Start difference. First operand has 455 places, 611 transitions, 21128 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:09:12,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 661 transitions, 23218 flow [2021-03-12 00:09:13,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 661 transitions, 22600 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:13,277 INFO L241 Difference]: Finished difference. Result has 452 places, 614 transitions, 21124 flow [2021-03-12 00:09:13,277 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20524, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21124, PETRI_PLACES=452, PETRI_TRANSITIONS=614} [2021-03-12 00:09:13,277 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 429 predicate places. [2021-03-12 00:09:13,277 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 614 transitions, 21124 flow [2021-03-12 00:09:13,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:13,277 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:13,277 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:13,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable483 [2021-03-12 00:09:13,478 INFO L428 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:13,478 INFO L82 PathProgramCache]: Analyzing trace with hash -776184005, now seen corresponding path program 1 times [2021-03-12 00:09:13,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:13,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225205753] [2021-03-12 00:09:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:13,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:13,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:13,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225205753] [2021-03-12 00:09:13,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767901420] [2021-03-12 00:09:13,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:13,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:13,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:13,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:13,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:13,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:13,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:13,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:13,552 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:09:13,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:09:13,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:13,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,555 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:13,556 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,557 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:13,558 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,558 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:13,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:13,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:13,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:13,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:13,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:13,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:13,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:13,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524157555] [2021-03-12 00:09:13,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:13,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:13,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:13,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:13,580 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:13,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 614 transitions, 21124 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:13,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:13,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:13,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:14,416 INFO L129 PetriNetUnfolder]: 1555/3021 cut-off events. [2021-03-12 00:09:14,416 INFO L130 PetriNetUnfolder]: For 138891/138896 co-relation queries the response was YES. [2021-03-12 00:09:14,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29606 conditions, 3021 events. 1555/3021 cut-off events. For 138891/138896 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 22116 event pairs, 217 based on Foata normal form. 18/3039 useless extension candidates. Maximal degree in co-relation 29456. Up to 1535 conditions per place. [2021-03-12 00:09:14,463 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 386 selfloop transitions, 234 changer transitions 9/636 dead transitions. [2021-03-12 00:09:14,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 636 transitions, 22254 flow [2021-03-12 00:09:14,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:09:14,464 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:09:14,464 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:09:14,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:09:14,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:14,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:09:14,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:14,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:14,464 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:14,464 INFO L185 Difference]: Start difference. First operand has 452 places, 614 transitions, 21124 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:09:14,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 636 transitions, 22254 flow [2021-03-12 00:09:14,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 636 transitions, 21808 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:14,931 INFO L241 Difference]: Finished difference. Result has 454 places, 601 transitions, 20331 flow [2021-03-12 00:09:14,932 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20178, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20331, PETRI_PLACES=454, PETRI_TRANSITIONS=601} [2021-03-12 00:09:14,932 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 431 predicate places. [2021-03-12 00:09:14,932 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 601 transitions, 20331 flow [2021-03-12 00:09:14,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:14,932 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:14,932 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:15,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484,101 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:15,132 INFO L428 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:15,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1778928011, now seen corresponding path program 2 times [2021-03-12 00:09:15,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:15,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026998247] [2021-03-12 00:09:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:15,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:15,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026998247] [2021-03-12 00:09:15,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32832013] [2021-03-12 00:09:15,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:15,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:15,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:15,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:15,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:15,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:15,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:15,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:15,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:15,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:15,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:15,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:15,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:15,227 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:15,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:15,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:15,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:15,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:15,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:15,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:15,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:15,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:09:15,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10517792] [2021-03-12 00:09:15,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:09:15,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:15,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:09:15,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:09:15,234 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:15,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 601 transitions, 20331 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:15,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:15,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:15,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:16,098 INFO L129 PetriNetUnfolder]: 1695/3251 cut-off events. [2021-03-12 00:09:16,098 INFO L130 PetriNetUnfolder]: For 137349/137364 co-relation queries the response was YES. [2021-03-12 00:09:16,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30934 conditions, 3251 events. 1695/3251 cut-off events. For 137349/137364 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 23863 event pairs, 205 based on Foata normal form. 16/3267 useless extension candidates. Maximal degree in co-relation 30784. Up to 1275 conditions per place. [2021-03-12 00:09:16,150 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 434 selfloop transitions, 210 changer transitions 0/651 dead transitions. [2021-03-12 00:09:16,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 651 transitions, 22421 flow [2021-03-12 00:09:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:16,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:09:16,151 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:09:16,152 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:09:16,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:09:16,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:16,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:09:16,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:16,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:16,152 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:16,152 INFO L185 Difference]: Start difference. First operand has 454 places, 601 transitions, 20331 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:09:16,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 651 transitions, 22421 flow [2021-03-12 00:09:16,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 651 transitions, 21929 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:16,654 INFO L241 Difference]: Finished difference. Result has 455 places, 604 transitions, 20430 flow [2021-03-12 00:09:16,654 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19851, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20430, PETRI_PLACES=455, PETRI_TRANSITIONS=604} [2021-03-12 00:09:16,654 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 432 predicate places. [2021-03-12 00:09:16,654 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 604 transitions, 20430 flow [2021-03-12 00:09:16,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:16,654 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:16,655 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:16,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable487 [2021-03-12 00:09:16,876 INFO L428 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:16,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1399934482, now seen corresponding path program 2 times [2021-03-12 00:09:16,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:16,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165899446] [2021-03-12 00:09:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:16,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:16,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:16,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165899446] [2021-03-12 00:09:16,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797974657] [2021-03-12 00:09:16,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:16,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:16,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:16,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:16,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:16,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:16,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:16,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:16,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:16,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:16,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:16,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:16,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:16,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:16,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:16,969 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:16,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:16,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:16,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:16,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:16,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:16,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:16,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:16,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:16,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:16,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672979994] [2021-03-12 00:09:16,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:16,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:16,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:16,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:16,979 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:16,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 604 transitions, 20430 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:16,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:16,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:16,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:17,913 INFO L129 PetriNetUnfolder]: 1743/3379 cut-off events. [2021-03-12 00:09:17,914 INFO L130 PetriNetUnfolder]: For 139648/139663 co-relation queries the response was YES. [2021-03-12 00:09:17,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31573 conditions, 3379 events. 1743/3379 cut-off events. For 139648/139663 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 25223 event pairs, 200 based on Foata normal form. 16/3395 useless extension candidates. Maximal degree in co-relation 31422. Up to 1307 conditions per place. [2021-03-12 00:09:17,967 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 458 selfloop transitions, 191 changer transitions 0/656 dead transitions. [2021-03-12 00:09:17,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 656 transitions, 22564 flow [2021-03-12 00:09:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:17,968 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:17,968 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:17,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:17,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:17,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:17,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:17,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:17,968 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:17,968 INFO L185 Difference]: Start difference. First operand has 455 places, 604 transitions, 20430 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:17,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 656 transitions, 22564 flow [2021-03-12 00:09:18,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 656 transitions, 22126 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:18,468 INFO L241 Difference]: Finished difference. Result has 459 places, 609 transitions, 20561 flow [2021-03-12 00:09:18,469 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20004, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20561, PETRI_PLACES=459, PETRI_TRANSITIONS=609} [2021-03-12 00:09:18,469 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 436 predicate places. [2021-03-12 00:09:18,469 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 609 transitions, 20561 flow [2021-03-12 00:09:18,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:18,469 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:18,469 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:18,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable488 [2021-03-12 00:09:18,669 INFO L428 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:18,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1234737645, now seen corresponding path program 3 times [2021-03-12 00:09:18,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:18,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095970453] [2021-03-12 00:09:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:18,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:18,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:18,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:18,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:18,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095970453] [2021-03-12 00:09:18,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194664711] [2021-03-12 00:09:18,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:18,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:09:18,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:18,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:18,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:18,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:18,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:18,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:18,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:18,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:18,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:18,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:18,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:18,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:18,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:18,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:18,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:18,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:18,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:18,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:18,782 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:18,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:18,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:18,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:18,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:18,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:18,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:18,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:18,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180055647] [2021-03-12 00:09:18,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:18,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:18,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:18,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:18,790 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:18,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 609 transitions, 20561 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:18,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:18,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:18,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:19,748 INFO L129 PetriNetUnfolder]: 1735/3352 cut-off events. [2021-03-12 00:09:19,749 INFO L130 PetriNetUnfolder]: For 140659/140674 co-relation queries the response was YES. [2021-03-12 00:09:19,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31621 conditions, 3352 events. 1735/3352 cut-off events. For 140659/140674 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 24923 event pairs, 266 based on Foata normal form. 16/3368 useless extension candidates. Maximal degree in co-relation 31468. Up to 1775 conditions per place. [2021-03-12 00:09:19,797 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 396 selfloop transitions, 235 changer transitions 0/638 dead transitions. [2021-03-12 00:09:19,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 638 transitions, 22165 flow [2021-03-12 00:09:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:19,798 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:19,798 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:19,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:19,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:19,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:19,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:19,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:19,799 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:19,799 INFO L185 Difference]: Start difference. First operand has 459 places, 609 transitions, 20561 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:19,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 638 transitions, 22165 flow [2021-03-12 00:09:20,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 638 transitions, 21860 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-12 00:09:20,243 INFO L241 Difference]: Finished difference. Result has 462 places, 607 transitions, 20672 flow [2021-03-12 00:09:20,244 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20202, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20672, PETRI_PLACES=462, PETRI_TRANSITIONS=607} [2021-03-12 00:09:20,244 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 439 predicate places. [2021-03-12 00:09:20,244 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 607 transitions, 20672 flow [2021-03-12 00:09:20,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:20,244 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:20,244 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:20,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable489 [2021-03-12 00:09:20,444 INFO L428 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:20,445 INFO L82 PathProgramCache]: Analyzing trace with hash -876022940, now seen corresponding path program 3 times [2021-03-12 00:09:20,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:20,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320972904] [2021-03-12 00:09:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:20,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:20,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:20,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320972904] [2021-03-12 00:09:20,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702355638] [2021-03-12 00:09:20,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:20,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:09:20,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:20,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:20,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:20,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:20,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:20,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,524 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:20,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:20,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:20,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:20,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,527 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:20,527 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,529 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:20,529 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:20,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:20,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:20,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:20,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:20,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744105864] [2021-03-12 00:09:20,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:20,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:20,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:20,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:20,548 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:20,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 607 transitions, 20672 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:20,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:20,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:20,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:21,448 INFO L129 PetriNetUnfolder]: 1703/3288 cut-off events. [2021-03-12 00:09:21,448 INFO L130 PetriNetUnfolder]: For 142454/142469 co-relation queries the response was YES. [2021-03-12 00:09:21,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31325 conditions, 3288 events. 1703/3288 cut-off events. For 142454/142469 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 24386 event pairs, 209 based on Foata normal form. 24/3312 useless extension candidates. Maximal degree in co-relation 31172. Up to 1307 conditions per place. [2021-03-12 00:09:21,504 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 448 selfloop transitions, 178 changer transitions 9/642 dead transitions. [2021-03-12 00:09:21,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 642 transitions, 22282 flow [2021-03-12 00:09:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:21,505 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:21,505 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:21,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:21,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:21,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:21,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:21,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:21,506 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:21,506 INFO L185 Difference]: Start difference. First operand has 462 places, 607 transitions, 20672 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:21,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 642 transitions, 22282 flow [2021-03-12 00:09:21,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 642 transitions, 21824 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:21,977 INFO L241 Difference]: Finished difference. Result has 463 places, 594 transitions, 20074 flow [2021-03-12 00:09:21,977 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19900, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20074, PETRI_PLACES=463, PETRI_TRANSITIONS=594} [2021-03-12 00:09:21,977 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 440 predicate places. [2021-03-12 00:09:21,977 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 594 transitions, 20074 flow [2021-03-12 00:09:21,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:21,977 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:21,977 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:22,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable490 [2021-03-12 00:09:22,178 INFO L428 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:22,178 INFO L82 PathProgramCache]: Analyzing trace with hash -2014542271, now seen corresponding path program 4 times [2021-03-12 00:09:22,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:22,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147206388] [2021-03-12 00:09:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:22,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:22,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:22,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147206388] [2021-03-12 00:09:22,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205489893] [2021-03-12 00:09:22,206 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:22,226 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:09:22,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:22,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:22,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:22,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:22,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,262 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:22,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:22,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:22,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:22,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,265 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:22,266 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,267 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:22,267 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:22,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:22,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:22,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:22,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:22,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:22,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:22,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:22,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:22,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:22,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723827484] [2021-03-12 00:09:22,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:22,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:22,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:22,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:22,288 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:22,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 594 transitions, 20074 flow. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:22,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:22,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:22,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:23,154 INFO L129 PetriNetUnfolder]: 1663/3202 cut-off events. [2021-03-12 00:09:23,154 INFO L130 PetriNetUnfolder]: For 137575/137580 co-relation queries the response was YES. [2021-03-12 00:09:23,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30319 conditions, 3202 events. 1663/3202 cut-off events. For 137575/137580 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 23548 event pairs, 272 based on Foata normal form. 18/3220 useless extension candidates. Maximal degree in co-relation 30166. Up to 1727 conditions per place. [2021-03-12 00:09:23,286 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 382 selfloop transitions, 215 changer transitions 9/613 dead transitions. [2021-03-12 00:09:23,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 613 transitions, 21172 flow [2021-03-12 00:09:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:23,287 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:23,287 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:23,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:23,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:23,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:23,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:23,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:23,287 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:23,287 INFO L185 Difference]: Start difference. First operand has 463 places, 594 transitions, 20074 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:23,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 613 transitions, 21172 flow [2021-03-12 00:09:23,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 613 transitions, 20798 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:23,697 INFO L241 Difference]: Finished difference. Result has 461 places, 581 transitions, 19517 flow [2021-03-12 00:09:23,697 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19272, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19517, PETRI_PLACES=461, PETRI_TRANSITIONS=581} [2021-03-12 00:09:23,697 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 438 predicate places. [2021-03-12 00:09:23,697 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 581 transitions, 19517 flow [2021-03-12 00:09:23,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:23,697 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:23,697 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:23,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493,106 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:23,898 INFO L428 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:23,898 INFO L82 PathProgramCache]: Analyzing trace with hash 244855681, now seen corresponding path program 5 times [2021-03-12 00:09:23,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:23,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905096515] [2021-03-12 00:09:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:23,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:23,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:23,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:23,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905096515] [2021-03-12 00:09:23,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774751539] [2021-03-12 00:09:23,928 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:23,948 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:23,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:23,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:23,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:23,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:23,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:23,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:23,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:23,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:23,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:23,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:23,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:23,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:23,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:23,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:23,989 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:23,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:23,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:23,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:23,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:23,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:23,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:23,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:23,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999939438] [2021-03-12 00:09:23,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:23,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:23,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:23,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:23,998 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:23,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 581 transitions, 19517 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:23,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:23,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:23,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:24,853 INFO L129 PetriNetUnfolder]: 1663/3181 cut-off events. [2021-03-12 00:09:24,854 INFO L130 PetriNetUnfolder]: For 133152/133167 co-relation queries the response was YES. [2021-03-12 00:09:24,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30173 conditions, 3181 events. 1663/3181 cut-off events. For 133152/133167 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 23119 event pairs, 207 based on Foata normal form. 16/3197 useless extension candidates. Maximal degree in co-relation 30020. Up to 1275 conditions per place. [2021-03-12 00:09:24,902 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 424 selfloop transitions, 199 changer transitions 0/630 dead transitions. [2021-03-12 00:09:24,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 630 transitions, 21526 flow [2021-03-12 00:09:24,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:24,903 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:24,903 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:24,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:24,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:24,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:24,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:24,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:24,903 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:24,903 INFO L185 Difference]: Start difference. First operand has 461 places, 581 transitions, 19517 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:24,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 630 transitions, 21526 flow [2021-03-12 00:09:25,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 630 transitions, 21080 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:25,356 INFO L241 Difference]: Finished difference. Result has 462 places, 586 transitions, 19670 flow [2021-03-12 00:09:25,356 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19079, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19670, PETRI_PLACES=462, PETRI_TRANSITIONS=586} [2021-03-12 00:09:25,356 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 439 predicate places. [2021-03-12 00:09:25,356 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 586 transitions, 19670 flow [2021-03-12 00:09:25,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:25,356 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:25,356 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:25,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:25,577 INFO L428 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:25,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1073625988, now seen corresponding path program 4 times [2021-03-12 00:09:25,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:25,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750662755] [2021-03-12 00:09:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:25,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:25,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:25,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:25,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750662755] [2021-03-12 00:09:25,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106859728] [2021-03-12 00:09:25,617 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:25,642 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:09:25,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:25,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:25,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:25,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:25,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:25,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:25,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:25,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:25,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:25,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:25,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:25,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:25,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:25,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:25,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:25,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:25,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:25,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:25,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:25,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:25,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:25,694 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:25,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:25,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:25,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:25,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:25,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:25,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:25,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:25,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529933802] [2021-03-12 00:09:25,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:25,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:25,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:25,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:25,704 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:25,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 586 transitions, 19670 flow. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:25,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:25,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:25,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:26,583 INFO L129 PetriNetUnfolder]: 1655/3186 cut-off events. [2021-03-12 00:09:26,583 INFO L130 PetriNetUnfolder]: For 132895/132910 co-relation queries the response was YES. [2021-03-12 00:09:26,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30310 conditions, 3186 events. 1655/3186 cut-off events. For 132895/132910 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 23368 event pairs, 241 based on Foata normal form. 16/3202 useless extension candidates. Maximal degree in co-relation 30155. Up to 1711 conditions per place. [2021-03-12 00:09:26,636 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 383 selfloop transitions, 231 changer transitions 0/621 dead transitions. [2021-03-12 00:09:26,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 621 transitions, 21398 flow [2021-03-12 00:09:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:26,637 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:26,637 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:26,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:26,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:26,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:26,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:26,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:26,638 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:26,638 INFO L185 Difference]: Start difference. First operand has 462 places, 586 transitions, 19670 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:26,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 621 transitions, 21398 flow [2021-03-12 00:09:27,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 621 transitions, 21097 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-12 00:09:27,104 INFO L241 Difference]: Finished difference. Result has 466 places, 588 transitions, 19919 flow [2021-03-12 00:09:27,104 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19369, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19919, PETRI_PLACES=466, PETRI_TRANSITIONS=588} [2021-03-12 00:09:27,104 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 443 predicate places. [2021-03-12 00:09:27,104 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 588 transitions, 19919 flow [2021-03-12 00:09:27,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:27,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:27,105 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:27,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable497 [2021-03-12 00:09:27,319 INFO L428 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:27,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1241800144, now seen corresponding path program 5 times [2021-03-12 00:09:27,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:27,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416344877] [2021-03-12 00:09:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:27,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:27,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:27,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:27,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416344877] [2021-03-12 00:09:27,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727966021] [2021-03-12 00:09:27,350 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:27,370 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:27,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:27,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:27,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:27,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:27,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:27,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:27,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:27,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:27,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,410 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:27,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:27,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:27,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,414 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:27,415 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,417 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:27,417 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:27,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:27,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:27,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:27,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:27,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:27,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:27,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:27,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888682368] [2021-03-12 00:09:27,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:27,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:27,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:27,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:27,442 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:27,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 588 transitions, 19919 flow. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:27,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:27,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:27,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:28,278 INFO L129 PetriNetUnfolder]: 1639/3156 cut-off events. [2021-03-12 00:09:28,278 INFO L130 PetriNetUnfolder]: For 135727/135742 co-relation queries the response was YES. [2021-03-12 00:09:28,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30085 conditions, 3156 events. 1639/3156 cut-off events. For 135727/135742 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 23090 event pairs, 246 based on Foata normal form. 24/3180 useless extension candidates. Maximal degree in co-relation 29929. Up to 1711 conditions per place. [2021-03-12 00:09:28,327 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 386 selfloop transitions, 211 changer transitions 9/613 dead transitions. [2021-03-12 00:09:28,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 613 transitions, 21127 flow [2021-03-12 00:09:28,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:28,328 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:28,329 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:28,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:28,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:28,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:28,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:28,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:28,329 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:28,329 INFO L185 Difference]: Start difference. First operand has 466 places, 588 transitions, 19919 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:28,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 613 transitions, 21127 flow [2021-03-12 00:09:28,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 613 transitions, 20657 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:28,831 INFO L241 Difference]: Finished difference. Result has 466 places, 575 transitions, 19259 flow [2021-03-12 00:09:28,831 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19007, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19259, PETRI_PLACES=466, PETRI_TRANSITIONS=575} [2021-03-12 00:09:28,831 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 443 predicate places. [2021-03-12 00:09:28,831 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 575 transitions, 19259 flow [2021-03-12 00:09:28,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:28,831 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:28,831 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:29,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable498 [2021-03-12 00:09:29,047 INFO L428 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:29,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1125301653, now seen corresponding path program 6 times [2021-03-12 00:09:29,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:29,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031186628] [2021-03-12 00:09:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:29,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:29,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:29,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031186628] [2021-03-12 00:09:29,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60693556] [2021-03-12 00:09:29,078 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:29,106 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:09:29,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:29,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:29,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:29,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:29,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:29,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,136 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:29,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:29,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:29,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:29,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,139 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:29,139 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,141 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:29,141 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:29,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:29,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:29,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:29,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:29,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:29,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:29,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:29,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:29,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632508267] [2021-03-12 00:09:29,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:29,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:29,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:29,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:29,160 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:29,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 575 transitions, 19259 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:29,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:29,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:29,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:29,973 INFO L129 PetriNetUnfolder]: 1599/3071 cut-off events. [2021-03-12 00:09:29,973 INFO L130 PetriNetUnfolder]: For 127606/127621 co-relation queries the response was YES. [2021-03-12 00:09:30,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29291 conditions, 3071 events. 1599/3071 cut-off events. For 127606/127621 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 22282 event pairs, 195 based on Foata normal form. 24/3095 useless extension candidates. Maximal degree in co-relation 29136. Up to 1275 conditions per place. [2021-03-12 00:09:30,020 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 411 selfloop transitions, 178 changer transitions 9/605 dead transitions. [2021-03-12 00:09:30,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 605 transitions, 20691 flow [2021-03-12 00:09:30,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:30,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:30,021 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:30,021 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:30,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:30,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:30,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:30,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:30,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:30,022 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:30,022 INFO L185 Difference]: Start difference. First operand has 466 places, 575 transitions, 19259 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:30,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 605 transitions, 20691 flow [2021-03-12 00:09:30,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 605 transitions, 20247 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:30,487 INFO L241 Difference]: Finished difference. Result has 464 places, 562 transitions, 18701 flow [2021-03-12 00:09:30,488 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18523, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18701, PETRI_PLACES=464, PETRI_TRANSITIONS=562} [2021-03-12 00:09:30,488 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 441 predicate places. [2021-03-12 00:09:30,488 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 562 transitions, 18701 flow [2021-03-12 00:09:30,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:30,488 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:30,488 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:30,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable501 [2021-03-12 00:09:30,696 INFO L428 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:30,697 INFO L82 PathProgramCache]: Analyzing trace with hash 294323360, now seen corresponding path program 6 times [2021-03-12 00:09:30,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:30,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870955246] [2021-03-12 00:09:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:30,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:30,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:30,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870955246] [2021-03-12 00:09:30,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288884794] [2021-03-12 00:09:30,724 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:09:30,762 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:09:30,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:30,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:30,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:30,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:09:30,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:30,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:30,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:30,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:30,790 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:09:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:09:30,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:30,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,796 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:30,797 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,799 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:30,799 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,800 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:30,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:30,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:30,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:30,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:30,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:30,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:30,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606215202] [2021-03-12 00:09:30,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:30,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:30,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:30,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:30,825 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:30,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 562 transitions, 18701 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:30,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:30,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:30,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:31,673 INFO L129 PetriNetUnfolder]: 1559/2969 cut-off events. [2021-03-12 00:09:31,673 INFO L130 PetriNetUnfolder]: For 122467/122482 co-relation queries the response was YES. [2021-03-12 00:09:31,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28157 conditions, 2969 events. 1559/2969 cut-off events. For 122467/122482 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 21297 event pairs, 233 based on Foata normal form. 24/2993 useless extension candidates. Maximal degree in co-relation 28002. Up to 1663 conditions per place. [2021-03-12 00:09:31,716 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 361 selfloop transitions, 203 changer transitions 9/580 dead transitions. [2021-03-12 00:09:31,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 580 transitions, 19585 flow [2021-03-12 00:09:31,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:09:31,717 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:09:31,717 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:09:31,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:09:31,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:31,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:09:31,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:31,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:31,718 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:31,718 INFO L185 Difference]: Start difference. First operand has 464 places, 562 transitions, 18701 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:09:31,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 580 transitions, 19585 flow [2021-03-12 00:09:32,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 580 transitions, 19201 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:32,148 INFO L241 Difference]: Finished difference. Result has 462 places, 549 transitions, 17844 flow [2021-03-12 00:09:32,148 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17757, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17844, PETRI_PLACES=462, PETRI_TRANSITIONS=549} [2021-03-12 00:09:32,148 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 439 predicate places. [2021-03-12 00:09:32,148 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 549 transitions, 17844 flow [2021-03-12 00:09:32,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:32,148 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:32,149 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:32,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:32,350 INFO L428 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:32,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1733360442, now seen corresponding path program 7 times [2021-03-12 00:09:32,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:32,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269200877] [2021-03-12 00:09:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:32,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:32,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269200877] [2021-03-12 00:09:32,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69169037] [2021-03-12 00:09:32,378 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:32,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:32,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:32,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:32,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:32,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,430 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:32,430 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,432 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:32,433 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:32,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:32,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:32,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:32,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:32,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:32,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:32,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:32,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:32,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:32,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550606825] [2021-03-12 00:09:32,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:32,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:32,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:32,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:32,454 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:32,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 549 transitions, 17844 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:32,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:32,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:32,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:33,302 INFO L129 PetriNetUnfolder]: 1723/3267 cut-off events. [2021-03-12 00:09:33,302 INFO L130 PetriNetUnfolder]: For 119489/119502 co-relation queries the response was YES. [2021-03-12 00:09:33,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29831 conditions, 3267 events. 1723/3267 cut-off events. For 119489/119502 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 23622 event pairs, 238 based on Foata normal form. 13/3280 useless extension candidates. Maximal degree in co-relation 29677. Up to 1199 conditions per place. [2021-03-12 00:09:33,352 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 449 selfloop transitions, 141 changer transitions 1/598 dead transitions. [2021-03-12 00:09:33,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 598 transitions, 19899 flow [2021-03-12 00:09:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:33,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:09:33,353 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:09:33,353 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:09:33,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:09:33,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:33,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:09:33,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:33,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:33,354 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:33,354 INFO L185 Difference]: Start difference. First operand has 462 places, 549 transitions, 17844 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:09:33,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 598 transitions, 19899 flow [2021-03-12 00:09:33,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 598 transitions, 19465 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:33,838 INFO L241 Difference]: Finished difference. Result has 463 places, 556 transitions, 17949 flow [2021-03-12 00:09:33,839 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17424, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17949, PETRI_PLACES=463, PETRI_TRANSITIONS=556} [2021-03-12 00:09:33,839 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 440 predicate places. [2021-03-12 00:09:33,839 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 556 transitions, 17949 flow [2021-03-12 00:09:33,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:33,839 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:33,839 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:34,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable507 [2021-03-12 00:09:34,040 INFO L428 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:34,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1404334163, now seen corresponding path program 7 times [2021-03-12 00:09:34,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:34,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001223323] [2021-03-12 00:09:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:34,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:34,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:34,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001223323] [2021-03-12 00:09:34,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524774058] [2021-03-12 00:09:34,074 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:34,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:34,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:34,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:34,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:34,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:34,126 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:09:34,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:09:34,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:34,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:09:34,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,129 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:34,129 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,132 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:34,132 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:34,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:34,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:34,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:34,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:34,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:34,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:34,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:34,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:34,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:34,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:34,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383805848] [2021-03-12 00:09:34,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:34,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:34,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:34,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:34,153 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:34,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 556 transitions, 17949 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:34,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:34,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:34,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:34,982 INFO L129 PetriNetUnfolder]: 1705/3263 cut-off events. [2021-03-12 00:09:34,982 INFO L130 PetriNetUnfolder]: For 120981/120996 co-relation queries the response was YES. [2021-03-12 00:09:35,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29522 conditions, 3263 events. 1705/3263 cut-off events. For 120981/120996 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 23874 event pairs, 310 based on Foata normal form. 13/3276 useless extension candidates. Maximal degree in co-relation 29367. Up to 1997 conditions per place. [2021-03-12 00:09:35,035 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 383 selfloop transitions, 176 changer transitions 6/572 dead transitions. [2021-03-12 00:09:35,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 572 transitions, 19042 flow [2021-03-12 00:09:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:09:35,036 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:09:35,036 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:09:35,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:09:35,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:35,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:09:35,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:35,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:35,037 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:35,037 INFO L185 Difference]: Start difference. First operand has 463 places, 556 transitions, 17949 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:09:35,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 572 transitions, 19042 flow [2021-03-12 00:09:35,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 572 transitions, 18698 flow, removed 22 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:35,589 INFO L241 Difference]: Finished difference. Result has 464 places, 549 transitions, 17567 flow [2021-03-12 00:09:35,590 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17375, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=17567, PETRI_PLACES=464, PETRI_TRANSITIONS=549} [2021-03-12 00:09:35,590 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 441 predicate places. [2021-03-12 00:09:35,590 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 549 transitions, 17567 flow [2021-03-12 00:09:35,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:35,590 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:35,590 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:35,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable510 [2021-03-12 00:09:35,790 INFO L428 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:35,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:35,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1123564642, now seen corresponding path program 8 times [2021-03-12 00:09:35,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:35,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053178029] [2021-03-12 00:09:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:35,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:35,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:35,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053178029] [2021-03-12 00:09:35,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206476562] [2021-03-12 00:09:35,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:35,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:35,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:35,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:35,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:35,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:35,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:35,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:35,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:35,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:35,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:35,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:35,880 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:35,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:35,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:35,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:35,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:35,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:35,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:35,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:35,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:09:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709358707] [2021-03-12 00:09:35,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:09:35,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:09:35,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:09:35,885 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:35,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 549 transitions, 17567 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:35,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:35,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:35,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:36,829 INFO L129 PetriNetUnfolder]: 1973/3769 cut-off events. [2021-03-12 00:09:36,829 INFO L130 PetriNetUnfolder]: For 126624/126639 co-relation queries the response was YES. [2021-03-12 00:09:36,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32488 conditions, 3769 events. 1973/3769 cut-off events. For 126624/126639 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 28056 event pairs, 229 based on Foata normal form. 13/3782 useless extension candidates. Maximal degree in co-relation 32335. Up to 1199 conditions per place. [2021-03-12 00:09:36,887 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 455 selfloop transitions, 150 changer transitions 0/612 dead transitions. [2021-03-12 00:09:36,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 612 transitions, 19979 flow [2021-03-12 00:09:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:09:36,888 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:09:36,888 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:09:36,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:09:36,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:36,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:09:36,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:36,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:36,889 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:36,889 INFO L185 Difference]: Start difference. First operand has 464 places, 549 transitions, 17567 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:09:36,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 612 transitions, 19979 flow [2021-03-12 00:09:37,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 612 transitions, 19612 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-12 00:09:37,402 INFO L241 Difference]: Finished difference. Result has 465 places, 562 transitions, 18019 flow [2021-03-12 00:09:37,403 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17200, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18019, PETRI_PLACES=465, PETRI_TRANSITIONS=562} [2021-03-12 00:09:37,403 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 442 predicate places. [2021-03-12 00:09:37,403 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 562 transitions, 18019 flow [2021-03-12 00:09:37,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:37,403 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:37,403 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:37,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable513 [2021-03-12 00:09:37,603 INFO L428 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:37,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:37,604 INFO L82 PathProgramCache]: Analyzing trace with hash -269581878, now seen corresponding path program 9 times [2021-03-12 00:09:37,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:37,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130606719] [2021-03-12 00:09:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:37,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:37,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:37,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130606719] [2021-03-12 00:09:37,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942226553] [2021-03-12 00:09:37,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:37,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:09:37,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:37,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:37,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,682 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:37,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:37,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,685 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:37,686 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:37,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,688 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:37,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:37,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:37,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:37,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:37,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:37,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:37,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:37,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:37,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:37,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144302476] [2021-03-12 00:09:37,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:37,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:37,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:37,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:37,705 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:37,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 562 transitions, 18019 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:37,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:37,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:37,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:38,731 INFO L129 PetriNetUnfolder]: 2099/4030 cut-off events. [2021-03-12 00:09:38,732 INFO L130 PetriNetUnfolder]: For 139016/139031 co-relation queries the response was YES. [2021-03-12 00:09:38,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34751 conditions, 4030 events. 2099/4030 cut-off events. For 139016/139031 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 30518 event pairs, 277 based on Foata normal form. 27/4057 useless extension candidates. Maximal degree in co-relation 34597. Up to 1369 conditions per place. [2021-03-12 00:09:38,793 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 470 selfloop transitions, 139 changer transitions 4/620 dead transitions. [2021-03-12 00:09:38,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 620 transitions, 20294 flow [2021-03-12 00:09:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:09:38,794 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:09:38,794 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:09:38,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:09:38,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:38,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:09:38,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:38,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:38,794 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:38,794 INFO L185 Difference]: Start difference. First operand has 465 places, 562 transitions, 18019 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:09:38,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 620 transitions, 20294 flow [2021-03-12 00:09:39,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 620 transitions, 20018 flow, removed 52 selfloop flow, removed 3 redundant places. [2021-03-12 00:09:39,437 INFO L241 Difference]: Finished difference. Result has 472 places, 570 transitions, 18512 flow [2021-03-12 00:09:39,437 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=17677, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18512, PETRI_PLACES=472, PETRI_TRANSITIONS=570} [2021-03-12 00:09:39,437 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 449 predicate places. [2021-03-12 00:09:39,437 INFO L480 AbstractCegarLoop]: Abstraction has has 472 places, 570 transitions, 18512 flow [2021-03-12 00:09:39,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:39,438 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:39,438 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:39,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:39,638 INFO L428 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1750578342, now seen corresponding path program 10 times [2021-03-12 00:09:39,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:39,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366563635] [2021-03-12 00:09:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:39,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:39,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:39,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:39,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366563635] [2021-03-12 00:09:39,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870536495] [2021-03-12 00:09:39,669 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:39,692 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:09:39,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:39,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:39,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:39,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:39,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:39,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:39,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:39,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:39,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:39,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:39,741 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:39,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:39,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:39,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:39,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:39,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:39,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:39,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:39,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:39,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527701372] [2021-03-12 00:09:39,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:39,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:39,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:39,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:39,762 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:39,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 570 transitions, 18512 flow. Second operand has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:39,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:39,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:39,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:40,810 INFO L129 PetriNetUnfolder]: 2085/3979 cut-off events. [2021-03-12 00:09:40,810 INFO L130 PetriNetUnfolder]: For 140384/140399 co-relation queries the response was YES. [2021-03-12 00:09:40,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34809 conditions, 3979 events. 2085/3979 cut-off events. For 140384/140399 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 29815 event pairs, 325 based on Foata normal form. 13/3992 useless extension candidates. Maximal degree in co-relation 34651. Up to 1248 conditions per place. [2021-03-12 00:09:40,872 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 448 selfloop transitions, 151 changer transitions 0/606 dead transitions. [2021-03-12 00:09:40,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 606 transitions, 20193 flow [2021-03-12 00:09:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:40,873 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:40,873 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:40,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:40,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:40,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:40,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:40,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:40,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:40,873 INFO L185 Difference]: Start difference. First operand has 472 places, 570 transitions, 18512 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:40,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 606 transitions, 20193 flow [2021-03-12 00:09:41,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 606 transitions, 20045 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:41,438 INFO L241 Difference]: Finished difference. Result has 474 places, 572 transitions, 18723 flow [2021-03-12 00:09:41,438 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18307, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18723, PETRI_PLACES=474, PETRI_TRANSITIONS=572} [2021-03-12 00:09:41,438 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 451 predicate places. [2021-03-12 00:09:41,438 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 572 transitions, 18723 flow [2021-03-12 00:09:41,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:41,438 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:41,438 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:41,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable517 [2021-03-12 00:09:41,647 INFO L428 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:41,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:41,647 INFO L82 PathProgramCache]: Analyzing trace with hash 883383598, now seen corresponding path program 11 times [2021-03-12 00:09:41,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:41,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532016412] [2021-03-12 00:09:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:41,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:41,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:41,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:41,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:41,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532016412] [2021-03-12 00:09:41,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117672610] [2021-03-12 00:09:41,680 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:41,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:41,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:41,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:41,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:41,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:41,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:41,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:41,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:41,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:41,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:41,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:41,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:41,757 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:41,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:41,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:41,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:41,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:41,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:41,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:41,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:41,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:41,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002833338] [2021-03-12 00:09:41,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:41,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:41,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:41,762 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:41,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 572 transitions, 18723 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:41,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:41,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:41,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:42,934 INFO L129 PetriNetUnfolder]: 2223/4242 cut-off events. [2021-03-12 00:09:42,934 INFO L130 PetriNetUnfolder]: For 153211/153226 co-relation queries the response was YES. [2021-03-12 00:09:42,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37062 conditions, 4242 events. 2223/4242 cut-off events. For 153211/153226 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 32211 event pairs, 394 based on Foata normal form. 21/4263 useless extension candidates. Maximal degree in co-relation 36904. Up to 1767 conditions per place. [2021-03-12 00:09:42,991 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 476 selfloop transitions, 143 changer transitions 0/626 dead transitions. [2021-03-12 00:09:42,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 626 transitions, 21022 flow [2021-03-12 00:09:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:09:42,992 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:09:42,992 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:09:42,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:09:42,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:42,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:09:42,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:42,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:42,993 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:42,993 INFO L185 Difference]: Start difference. First operand has 474 places, 572 transitions, 18723 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:09:42,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 626 transitions, 21022 flow [2021-03-12 00:09:43,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 626 transitions, 20690 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-12 00:09:43,537 INFO L241 Difference]: Finished difference. Result has 478 places, 589 transitions, 19326 flow [2021-03-12 00:09:43,538 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=18401, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19326, PETRI_PLACES=478, PETRI_TRANSITIONS=589} [2021-03-12 00:09:43,538 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 455 predicate places. [2021-03-12 00:09:43,538 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 589 transitions, 19326 flow [2021-03-12 00:09:43,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:43,538 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:43,538 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:43,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:43,740 INFO L428 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash 255126137, now seen corresponding path program 8 times [2021-03-12 00:09:43,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:43,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102750406] [2021-03-12 00:09:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:43,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:43,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:43,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:43,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:43,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:43,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:43,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:43,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:43,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102750406] [2021-03-12 00:09:43,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:09:43,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:09:43,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050246018] [2021-03-12 00:09:43,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:09:43,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:43,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:09:43,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:09:43,772 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:43,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 589 transitions, 19326 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:43,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:43,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:43,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:44,912 INFO L129 PetriNetUnfolder]: 2239/4343 cut-off events. [2021-03-12 00:09:44,912 INFO L130 PetriNetUnfolder]: For 155220/155235 co-relation queries the response was YES. [2021-03-12 00:09:44,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38004 conditions, 4343 events. 2239/4343 cut-off events. For 155220/155235 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 33871 event pairs, 441 based on Foata normal form. 21/4364 useless extension candidates. Maximal degree in co-relation 37843. Up to 2847 conditions per place. [2021-03-12 00:09:44,981 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 457 selfloop transitions, 146 changer transitions 3/613 dead transitions. [2021-03-12 00:09:44,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 613 transitions, 20746 flow [2021-03-12 00:09:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:44,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:44,982 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:44,982 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:44,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:44,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:44,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:44,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:44,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:44,983 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:44,983 INFO L185 Difference]: Start difference. First operand has 478 places, 589 transitions, 19326 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:44,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 613 transitions, 20746 flow [2021-03-12 00:09:45,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 613 transitions, 20661 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-12 00:09:45,646 INFO L241 Difference]: Finished difference. Result has 485 places, 590 transitions, 19525 flow [2021-03-12 00:09:45,646 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19063, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19525, PETRI_PLACES=485, PETRI_TRANSITIONS=590} [2021-03-12 00:09:45,646 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 462 predicate places. [2021-03-12 00:09:45,646 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 590 transitions, 19525 flow [2021-03-12 00:09:45,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:45,646 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:45,646 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:45,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2021-03-12 00:09:45,647 INFO L428 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:45,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1398526632, now seen corresponding path program 12 times [2021-03-12 00:09:45,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:45,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088250012] [2021-03-12 00:09:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:45,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:45,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:45,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088250012] [2021-03-12 00:09:45,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675584917] [2021-03-12 00:09:45,679 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:45,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:09:45,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:45,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:45,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:45,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:45,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:45,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:45,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:45,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:45,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:45,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:45,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:45,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:45,743 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:45,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:45,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:45,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:45,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:45,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:45,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:45,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:45,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:09:45,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186137373] [2021-03-12 00:09:45,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:09:45,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:45,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:09:45,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:09:45,751 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:45,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 590 transitions, 19525 flow. Second operand has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:45,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:45,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:45,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:46,912 INFO L129 PetriNetUnfolder]: 2251/4307 cut-off events. [2021-03-12 00:09:46,913 INFO L130 PetriNetUnfolder]: For 161909/161924 co-relation queries the response was YES. [2021-03-12 00:09:46,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38923 conditions, 4307 events. 2251/4307 cut-off events. For 161909/161924 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 32906 event pairs, 299 based on Foata normal form. 17/4324 useless extension candidates. Maximal degree in co-relation 38759. Up to 1581 conditions per place. [2021-03-12 00:09:46,979 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 472 selfloop transitions, 159 changer transitions 0/638 dead transitions. [2021-03-12 00:09:46,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 638 transitions, 21578 flow [2021-03-12 00:09:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:09:46,980 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:09:46,980 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:09:46,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:09:46,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:46,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:09:46,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:46,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:46,980 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:46,981 INFO L185 Difference]: Start difference. First operand has 485 places, 590 transitions, 19525 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:09:46,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 638 transitions, 21578 flow [2021-03-12 00:09:47,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 638 transitions, 21248 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-12 00:09:47,645 INFO L241 Difference]: Finished difference. Result has 485 places, 595 transitions, 19698 flow [2021-03-12 00:09:47,645 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19103, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19698, PETRI_PLACES=485, PETRI_TRANSITIONS=595} [2021-03-12 00:09:47,645 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 462 predicate places. [2021-03-12 00:09:47,645 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 595 transitions, 19698 flow [2021-03-12 00:09:47,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:47,645 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:47,645 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:47,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-03-12 00:09:47,846 INFO L428 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:47,846 INFO L82 PathProgramCache]: Analyzing trace with hash -837382812, now seen corresponding path program 13 times [2021-03-12 00:09:47,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:47,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792110304] [2021-03-12 00:09:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:47,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:47,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:47,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:47,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792110304] [2021-03-12 00:09:47,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297146208] [2021-03-12 00:09:47,875 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:47,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:47,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:47,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:47,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,930 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:47,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:47,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:47,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:47,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,934 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:47,934 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,936 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:09:47,937 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:09:47,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:47,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:47,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:47,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:47,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:47,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:47,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:47,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552140772] [2021-03-12 00:09:47,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:47,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:47,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:47,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:47,957 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:47,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 595 transitions, 19698 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:47,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:47,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:47,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:49,105 INFO L129 PetriNetUnfolder]: 2255/4314 cut-off events. [2021-03-12 00:09:49,106 INFO L130 PetriNetUnfolder]: For 163386/163401 co-relation queries the response was YES. [2021-03-12 00:09:49,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39499 conditions, 4314 events. 2255/4314 cut-off events. For 163386/163401 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 32982 event pairs, 358 based on Foata normal form. 11/4325 useless extension candidates. Maximal degree in co-relation 39336. Up to 1825 conditions per place. [2021-03-12 00:09:49,177 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 491 selfloop transitions, 140 changer transitions 1/639 dead transitions. [2021-03-12 00:09:49,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 639 transitions, 21709 flow [2021-03-12 00:09:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:49,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:09:49,178 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:09:49,178 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:09:49,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:09:49,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:49,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:09:49,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:49,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:49,179 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:49,179 INFO L185 Difference]: Start difference. First operand has 485 places, 595 transitions, 19698 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:09:49,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 639 transitions, 21709 flow [2021-03-12 00:09:49,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 639 transitions, 21422 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:49,857 INFO L241 Difference]: Finished difference. Result has 490 places, 600 transitions, 19939 flow [2021-03-12 00:09:49,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19425, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=19939, PETRI_PLACES=490, PETRI_TRANSITIONS=600} [2021-03-12 00:09:49,858 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 467 predicate places. [2021-03-12 00:09:49,858 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 600 transitions, 19939 flow [2021-03-12 00:09:49,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:49,858 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:49,858 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:50,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable521 [2021-03-12 00:09:50,059 INFO L428 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:50,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1605099888, now seen corresponding path program 14 times [2021-03-12 00:09:50,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:50,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120975092] [2021-03-12 00:09:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:50,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:50,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:50,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120975092] [2021-03-12 00:09:50,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444188011] [2021-03-12 00:09:50,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:50,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:09:50,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:50,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:50,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:50,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:50,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:50,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:50,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:50,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:50,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:50,153 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:50,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:50,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:50,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:50,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:50,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:50,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:50,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:50,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:09:50,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018723474] [2021-03-12 00:09:50,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:09:50,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:50,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:09:50,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:09:50,159 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:50,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 600 transitions, 19939 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:50,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:50,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:50,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:51,422 INFO L129 PetriNetUnfolder]: 2521/4812 cut-off events. [2021-03-12 00:09:51,422 INFO L130 PetriNetUnfolder]: For 184530/184545 co-relation queries the response was YES. [2021-03-12 00:09:51,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43794 conditions, 4812 events. 2521/4812 cut-off events. For 184530/184545 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 37193 event pairs, 275 based on Foata normal form. 9/4821 useless extension candidates. Maximal degree in co-relation 43628. Up to 1260 conditions per place. [2021-03-12 00:09:51,503 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 473 selfloop transitions, 188 changer transitions 0/668 dead transitions. [2021-03-12 00:09:51,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 668 transitions, 22784 flow [2021-03-12 00:09:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:09:51,504 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:09:51,504 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:09:51,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:09:51,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:51,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:09:51,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:51,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:51,505 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:51,505 INFO L185 Difference]: Start difference. First operand has 490 places, 600 transitions, 19939 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:09:51,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 668 transitions, 22784 flow [2021-03-12 00:09:52,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 668 transitions, 22387 flow, removed 40 selfloop flow, removed 7 redundant places. [2021-03-12 00:09:52,301 INFO L241 Difference]: Finished difference. Result has 490 places, 617 transitions, 20858 flow [2021-03-12 00:09:52,301 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=19591, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20858, PETRI_PLACES=490, PETRI_TRANSITIONS=617} [2021-03-12 00:09:52,301 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 467 predicate places. [2021-03-12 00:09:52,301 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 617 transitions, 20858 flow [2021-03-12 00:09:52,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:52,301 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:52,301 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:52,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable524 [2021-03-12 00:09:52,502 INFO L428 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:52,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:52,502 INFO L82 PathProgramCache]: Analyzing trace with hash -554081490, now seen corresponding path program 15 times [2021-03-12 00:09:52,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:52,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135186237] [2021-03-12 00:09:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:52,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:52,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:52,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:52,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:52,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135186237] [2021-03-12 00:09:52,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654568067] [2021-03-12 00:09:52,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:52,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:09:52,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:52,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:52,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:52,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:52,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:52,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:52,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:52,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:52,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:52,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:52,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:52,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:52,620 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:52,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:52,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:52,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:52,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:52,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:52,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:52,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:52,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:09:52,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413425456] [2021-03-12 00:09:52,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:09:52,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:52,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:09:52,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:09:52,626 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:52,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 617 transitions, 20858 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:52,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:52,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:52,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:54,077 INFO L129 PetriNetUnfolder]: 2577/4900 cut-off events. [2021-03-12 00:09:54,078 INFO L130 PetriNetUnfolder]: For 195061/195076 co-relation queries the response was YES. [2021-03-12 00:09:54,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44704 conditions, 4900 events. 2577/4900 cut-off events. For 195061/195076 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 37802 event pairs, 451 based on Foata normal form. 9/4909 useless extension candidates. Maximal degree in co-relation 44537. Up to 2197 conditions per place. [2021-03-12 00:09:54,153 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 481 selfloop transitions, 178 changer transitions 0/666 dead transitions. [2021-03-12 00:09:54,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 666 transitions, 23261 flow [2021-03-12 00:09:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:09:54,154 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:09:54,154 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:09:54,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:09:54,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:54,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:09:54,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:54,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:54,155 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:54,155 INFO L185 Difference]: Start difference. First operand has 490 places, 617 transitions, 20858 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:09:54,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 666 transitions, 23261 flow [2021-03-12 00:09:54,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 666 transitions, 23094 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:54,898 INFO L241 Difference]: Finished difference. Result has 492 places, 635 transitions, 21753 flow [2021-03-12 00:09:54,898 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20668, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21753, PETRI_PLACES=492, PETRI_TRANSITIONS=635} [2021-03-12 00:09:54,898 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 469 predicate places. [2021-03-12 00:09:54,898 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 635 transitions, 21753 flow [2021-03-12 00:09:54,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:54,898 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:54,898 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:55,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:55,099 INFO L428 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash 236034751, now seen corresponding path program 9 times [2021-03-12 00:09:55,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:55,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270833697] [2021-03-12 00:09:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:55,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:55,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:55,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:55,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:55,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:55,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:55,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:55,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:55,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270833697] [2021-03-12 00:09:55,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:09:55,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:09:55,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681591784] [2021-03-12 00:09:55,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:09:55,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:55,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:09:55,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:09:55,131 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:55,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 635 transitions, 21753 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:55,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:55,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:55,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:56,500 INFO L129 PetriNetUnfolder]: 2583/4940 cut-off events. [2021-03-12 00:09:56,500 INFO L130 PetriNetUnfolder]: For 204436/204451 co-relation queries the response was YES. [2021-03-12 00:09:56,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45760 conditions, 4940 events. 2583/4940 cut-off events. For 204436/204451 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 38694 event pairs, 582 based on Foata normal form. 13/4953 useless extension candidates. Maximal degree in co-relation 45593. Up to 3367 conditions per place. [2021-03-12 00:09:56,584 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 508 selfloop transitions, 140 changer transitions 1/656 dead transitions. [2021-03-12 00:09:56,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 656 transitions, 23278 flow [2021-03-12 00:09:56,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:09:56,586 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:09:56,586 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:09:56,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:09:56,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:56,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:09:56,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:56,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:56,586 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:56,586 INFO L185 Difference]: Start difference. First operand has 492 places, 635 transitions, 21753 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:09:56,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 656 transitions, 23278 flow [2021-03-12 00:09:57,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 656 transitions, 22998 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:09:57,383 INFO L241 Difference]: Finished difference. Result has 496 places, 635 transitions, 21738 flow [2021-03-12 00:09:57,383 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21473, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21738, PETRI_PLACES=496, PETRI_TRANSITIONS=635} [2021-03-12 00:09:57,383 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 473 predicate places. [2021-03-12 00:09:57,383 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 635 transitions, 21738 flow [2021-03-12 00:09:57,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:57,383 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:57,383 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:57,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2021-03-12 00:09:57,384 INFO L428 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:57,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:57,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1579228344, now seen corresponding path program 16 times [2021-03-12 00:09:57,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:57,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935607535] [2021-03-12 00:09:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:57,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:57,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:57,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:57,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:57,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:57,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:57,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:57,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:57,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935607535] [2021-03-12 00:09:57,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:09:57,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:09:57,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759051431] [2021-03-12 00:09:57,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:09:57,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:57,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:09:57,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:09:57,413 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:57,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 635 transitions, 21738 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:57,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:57,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:57,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:09:58,793 INFO L129 PetriNetUnfolder]: 2566/4928 cut-off events. [2021-03-12 00:09:58,793 INFO L130 PetriNetUnfolder]: For 203352/203367 co-relation queries the response was YES. [2021-03-12 00:09:58,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45892 conditions, 4928 events. 2566/4928 cut-off events. For 203352/203367 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 38568 event pairs, 468 based on Foata normal form. 9/4937 useless extension candidates. Maximal degree in co-relation 45723. Up to 2216 conditions per place. [2021-03-12 00:09:58,878 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 489 selfloop transitions, 162 changer transitions 4/662 dead transitions. [2021-03-12 00:09:58,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 662 transitions, 23401 flow [2021-03-12 00:09:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:09:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:09:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:09:58,879 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:09:58,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:09:58,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:09:58,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:09:58,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:09:58,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:58,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:58,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:58,879 INFO L185 Difference]: Start difference. First operand has 496 places, 635 transitions, 21738 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:09:58,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 662 transitions, 23401 flow [2021-03-12 00:09:59,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 662 transitions, 23155 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-12 00:09:59,696 INFO L241 Difference]: Finished difference. Result has 499 places, 630 transitions, 21659 flow [2021-03-12 00:09:59,696 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21385, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21659, PETRI_PLACES=499, PETRI_TRANSITIONS=630} [2021-03-12 00:09:59,696 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 476 predicate places. [2021-03-12 00:09:59,696 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 630 transitions, 21659 flow [2021-03-12 00:09:59,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:59,697 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:09:59,697 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:09:59,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2021-03-12 00:09:59,697 INFO L428 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:09:59,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:09:59,697 INFO L82 PathProgramCache]: Analyzing trace with hash 417465357, now seen corresponding path program 10 times [2021-03-12 00:09:59,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:09:59,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390384826] [2021-03-12 00:09:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:09:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:09:59,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:59,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:09:59,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:09:59,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:59,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390384826] [2021-03-12 00:09:59,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852143249] [2021-03-12 00:09:59,732 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:09:59,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:09:59,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:09:59,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:09:59,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:09:59,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:09:59,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:59,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:59,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:59,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:59,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:09:59,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:09:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:59,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:59,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:59,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:59,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:09:59,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:59,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:09:59,822 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:09:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:09:59,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:09:59,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:09:59,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:09:59,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:09:59,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:09:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:09:59,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:09:59,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:09:59,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821446616] [2021-03-12 00:09:59,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:09:59,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:09:59,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:09:59,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:09:59,830 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:09:59,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 630 transitions, 21659 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:09:59,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:09:59,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:09:59,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:01,324 INFO L129 PetriNetUnfolder]: 2552/4873 cut-off events. [2021-03-12 00:10:01,325 INFO L130 PetriNetUnfolder]: For 205844/205859 co-relation queries the response was YES. [2021-03-12 00:10:01,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45556 conditions, 4873 events. 2552/4873 cut-off events. For 205844/205859 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 38022 event pairs, 551 based on Foata normal form. 13/4886 useless extension candidates. Maximal degree in co-relation 45387. Up to 3343 conditions per place. [2021-03-12 00:10:01,401 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 464 selfloop transitions, 178 changer transitions 1/650 dead transitions. [2021-03-12 00:10:01,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 650 transitions, 23183 flow [2021-03-12 00:10:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:10:01,402 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:10:01,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:10:01,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:10:01,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:01,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:10:01,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:01,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:01,402 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:01,403 INFO L185 Difference]: Start difference. First operand has 499 places, 630 transitions, 21659 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:10:01,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 650 transitions, 23183 flow [2021-03-12 00:10:02,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 650 transitions, 22833 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-03-12 00:10:02,159 INFO L241 Difference]: Finished difference. Result has 497 places, 630 transitions, 21697 flow [2021-03-12 00:10:02,159 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21263, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21697, PETRI_PLACES=497, PETRI_TRANSITIONS=630} [2021-03-12 00:10:02,159 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 474 predicate places. [2021-03-12 00:10:02,159 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 630 transitions, 21697 flow [2021-03-12 00:10:02,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:02,159 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:02,159 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:02,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable528 [2021-03-12 00:10:02,360 INFO L428 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:02,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2077980316, now seen corresponding path program 17 times [2021-03-12 00:10:02,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:02,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218326669] [2021-03-12 00:10:02,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:02,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:02,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:02,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:02,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:02,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:02,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:02,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:02,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218326669] [2021-03-12 00:10:02,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:02,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:02,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312242018] [2021-03-12 00:10:02,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:02,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:02,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:02,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:02,398 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:02,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 630 transitions, 21697 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:02,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:02,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:02,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:03,722 INFO L129 PetriNetUnfolder]: 2540/4828 cut-off events. [2021-03-12 00:10:03,722 INFO L130 PetriNetUnfolder]: For 202351/202366 co-relation queries the response was YES. [2021-03-12 00:10:03,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45250 conditions, 4828 events. 2540/4828 cut-off events. For 202351/202366 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 37246 event pairs, 474 based on Foata normal form. 9/4837 useless extension candidates. Maximal degree in co-relation 45081. Up to 2192 conditions per place. [2021-03-12 00:10:03,804 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 507 selfloop transitions, 144 changer transitions 1/659 dead transitions. [2021-03-12 00:10:03,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 659 transitions, 23424 flow [2021-03-12 00:10:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:10:03,805 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:10:03,805 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:10:03,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:10:03,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:03,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:10:03,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:03,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:03,806 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:03,806 INFO L185 Difference]: Start difference. First operand has 497 places, 630 transitions, 21697 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:10:03,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 659 transitions, 23424 flow [2021-03-12 00:10:04,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 659 transitions, 23159 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-12 00:10:04,608 INFO L241 Difference]: Finished difference. Result has 500 places, 628 transitions, 21644 flow [2021-03-12 00:10:04,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21395, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21644, PETRI_PLACES=500, PETRI_TRANSITIONS=628} [2021-03-12 00:10:04,608 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 477 predicate places. [2021-03-12 00:10:04,609 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 628 transitions, 21644 flow [2021-03-12 00:10:04,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:04,609 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:04,609 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:04,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2021-03-12 00:10:04,609 INFO L428 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:04,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:04,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1735017785, now seen corresponding path program 11 times [2021-03-12 00:10:04,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:04,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393981493] [2021-03-12 00:10:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:04,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:04,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:04,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:04,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393981493] [2021-03-12 00:10:04,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118114298] [2021-03-12 00:10:04,642 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:04,662 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:10:04,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:04,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:04,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:04,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:04,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:04,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:04,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:04,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:04,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:04,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,714 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:04,714 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,716 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:04,716 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,717 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:10:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:04,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:04,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:04,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:04,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:04,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:04,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:10:04,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447572930] [2021-03-12 00:10:04,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:10:04,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:04,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:10:04,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:10:04,736 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:04,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 628 transitions, 21644 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:04,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:04,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:04,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:06,159 INFO L129 PetriNetUnfolder]: 2531/4825 cut-off events. [2021-03-12 00:10:06,160 INFO L130 PetriNetUnfolder]: For 206142/206147 co-relation queries the response was YES. [2021-03-12 00:10:06,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45160 conditions, 4825 events. 2531/4825 cut-off events. For 206142/206147 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 37449 event pairs, 566 based on Foata normal form. 6/4831 useless extension candidates. Maximal degree in co-relation 44990. Up to 3320 conditions per place. [2021-03-12 00:10:06,239 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 465 selfloop transitions, 169 changer transitions 5/646 dead transitions. [2021-03-12 00:10:06,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 646 transitions, 23024 flow [2021-03-12 00:10:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:10:06,241 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:10:06,241 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:10:06,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:10:06,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:06,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:10:06,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:06,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:06,241 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:06,242 INFO L185 Difference]: Start difference. First operand has 500 places, 628 transitions, 21644 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:10:06,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 646 transitions, 23024 flow [2021-03-12 00:10:07,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 646 transitions, 22823 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:10:07,026 INFO L241 Difference]: Finished difference. Result has 502 places, 624 transitions, 21598 flow [2021-03-12 00:10:07,026 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21325, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21598, PETRI_PLACES=502, PETRI_TRANSITIONS=624} [2021-03-12 00:10:07,026 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:10:07,027 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 624 transitions, 21598 flow [2021-03-12 00:10:07,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:07,027 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:07,027 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:07,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:07,227 INFO L428 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash -571092482, now seen corresponding path program 18 times [2021-03-12 00:10:07,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:07,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340283256] [2021-03-12 00:10:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:07,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:07,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:07,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:07,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:07,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:07,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:07,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340283256] [2021-03-12 00:10:07,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:07,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:07,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444837774] [2021-03-12 00:10:07,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:07,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:07,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:07,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:07,256 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:07,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 624 transitions, 21598 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:07,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:07,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:07,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:08,554 INFO L129 PetriNetUnfolder]: 2525/4808 cut-off events. [2021-03-12 00:10:08,554 INFO L130 PetriNetUnfolder]: For 203823/203828 co-relation queries the response was YES. [2021-03-12 00:10:08,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44959 conditions, 4808 events. 2525/4808 cut-off events. For 203823/203828 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 37079 event pairs, 497 based on Foata normal form. 4/4812 useless extension candidates. Maximal degree in co-relation 44789. Up to 2176 conditions per place. [2021-03-12 00:10:08,635 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 499 selfloop transitions, 140 changer transitions 4/650 dead transitions. [2021-03-12 00:10:08,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 650 transitions, 23276 flow [2021-03-12 00:10:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:08,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2021-03-12 00:10:08,637 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7591836734693878 [2021-03-12 00:10:08,637 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 186 transitions. [2021-03-12 00:10:08,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 186 transitions. [2021-03-12 00:10:08,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:08,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 186 transitions. [2021-03-12 00:10:08,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:08,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:08,637 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:08,638 INFO L185 Difference]: Start difference. First operand has 502 places, 624 transitions, 21598 flow. Second operand 7 states and 186 transitions. [2021-03-12 00:10:08,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 650 transitions, 23276 flow [2021-03-12 00:10:09,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 650 transitions, 22781 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-12 00:10:09,459 INFO L241 Difference]: Finished difference. Result has 495 places, 621 transitions, 21251 flow [2021-03-12 00:10:09,459 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21055, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21251, PETRI_PLACES=495, PETRI_TRANSITIONS=621} [2021-03-12 00:10:09,459 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 472 predicate places. [2021-03-12 00:10:09,459 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 621 transitions, 21251 flow [2021-03-12 00:10:09,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:09,459 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:09,459 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:09,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-12 00:10:09,459 INFO L428 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:09,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:09,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1050958681, now seen corresponding path program 12 times [2021-03-12 00:10:09,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:09,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457887715] [2021-03-12 00:10:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:09,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:09,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:09,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:09,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:09,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457887715] [2021-03-12 00:10:09,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120616626] [2021-03-12 00:10:09,498 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:09,530 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:10:09,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:09,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:09,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:09,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:09,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:09,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:09,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:09,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:09,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:09,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:09,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:09,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:09,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:09,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:09,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:09,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:09,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:09,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:09,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:09,595 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:09,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:09,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:09,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:09,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:09,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:09,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:09,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:09,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:10:09,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283659464] [2021-03-12 00:10:09,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:10:09,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:09,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:10:09,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:10:09,602 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:09,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 621 transitions, 21251 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:09,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:09,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:09,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:10,929 INFO L129 PetriNetUnfolder]: 2564/4855 cut-off events. [2021-03-12 00:10:10,929 INFO L130 PetriNetUnfolder]: For 207372/207387 co-relation queries the response was YES. [2021-03-12 00:10:10,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45463 conditions, 4855 events. 2564/4855 cut-off events. For 207372/207387 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 37451 event pairs, 592 based on Foata normal form. 9/4864 useless extension candidates. Maximal degree in co-relation 45295. Up to 3328 conditions per place. [2021-03-12 00:10:11,011 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 486 selfloop transitions, 153 changer transitions 1/647 dead transitions. [2021-03-12 00:10:11,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 647 transitions, 22904 flow [2021-03-12 00:10:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:11,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:10:11,012 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:10:11,012 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:10:11,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:10:11,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:11,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:10:11,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:11,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:11,012 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:11,013 INFO L185 Difference]: Start difference. First operand has 495 places, 621 transitions, 21251 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:10:11,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 647 transitions, 22904 flow [2021-03-12 00:10:11,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 647 transitions, 22669 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-03-12 00:10:11,813 INFO L241 Difference]: Finished difference. Result has 491 places, 626 transitions, 21507 flow [2021-03-12 00:10:11,813 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21016, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21507, PETRI_PLACES=491, PETRI_TRANSITIONS=626} [2021-03-12 00:10:11,813 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 468 predicate places. [2021-03-12 00:10:11,813 INFO L480 AbstractCegarLoop]: Abstraction has has 491 places, 626 transitions, 21507 flow [2021-03-12 00:10:11,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:11,814 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:11,814 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:12,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable534 [2021-03-12 00:10:12,014 INFO L428 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -110460633, now seen corresponding path program 13 times [2021-03-12 00:10:12,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:12,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461822415] [2021-03-12 00:10:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:12,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:12,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461822415] [2021-03-12 00:10:12,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531777508] [2021-03-12 00:10:12,055 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:12,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:12,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,120 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:12,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:12,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:12,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:12,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,122 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:12,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,124 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:12,125 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,125 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:10:12,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:12,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:12,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:12,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:12,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:12,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:12,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:10:12,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737956136] [2021-03-12 00:10:12,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:10:12,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:12,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:10:12,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:10:12,147 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:12,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 626 transitions, 21507 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:12,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:12,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:12,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:13,462 INFO L129 PetriNetUnfolder]: 2553/4819 cut-off events. [2021-03-12 00:10:13,462 INFO L130 PetriNetUnfolder]: For 206353/206368 co-relation queries the response was YES. [2021-03-12 00:10:13,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45747 conditions, 4819 events. 2553/4819 cut-off events. For 206353/206368 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 37025 event pairs, 570 based on Foata normal form. 9/4828 useless extension candidates. Maximal degree in co-relation 45580. Up to 3328 conditions per place. [2021-03-12 00:10:13,550 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 486 selfloop transitions, 147 changer transitions 1/641 dead transitions. [2021-03-12 00:10:13,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 641 transitions, 22918 flow [2021-03-12 00:10:13,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:10:13,551 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:10:13,551 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:10:13,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:10:13,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:13,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:10:13,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:13,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:13,552 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:13,552 INFO L185 Difference]: Start difference. First operand has 491 places, 626 transitions, 21507 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:10:13,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 641 transitions, 22918 flow [2021-03-12 00:10:14,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 641 transitions, 22643 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-12 00:10:14,359 INFO L241 Difference]: Finished difference. Result has 492 places, 623 transitions, 21454 flow [2021-03-12 00:10:14,359 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21183, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21454, PETRI_PLACES=492, PETRI_TRANSITIONS=623} [2021-03-12 00:10:14,359 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 469 predicate places. [2021-03-12 00:10:14,359 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 623 transitions, 21454 flow [2021-03-12 00:10:14,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:14,359 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:14,359 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:14,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable535 [2021-03-12 00:10:14,560 INFO L428 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:14,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1751705163, now seen corresponding path program 14 times [2021-03-12 00:10:14,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:14,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428687975] [2021-03-12 00:10:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:14,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:14,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:14,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:14,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:14,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428687975] [2021-03-12 00:10:14,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457183620] [2021-03-12 00:10:14,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:14,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:10:14,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:14,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:14,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:14,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:14,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:14,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:14,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:14,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:14,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:14,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:14,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:14,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:14,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:14,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:14,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:14,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:14,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:14,697 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:14,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:14,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:14,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:14,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:14,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:14,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:14,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:14,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:10:14,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854820079] [2021-03-12 00:10:14,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:10:14,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:14,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:10:14,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:10:14,704 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:14,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 623 transitions, 21454 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:14,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:14,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:14,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:16,071 INFO L129 PetriNetUnfolder]: 2588/4930 cut-off events. [2021-03-12 00:10:16,071 INFO L130 PetriNetUnfolder]: For 206862/206877 co-relation queries the response was YES. [2021-03-12 00:10:16,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46338 conditions, 4930 events. 2588/4930 cut-off events. For 206862/206877 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 38457 event pairs, 539 based on Foata normal form. 9/4939 useless extension candidates. Maximal degree in co-relation 46171. Up to 3344 conditions per place. [2021-03-12 00:10:16,157 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 483 selfloop transitions, 155 changer transitions 0/645 dead transitions. [2021-03-12 00:10:16,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 645 transitions, 23069 flow [2021-03-12 00:10:16,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:16,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:10:16,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:10:16,158 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:10:16,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:10:16,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:16,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:10:16,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:16,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:16,159 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:16,159 INFO L185 Difference]: Start difference. First operand has 492 places, 623 transitions, 21454 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:10:16,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 645 transitions, 23069 flow [2021-03-12 00:10:16,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 645 transitions, 22600 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-12 00:10:16,971 INFO L241 Difference]: Finished difference. Result has 486 places, 627 transitions, 21464 flow [2021-03-12 00:10:16,972 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20974, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21464, PETRI_PLACES=486, PETRI_TRANSITIONS=627} [2021-03-12 00:10:16,972 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 463 predicate places. [2021-03-12 00:10:16,972 INFO L480 AbstractCegarLoop]: Abstraction has has 486 places, 627 transitions, 21464 flow [2021-03-12 00:10:16,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:16,972 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:16,972 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:17,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable538 [2021-03-12 00:10:17,173 INFO L428 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:17,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash -313383419, now seen corresponding path program 15 times [2021-03-12 00:10:17,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:17,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334183395] [2021-03-12 00:10:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:17,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:17,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:17,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:17,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:17,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:17,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:17,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:17,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:17,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334183395] [2021-03-12 00:10:17,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:17,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:17,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502354762] [2021-03-12 00:10:17,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:17,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:17,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:17,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:17,205 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:17,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 627 transitions, 21464 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:17,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:17,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:17,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:18,551 INFO L129 PetriNetUnfolder]: 2584/4922 cut-off events. [2021-03-12 00:10:18,551 INFO L130 PetriNetUnfolder]: For 204400/204405 co-relation queries the response was YES. [2021-03-12 00:10:18,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46308 conditions, 4922 events. 2584/4922 cut-off events. For 204400/204405 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 38291 event pairs, 589 based on Foata normal form. 4/4926 useless extension candidates. Maximal degree in co-relation 46145. Up to 3344 conditions per place. [2021-03-12 00:10:18,634 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 493 selfloop transitions, 137 changer transitions 4/641 dead transitions. [2021-03-12 00:10:18,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 641 transitions, 22869 flow [2021-03-12 00:10:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2021-03-12 00:10:18,635 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7591836734693878 [2021-03-12 00:10:18,635 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 186 transitions. [2021-03-12 00:10:18,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 186 transitions. [2021-03-12 00:10:18,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:18,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 186 transitions. [2021-03-12 00:10:18,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:18,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:18,636 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:18,636 INFO L185 Difference]: Start difference. First operand has 486 places, 627 transitions, 21464 flow. Second operand 7 states and 186 transitions. [2021-03-12 00:10:18,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 641 transitions, 22869 flow [2021-03-12 00:10:19,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 641 transitions, 22506 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-12 00:10:19,521 INFO L241 Difference]: Finished difference. Result has 484 places, 624 transitions, 21259 flow [2021-03-12 00:10:19,521 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21062, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21259, PETRI_PLACES=484, PETRI_TRANSITIONS=624} [2021-03-12 00:10:19,521 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 461 predicate places. [2021-03-12 00:10:19,522 INFO L480 AbstractCegarLoop]: Abstraction has has 484 places, 624 transitions, 21259 flow [2021-03-12 00:10:19,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:19,522 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:19,522 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:19,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-12 00:10:19,522 INFO L428 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:19,522 INFO L82 PathProgramCache]: Analyzing trace with hash 2063047093, now seen corresponding path program 16 times [2021-03-12 00:10:19,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:19,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994306351] [2021-03-12 00:10:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:19,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:19,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:19,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:19,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:19,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:19,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:19,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:19,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994306351] [2021-03-12 00:10:19,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:19,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:19,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218384325] [2021-03-12 00:10:19,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:19,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:19,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:19,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:19,550 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:19,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 624 transitions, 21259 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:19,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:19,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:19,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:20,879 INFO L129 PetriNetUnfolder]: 2563/4829 cut-off events. [2021-03-12 00:10:20,879 INFO L130 PetriNetUnfolder]: For 200385/200400 co-relation queries the response was YES. [2021-03-12 00:10:20,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45346 conditions, 4829 events. 2563/4829 cut-off events. For 200385/200400 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 37037 event pairs, 599 based on Foata normal form. 9/4838 useless extension candidates. Maximal degree in co-relation 45184. Up to 3344 conditions per place. [2021-03-12 00:10:20,962 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 474 selfloop transitions, 157 changer transitions 5/643 dead transitions. [2021-03-12 00:10:20,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 643 transitions, 22638 flow [2021-03-12 00:10:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:10:20,963 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:10:20,964 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:10:20,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:10:20,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:20,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:10:20,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:20,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:20,964 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:20,964 INFO L185 Difference]: Start difference. First operand has 484 places, 624 transitions, 21259 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:10:20,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 643 transitions, 22638 flow [2021-03-12 00:10:21,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 643 transitions, 22330 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:10:21,743 INFO L241 Difference]: Finished difference. Result has 481 places, 619 transitions, 21010 flow [2021-03-12 00:10:21,743 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20828, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21010, PETRI_PLACES=481, PETRI_TRANSITIONS=619} [2021-03-12 00:10:21,743 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 458 predicate places. [2021-03-12 00:10:21,743 INFO L480 AbstractCegarLoop]: Abstraction has has 481 places, 619 transitions, 21010 flow [2021-03-12 00:10:21,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:21,744 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:21,744 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:21,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-12 00:10:21,744 INFO L428 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:21,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:21,744 INFO L82 PathProgramCache]: Analyzing trace with hash -781909333, now seen corresponding path program 17 times [2021-03-12 00:10:21,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:21,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755217566] [2021-03-12 00:10:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:21,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:21,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:21,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:21,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:21,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:21,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:21,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:21,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:21,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755217566] [2021-03-12 00:10:21,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:21,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:21,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023450035] [2021-03-12 00:10:21,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:21,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:21,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:21,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:21,774 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:21,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 619 transitions, 21010 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:21,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:21,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:21,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:23,095 INFO L129 PetriNetUnfolder]: 2548/4788 cut-off events. [2021-03-12 00:10:23,096 INFO L130 PetriNetUnfolder]: For 199384/199399 co-relation queries the response was YES. [2021-03-12 00:10:23,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45062 conditions, 4788 events. 2548/4788 cut-off events. For 199384/199399 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 36600 event pairs, 597 based on Foata normal form. 9/4797 useless extension candidates. Maximal degree in co-relation 44900. Up to 3344 conditions per place. [2021-03-12 00:10:23,306 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 484 selfloop transitions, 145 changer transitions 1/637 dead transitions. [2021-03-12 00:10:23,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 637 transitions, 22445 flow [2021-03-12 00:10:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:10:23,307 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:10:23,307 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:10:23,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:10:23,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:23,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:10:23,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:23,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:23,308 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:23,308 INFO L185 Difference]: Start difference. First operand has 481 places, 619 transitions, 21010 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:10:23,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 637 transitions, 22445 flow [2021-03-12 00:10:23,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 637 transitions, 22090 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-12 00:10:23,965 INFO L241 Difference]: Finished difference. Result has 475 places, 617 transitions, 20864 flow [2021-03-12 00:10:23,966 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20622, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20864, PETRI_PLACES=475, PETRI_TRANSITIONS=617} [2021-03-12 00:10:23,966 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 452 predicate places. [2021-03-12 00:10:23,966 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 617 transitions, 20864 flow [2021-03-12 00:10:23,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:23,966 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:23,966 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:23,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2021-03-12 00:10:23,966 INFO L428 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:23,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1630432149, now seen corresponding path program 18 times [2021-03-12 00:10:23,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:23,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954384301] [2021-03-12 00:10:23,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:23,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:23,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:23,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:23,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:23,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:23,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:23,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:23,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:23,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954384301] [2021-03-12 00:10:23,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:23,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:23,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267997557] [2021-03-12 00:10:23,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:23,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:23,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:23,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:23,997 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:23,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 617 transitions, 20864 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:23,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:23,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:23,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:25,301 INFO L129 PetriNetUnfolder]: 2543/4777 cut-off events. [2021-03-12 00:10:25,301 INFO L130 PetriNetUnfolder]: For 198582/198597 co-relation queries the response was YES. [2021-03-12 00:10:25,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44893 conditions, 4777 events. 2543/4777 cut-off events. For 198582/198597 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 36516 event pairs, 594 based on Foata normal form. 7/4784 useless extension candidates. Maximal degree in co-relation 44733. Up to 3344 conditions per place. [2021-03-12 00:10:25,381 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 478 selfloop transitions, 143 changer transitions 4/632 dead transitions. [2021-03-12 00:10:25,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 632 transitions, 22253 flow [2021-03-12 00:10:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:25,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2021-03-12 00:10:25,382 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2021-03-12 00:10:25,382 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 185 transitions. [2021-03-12 00:10:25,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 185 transitions. [2021-03-12 00:10:25,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:25,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 185 transitions. [2021-03-12 00:10:25,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:25,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:25,383 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:25,383 INFO L185 Difference]: Start difference. First operand has 475 places, 617 transitions, 20864 flow. Second operand 7 states and 185 transitions. [2021-03-12 00:10:25,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 632 transitions, 22253 flow [2021-03-12 00:10:26,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 632 transitions, 21958 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:10:26,136 INFO L241 Difference]: Finished difference. Result has 475 places, 614 transitions, 20695 flow [2021-03-12 00:10:26,136 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20522, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20695, PETRI_PLACES=475, PETRI_TRANSITIONS=614} [2021-03-12 00:10:26,136 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 452 predicate places. [2021-03-12 00:10:26,137 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 614 transitions, 20695 flow [2021-03-12 00:10:26,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:26,137 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:26,137 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:26,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2021-03-12 00:10:26,137 INFO L428 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1578967947, now seen corresponding path program 19 times [2021-03-12 00:10:26,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:26,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139610973] [2021-03-12 00:10:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:26,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:26,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:26,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:26,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139610973] [2021-03-12 00:10:26,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726352154] [2021-03-12 00:10:26,169 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:26,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:26,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:26,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:26,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:26,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:26,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:26,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:26,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:26,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:26,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:26,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:26,233 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:26,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:26,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:26,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:26,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:26,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:26,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:26,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:10:26,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050510798] [2021-03-12 00:10:26,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:10:26,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:26,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:10:26,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:10:26,241 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:26,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 614 transitions, 20695 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:26,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:26,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:26,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:27,830 INFO L129 PetriNetUnfolder]: 3006/5654 cut-off events. [2021-03-12 00:10:27,830 INFO L130 PetriNetUnfolder]: For 213158/213173 co-relation queries the response was YES. [2021-03-12 00:10:27,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50532 conditions, 5654 events. 3006/5654 cut-off events. For 213158/213173 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 44092 event pairs, 475 based on Foata normal form. 13/5667 useless extension candidates. Maximal degree in co-relation 50373. Up to 2097 conditions per place. [2021-03-12 00:10:27,918 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 523 selfloop transitions, 152 changer transitions 0/682 dead transitions. [2021-03-12 00:10:27,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 682 transitions, 23421 flow [2021-03-12 00:10:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:27,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:10:27,919 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:10:27,920 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:10:27,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:10:27,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:27,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:10:27,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:27,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:27,920 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:27,920 INFO L185 Difference]: Start difference. First operand has 475 places, 614 transitions, 20695 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:10:27,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 682 transitions, 23421 flow [2021-03-12 00:10:28,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 682 transitions, 23083 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-12 00:10:28,714 INFO L241 Difference]: Finished difference. Result has 476 places, 632 transitions, 21498 flow [2021-03-12 00:10:28,714 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=20403, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21498, PETRI_PLACES=476, PETRI_TRANSITIONS=632} [2021-03-12 00:10:28,714 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 453 predicate places. [2021-03-12 00:10:28,714 INFO L480 AbstractCegarLoop]: Abstraction has has 476 places, 632 transitions, 21498 flow [2021-03-12 00:10:28,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:28,715 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:28,715 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:28,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable543 [2021-03-12 00:10:28,915 INFO L428 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:28,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1123378170, now seen corresponding path program 19 times [2021-03-12 00:10:28,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:28,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159802572] [2021-03-12 00:10:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:28,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:28,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:28,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159802572] [2021-03-12 00:10:28,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735791598] [2021-03-12 00:10:28,948 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:28,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:28,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:28,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:28,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:28,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:28,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:28,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:28,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:29,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:29,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:29,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:29,013 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:29,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:29,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:29,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:29,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,016 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:29,016 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,018 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:29,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:10:29,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:29,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:29,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:29,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:29,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:29,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:10:29,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687331626] [2021-03-12 00:10:29,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:10:29,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:29,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:10:29,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:10:29,040 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:29,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 632 transitions, 21498 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:29,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:29,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:29,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:30,566 INFO L129 PetriNetUnfolder]: 3000/5683 cut-off events. [2021-03-12 00:10:30,566 INFO L130 PetriNetUnfolder]: For 222851/222866 co-relation queries the response was YES. [2021-03-12 00:10:30,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51721 conditions, 5683 events. 3000/5683 cut-off events. For 222851/222866 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 44924 event pairs, 654 based on Foata normal form. 21/5704 useless extension candidates. Maximal degree in co-relation 51559. Up to 3410 conditions per place. [2021-03-12 00:10:30,670 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 447 selfloop transitions, 203 changer transitions 1/658 dead transitions. [2021-03-12 00:10:30,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 658 transitions, 23183 flow [2021-03-12 00:10:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:10:30,671 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:10:30,671 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:10:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:10:30,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:30,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:10:30,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:30,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:30,671 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:30,671 INFO L185 Difference]: Start difference. First operand has 476 places, 632 transitions, 21498 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:10:30,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 658 transitions, 23183 flow [2021-03-12 00:10:31,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 658 transitions, 22945 flow, removed 21 selfloop flow, removed 2 redundant places. [2021-03-12 00:10:31,586 INFO L241 Difference]: Finished difference. Result has 482 places, 635 transitions, 21805 flow [2021-03-12 00:10:31,586 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21268, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21805, PETRI_PLACES=482, PETRI_TRANSITIONS=635} [2021-03-12 00:10:31,586 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 459 predicate places. [2021-03-12 00:10:31,586 INFO L480 AbstractCegarLoop]: Abstraction has has 482 places, 635 transitions, 21805 flow [2021-03-12 00:10:31,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:31,587 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:31,587 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:31,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable544 [2021-03-12 00:10:31,787 INFO L428 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:31,787 INFO L82 PathProgramCache]: Analyzing trace with hash -694349437, now seen corresponding path program 20 times [2021-03-12 00:10:31,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:31,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354722094] [2021-03-12 00:10:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:31,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:31,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:31,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354722094] [2021-03-12 00:10:31,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925241351] [2021-03-12 00:10:31,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:31,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:10:31,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:31,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:31,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:31,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,869 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:31,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:31,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:31,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:31,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,872 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:31,872 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,873 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:31,874 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:10:31,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:31,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:31,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:31,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:31,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:31,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:31,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:31,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:10:31,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039872241] [2021-03-12 00:10:31,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:10:31,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:31,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:10:31,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:10:31,895 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:31,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 635 transitions, 21805 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:31,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:31,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:31,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:33,381 INFO L129 PetriNetUnfolder]: 3026/5624 cut-off events. [2021-03-12 00:10:33,382 INFO L130 PetriNetUnfolder]: For 227499/227514 co-relation queries the response was YES. [2021-03-12 00:10:33,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51750 conditions, 5624 events. 3026/5624 cut-off events. For 227499/227514 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 43374 event pairs, 491 based on Foata normal form. 17/5641 useless extension candidates. Maximal degree in co-relation 51586. Up to 1650 conditions per place. [2021-03-12 00:10:33,473 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 489 selfloop transitions, 191 changer transitions 1/688 dead transitions. [2021-03-12 00:10:33,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 688 transitions, 24155 flow [2021-03-12 00:10:33,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:10:33,474 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:10:33,474 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:10:33,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:10:33,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:33,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:10:33,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:33,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:33,475 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:33,475 INFO L185 Difference]: Start difference. First operand has 482 places, 635 transitions, 21805 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:10:33,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 688 transitions, 24155 flow [2021-03-12 00:10:34,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 688 transitions, 23563 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-12 00:10:34,355 INFO L241 Difference]: Finished difference. Result has 485 places, 642 transitions, 21871 flow [2021-03-12 00:10:34,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21213, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=21871, PETRI_PLACES=485, PETRI_TRANSITIONS=642} [2021-03-12 00:10:34,356 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 462 predicate places. [2021-03-12 00:10:34,356 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 642 transitions, 21871 flow [2021-03-12 00:10:34,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:34,356 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:34,356 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:34,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable547 [2021-03-12 00:10:34,556 INFO L428 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:34,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:34,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1030361173, now seen corresponding path program 21 times [2021-03-12 00:10:34,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:34,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870629531] [2021-03-12 00:10:34,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:34,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:34,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:34,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870629531] [2021-03-12 00:10:34,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519726976] [2021-03-12 00:10:34,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:34,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:10:34,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:34,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:34,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:34,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:34,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:34,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:34,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:34,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:34,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:34,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:34,646 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:34,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:34,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:34,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:34,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:34,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:34,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:34,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:34,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:10:34,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427972447] [2021-03-12 00:10:34,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:10:34,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:34,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:10:34,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:10:34,654 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:34,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 642 transitions, 21871 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:34,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:34,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:34,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:36,528 INFO L129 PetriNetUnfolder]: 3478/6485 cut-off events. [2021-03-12 00:10:36,528 INFO L130 PetriNetUnfolder]: For 241925/241940 co-relation queries the response was YES. [2021-03-12 00:10:36,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57397 conditions, 6485 events. 3478/6485 cut-off events. For 241925/241940 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 51394 event pairs, 513 based on Foata normal form. 13/6498 useless extension candidates. Maximal degree in co-relation 57231. Up to 1709 conditions per place. [2021-03-12 00:10:36,622 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 502 selfloop transitions, 205 changer transitions 0/714 dead transitions. [2021-03-12 00:10:36,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 714 transitions, 24819 flow [2021-03-12 00:10:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:10:36,623 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:10:36,623 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:10:36,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:10:36,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:36,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:10:36,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:36,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:36,623 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:36,623 INFO L185 Difference]: Start difference. First operand has 485 places, 642 transitions, 21871 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:10:36,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 714 transitions, 24819 flow [2021-03-12 00:10:37,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 714 transitions, 24482 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-03-12 00:10:37,546 INFO L241 Difference]: Finished difference. Result has 490 places, 656 transitions, 22716 flow [2021-03-12 00:10:37,546 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=21558, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22716, PETRI_PLACES=490, PETRI_TRANSITIONS=656} [2021-03-12 00:10:37,546 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 467 predicate places. [2021-03-12 00:10:37,546 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 656 transitions, 22716 flow [2021-03-12 00:10:37,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:37,547 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:37,547 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:37,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550,130 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:37,751 INFO L428 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:37,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1091048673, now seen corresponding path program 22 times [2021-03-12 00:10:37,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:37,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23142731] [2021-03-12 00:10:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:37,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:37,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:37,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:37,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23142731] [2021-03-12 00:10:37,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056922716] [2021-03-12 00:10:37,782 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:37,803 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:10:37,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:37,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:37,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:37,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:37,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:37,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:37,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:37,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:37,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:37,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:37,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:37,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:37,851 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:37,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:37,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:37,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:37,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:37,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:37,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:37,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:37,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:10:37,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526030424] [2021-03-12 00:10:37,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:10:37,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:37,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:10:37,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:10:37,857 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:37,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 656 transitions, 22716 flow. Second operand has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:37,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:37,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:37,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:39,623 INFO L129 PetriNetUnfolder]: 3458/6440 cut-off events. [2021-03-12 00:10:39,623 INFO L130 PetriNetUnfolder]: For 248847/248862 co-relation queries the response was YES. [2021-03-12 00:10:39,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58396 conditions, 6440 events. 3458/6440 cut-off events. For 248847/248862 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 50900 event pairs, 621 based on Foata normal form. 17/6457 useless extension candidates. Maximal degree in co-relation 58228. Up to 2254 conditions per place. [2021-03-12 00:10:39,732 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 495 selfloop transitions, 201 changer transitions 0/703 dead transitions. [2021-03-12 00:10:39,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 703 transitions, 24878 flow [2021-03-12 00:10:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:10:39,733 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:10:39,733 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:10:39,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:10:39,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:39,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:10:39,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:39,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:39,734 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:39,734 INFO L185 Difference]: Start difference. First operand has 490 places, 656 transitions, 22716 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:10:39,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 703 transitions, 24878 flow [2021-03-12 00:10:40,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 703 transitions, 24697 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-12 00:10:40,867 INFO L241 Difference]: Finished difference. Result has 494 places, 657 transitions, 23011 flow [2021-03-12 00:10:40,867 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22491, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23011, PETRI_PLACES=494, PETRI_TRANSITIONS=657} [2021-03-12 00:10:40,868 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 471 predicate places. [2021-03-12 00:10:40,868 INFO L480 AbstractCegarLoop]: Abstraction has has 494 places, 657 transitions, 23011 flow [2021-03-12 00:10:40,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:40,868 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:40,868 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:41,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551,131 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:41,068 INFO L428 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:41,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:41,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1273179172, now seen corresponding path program 20 times [2021-03-12 00:10:41,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:41,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761685909] [2021-03-12 00:10:41,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:41,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:41,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:41,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:41,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:41,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:41,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:41,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:41,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:41,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761685909] [2021-03-12 00:10:41,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:41,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:41,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545656796] [2021-03-12 00:10:41,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:41,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:41,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:41,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:41,122 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:41,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 657 transitions, 23011 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:41,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:41,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:41,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:43,142 INFO L129 PetriNetUnfolder]: 3450/6540 cut-off events. [2021-03-12 00:10:43,142 INFO L130 PetriNetUnfolder]: For 253863/253878 co-relation queries the response was YES. [2021-03-12 00:10:43,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58483 conditions, 6540 events. 3450/6540 cut-off events. For 253863/253878 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 53055 event pairs, 828 based on Foata normal form. 19/6559 useless extension candidates. Maximal degree in co-relation 58314. Up to 4120 conditions per place. [2021-03-12 00:10:43,261 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 481 selfloop transitions, 190 changer transitions 3/681 dead transitions. [2021-03-12 00:10:43,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 681 transitions, 24471 flow [2021-03-12 00:10:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:43,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:10:43,262 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:10:43,263 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:10:43,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:10:43,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:43,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:10:43,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:43,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:43,263 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:43,263 INFO L185 Difference]: Start difference. First operand has 494 places, 657 transitions, 23011 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:10:43,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 681 transitions, 24471 flow [2021-03-12 00:10:44,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 681 transitions, 24081 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:10:44,333 INFO L241 Difference]: Finished difference. Result has 498 places, 653 transitions, 22735 flow [2021-03-12 00:10:44,333 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22366, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22735, PETRI_PLACES=498, PETRI_TRANSITIONS=653} [2021-03-12 00:10:44,333 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 475 predicate places. [2021-03-12 00:10:44,333 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 653 transitions, 22735 flow [2021-03-12 00:10:44,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:44,333 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:44,333 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:44,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2021-03-12 00:10:44,334 INFO L428 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:44,334 INFO L82 PathProgramCache]: Analyzing trace with hash 554052375, now seen corresponding path program 23 times [2021-03-12 00:10:44,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:44,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255543987] [2021-03-12 00:10:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:44,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:44,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255543987] [2021-03-12 00:10:44,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748338781] [2021-03-12 00:10:44,366 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:44,392 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:10:44,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:44,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:44,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:44,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:44,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:44,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:44,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:44,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:10:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,446 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:44,446 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,448 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:10:44,448 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:10:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:44,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:44,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:44,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:44,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:44,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:10:44,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854649184] [2021-03-12 00:10:44,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:10:44,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:44,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:10:44,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:10:44,475 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:44,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 653 transitions, 22735 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:44,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:44,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:44,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:46,287 INFO L129 PetriNetUnfolder]: 3454/6484 cut-off events. [2021-03-12 00:10:46,287 INFO L130 PetriNetUnfolder]: For 249934/249949 co-relation queries the response was YES. [2021-03-12 00:10:46,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58445 conditions, 6484 events. 3454/6484 cut-off events. For 249934/249949 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 51832 event pairs, 696 based on Foata normal form. 11/6495 useless extension candidates. Maximal degree in co-relation 58274. Up to 3244 conditions per place. [2021-03-12 00:10:46,567 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 549 selfloop transitions, 141 changer transitions 1/698 dead transitions. [2021-03-12 00:10:46,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 698 transitions, 24894 flow [2021-03-12 00:10:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:10:46,568 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:10:46,568 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:10:46,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:10:46,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:46,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:10:46,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:46,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:46,568 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:46,568 INFO L185 Difference]: Start difference. First operand has 498 places, 653 transitions, 22735 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:10:46,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 698 transitions, 24894 flow [2021-03-12 00:10:47,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 698 transitions, 24500 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:10:47,526 INFO L241 Difference]: Finished difference. Result has 501 places, 660 transitions, 22938 flow [2021-03-12 00:10:47,526 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22341, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22938, PETRI_PLACES=501, PETRI_TRANSITIONS=660} [2021-03-12 00:10:47,526 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 478 predicate places. [2021-03-12 00:10:47,527 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 660 transitions, 22938 flow [2021-03-12 00:10:47,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:47,527 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:47,527 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:47,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable553 [2021-03-12 00:10:47,727 INFO L428 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:47,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash -805320400, now seen corresponding path program 21 times [2021-03-12 00:10:47,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:47,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786085217] [2021-03-12 00:10:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:47,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:47,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:47,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:47,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:47,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:47,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786085217] [2021-03-12 00:10:47,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:47,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:47,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324641423] [2021-03-12 00:10:47,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:47,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:47,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:47,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:47,756 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:47,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 660 transitions, 22938 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:47,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:47,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:47,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:49,583 INFO L129 PetriNetUnfolder]: 3438/6503 cut-off events. [2021-03-12 00:10:49,583 INFO L130 PetriNetUnfolder]: For 251172/251187 co-relation queries the response was YES. [2021-03-12 00:10:49,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58681 conditions, 6503 events. 3438/6503 cut-off events. For 251172/251187 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 52631 event pairs, 825 based on Foata normal form. 9/6512 useless extension candidates. Maximal degree in co-relation 58507. Up to 4132 conditions per place. [2021-03-12 00:10:49,707 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 471 selfloop transitions, 199 changer transitions 4/681 dead transitions. [2021-03-12 00:10:49,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 681 transitions, 24412 flow [2021-03-12 00:10:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:49,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:10:49,708 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:10:49,708 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:10:49,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:10:49,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:49,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:10:49,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:49,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:49,709 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:49,709 INFO L185 Difference]: Start difference. First operand has 501 places, 660 transitions, 22938 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:10:49,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 681 transitions, 24412 flow [2021-03-12 00:10:50,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 681 transitions, 24297 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-12 00:10:50,836 INFO L241 Difference]: Finished difference. Result has 504 places, 654 transitions, 22893 flow [2021-03-12 00:10:50,836 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22675, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22893, PETRI_PLACES=504, PETRI_TRANSITIONS=654} [2021-03-12 00:10:50,836 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 481 predicate places. [2021-03-12 00:10:50,836 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 654 transitions, 22893 flow [2021-03-12 00:10:50,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:50,836 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:50,836 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:50,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2021-03-12 00:10:50,836 INFO L428 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:50,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:50,837 INFO L82 PathProgramCache]: Analyzing trace with hash 900547759, now seen corresponding path program 24 times [2021-03-12 00:10:50,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:50,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439638053] [2021-03-12 00:10:50,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:50,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:50,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:50,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:50,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:50,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:50,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:50,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:50,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439638053] [2021-03-12 00:10:50,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:50,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:50,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322373630] [2021-03-12 00:10:50,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:50,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:50,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:50,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:50,867 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:50,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 654 transitions, 22893 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:50,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:50,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:50,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:52,696 INFO L129 PetriNetUnfolder]: 3417/6405 cut-off events. [2021-03-12 00:10:52,696 INFO L130 PetriNetUnfolder]: For 249036/249051 co-relation queries the response was YES. [2021-03-12 00:10:52,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57743 conditions, 6405 events. 3417/6405 cut-off events. For 249036/249051 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 50988 event pairs, 720 based on Foata normal form. 21/6426 useless extension candidates. Maximal degree in co-relation 57570. Up to 3215 conditions per place. [2021-03-12 00:10:52,812 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 551 selfloop transitions, 128 changer transitions 1/687 dead transitions. [2021-03-12 00:10:52,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 687 transitions, 24688 flow [2021-03-12 00:10:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:10:52,813 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:10:52,813 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:10:52,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:10:52,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:52,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:10:52,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:52,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:52,814 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:52,814 INFO L185 Difference]: Start difference. First operand has 504 places, 654 transitions, 22893 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:10:52,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 687 transitions, 24688 flow [2021-03-12 00:10:53,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 687 transitions, 24284 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-12 00:10:53,863 INFO L241 Difference]: Finished difference. Result has 503 places, 655 transitions, 22767 flow [2021-03-12 00:10:53,863 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22461, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22767, PETRI_PLACES=503, PETRI_TRANSITIONS=655} [2021-03-12 00:10:53,863 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 480 predicate places. [2021-03-12 00:10:53,863 INFO L480 AbstractCegarLoop]: Abstraction has has 503 places, 655 transitions, 22767 flow [2021-03-12 00:10:53,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:53,863 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:53,863 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:53,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2021-03-12 00:10:53,863 INFO L428 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:53,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:53,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1405589980, now seen corresponding path program 22 times [2021-03-12 00:10:53,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:53,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762795320] [2021-03-12 00:10:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:53,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:53,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:53,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:10:53,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:53,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:53,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:53,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:53,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:53,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:53,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762795320] [2021-03-12 00:10:53,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:53,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:53,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833205084] [2021-03-12 00:10:53,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:53,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:53,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:53,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:53,902 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:53,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 655 transitions, 22767 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:53,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:53,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:53,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:55,678 INFO L129 PetriNetUnfolder]: 3408/6430 cut-off events. [2021-03-12 00:10:55,678 INFO L130 PetriNetUnfolder]: For 252328/252343 co-relation queries the response was YES. [2021-03-12 00:10:55,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58269 conditions, 6430 events. 3408/6430 cut-off events. For 252328/252343 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 51786 event pairs, 858 based on Foata normal form. 9/6439 useless extension candidates. Maximal degree in co-relation 58097. Up to 4111 conditions per place. [2021-03-12 00:10:55,788 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 483 selfloop transitions, 184 changer transitions 2/676 dead transitions. [2021-03-12 00:10:55,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 676 transitions, 24304 flow [2021-03-12 00:10:55,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2021-03-12 00:10:55,790 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.763265306122449 [2021-03-12 00:10:55,790 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 187 transitions. [2021-03-12 00:10:55,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 187 transitions. [2021-03-12 00:10:55,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:55,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 187 transitions. [2021-03-12 00:10:55,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:55,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:55,791 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:55,791 INFO L185 Difference]: Start difference. First operand has 503 places, 655 transitions, 22767 flow. Second operand 7 states and 187 transitions. [2021-03-12 00:10:55,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 676 transitions, 24304 flow [2021-03-12 00:10:56,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 676 transitions, 24216 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:10:56,826 INFO L241 Difference]: Finished difference. Result has 505 places, 651 transitions, 22863 flow [2021-03-12 00:10:56,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22618, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22863, PETRI_PLACES=505, PETRI_TRANSITIONS=651} [2021-03-12 00:10:56,826 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 482 predicate places. [2021-03-12 00:10:56,826 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 651 transitions, 22863 flow [2021-03-12 00:10:56,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:56,827 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:56,827 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:56,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2021-03-12 00:10:56,827 INFO L428 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:56,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:56,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1923308489, now seen corresponding path program 25 times [2021-03-12 00:10:56,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:56,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710703889] [2021-03-12 00:10:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:56,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:56,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:56,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:56,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:56,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:10:56,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:56,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:56,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:56,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710703889] [2021-03-12 00:10:56,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:10:56,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:10:56,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186567127] [2021-03-12 00:10:56,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:10:56,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:56,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:10:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:10:56,856 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:56,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 651 transitions, 22863 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:56,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:56,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:56,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:10:58,542 INFO L129 PetriNetUnfolder]: 3387/6333 cut-off events. [2021-03-12 00:10:58,542 INFO L130 PetriNetUnfolder]: For 256949/256964 co-relation queries the response was YES. [2021-03-12 00:10:58,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58257 conditions, 6333 events. 3387/6333 cut-off events. For 256949/256964 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 50020 event pairs, 574 based on Foata normal form. 15/6348 useless extension candidates. Maximal degree in co-relation 58086. Up to 2689 conditions per place. [2021-03-12 00:10:58,651 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 524 selfloop transitions, 147 changer transitions 5/683 dead transitions. [2021-03-12 00:10:58,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 683 transitions, 24530 flow [2021-03-12 00:10:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:10:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:10:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:10:58,652 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:10:58,652 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:10:58,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:10:58,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:10:58,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:10:58,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:58,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:58,652 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:58,652 INFO L185 Difference]: Start difference. First operand has 505 places, 651 transitions, 22863 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:10:58,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 683 transitions, 24530 flow [2021-03-12 00:10:59,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 683 transitions, 24163 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:10:59,705 INFO L241 Difference]: Finished difference. Result has 504 places, 643 transitions, 22487 flow [2021-03-12 00:10:59,705 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22301, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22487, PETRI_PLACES=504, PETRI_TRANSITIONS=643} [2021-03-12 00:10:59,705 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 481 predicate places. [2021-03-12 00:10:59,705 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 643 transitions, 22487 flow [2021-03-12 00:10:59,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:59,705 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:10:59,705 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:10:59,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2021-03-12 00:10:59,706 INFO L428 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:10:59,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:10:59,706 INFO L82 PathProgramCache]: Analyzing trace with hash 47021511, now seen corresponding path program 26 times [2021-03-12 00:10:59,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:10:59,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634042240] [2021-03-12 00:10:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:10:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:10:59,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:59,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:10:59,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:59,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634042240] [2021-03-12 00:10:59,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39842795] [2021-03-12 00:10:59,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:10:59,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:10:59,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:10:59,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:10:59,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:10:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:59,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:59,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:59,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:10:59,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:59,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:59,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:59,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:10:59,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:10:59,796 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:10:59,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:10:59,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:10:59,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:10:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:10:59,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:10:59,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:10:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:10:59,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:10:59,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:10:59,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669499758] [2021-03-12 00:10:59,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:10:59,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:10:59,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:10:59,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:10:59,803 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:10:59,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 643 transitions, 22487 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:10:59,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:10:59,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:10:59,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:01,704 INFO L129 PetriNetUnfolder]: 3819/7127 cut-off events. [2021-03-12 00:11:01,704 INFO L130 PetriNetUnfolder]: For 273329/273344 co-relation queries the response was YES. [2021-03-12 00:11:01,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63857 conditions, 7127 events. 3819/7127 cut-off events. For 273329/273344 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 57215 event pairs, 522 based on Foata normal form. 9/7136 useless extension candidates. Maximal degree in co-relation 63687. Up to 1847 conditions per place. [2021-03-12 00:11:02,018 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 489 selfloop transitions, 211 changer transitions 0/707 dead transitions. [2021-03-12 00:11:02,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 707 transitions, 25347 flow [2021-03-12 00:11:02,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:11:02,019 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:11:02,019 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:11:02,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:11:02,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:02,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:11:02,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:02,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:02,020 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:02,020 INFO L185 Difference]: Start difference. First operand has 504 places, 643 transitions, 22487 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:11:02,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 707 transitions, 25347 flow [2021-03-12 00:11:03,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 707 transitions, 24949 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-12 00:11:03,021 INFO L241 Difference]: Finished difference. Result has 502 places, 658 transitions, 23405 flow [2021-03-12 00:11:03,022 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22092, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23405, PETRI_PLACES=502, PETRI_TRANSITIONS=658} [2021-03-12 00:11:03,022 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:11:03,022 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 658 transitions, 23405 flow [2021-03-12 00:11:03,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:03,022 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:03,022 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:03,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable560 [2021-03-12 00:11:03,222 INFO L428 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:03,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1698503708, now seen corresponding path program 23 times [2021-03-12 00:11:03,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:03,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866083385] [2021-03-12 00:11:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:03,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:03,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:03,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866083385] [2021-03-12 00:11:03,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482726037] [2021-03-12 00:11:03,251 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:03,271 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:11:03,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:03,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:03,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:03,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:03,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:03,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:03,307 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:11:03,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:11:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:03,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:11:03,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,310 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:03,311 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,313 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:03,313 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:11:03,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:03,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:03,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:03,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:03,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:03,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:03,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:03,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:03,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:03,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:11:03,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754606291] [2021-03-12 00:11:03,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:11:03,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:03,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:11:03,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:11:03,335 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:03,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 658 transitions, 23405 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:03,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:03,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:03,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:05,309 INFO L129 PetriNetUnfolder]: 3815/7160 cut-off events. [2021-03-12 00:11:05,309 INFO L130 PetriNetUnfolder]: For 293396/293411 co-relation queries the response was YES. [2021-03-12 00:11:05,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65010 conditions, 7160 events. 3815/7160 cut-off events. For 293396/293411 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 58413 event pairs, 1005 based on Foata normal form. 7/7167 useless extension candidates. Maximal degree in co-relation 64838. Up to 4743 conditions per place. [2021-03-12 00:11:05,436 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 456 selfloop transitions, 214 changer transitions 2/679 dead transitions. [2021-03-12 00:11:05,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 679 transitions, 24952 flow [2021-03-12 00:11:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:11:05,437 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:11:05,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:11:05,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:11:05,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:05,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:11:05,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:05,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:05,438 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:05,438 INFO L185 Difference]: Start difference. First operand has 502 places, 658 transitions, 23405 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:11:05,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 679 transitions, 24952 flow [2021-03-12 00:11:06,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 679 transitions, 24646 flow, removed 38 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:06,643 INFO L241 Difference]: Finished difference. Result has 502 places, 656 transitions, 23399 flow [2021-03-12 00:11:06,643 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23043, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23399, PETRI_PLACES=502, PETRI_TRANSITIONS=656} [2021-03-12 00:11:06,643 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:11:06,643 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 656 transitions, 23399 flow [2021-03-12 00:11:06,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:06,643 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:06,643 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:06,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561,134 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:06,844 INFO L428 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:06,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash 842871459, now seen corresponding path program 27 times [2021-03-12 00:11:06,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:06,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372662456] [2021-03-12 00:11:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:06,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:06,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:06,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:06,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:06,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:06,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:06,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:06,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372662456] [2021-03-12 00:11:06,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:06,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:06,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286759065] [2021-03-12 00:11:06,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:06,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:06,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:06,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:06,874 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:06,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 656 transitions, 23399 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:06,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:06,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:06,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:08,815 INFO L129 PetriNetUnfolder]: 3796/7018 cut-off events. [2021-03-12 00:11:08,815 INFO L130 PetriNetUnfolder]: For 281660/281675 co-relation queries the response was YES. [2021-03-12 00:11:08,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63949 conditions, 7018 events. 3796/7018 cut-off events. For 281660/281675 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 55851 event pairs, 880 based on Foata normal form. 15/7033 useless extension candidates. Maximal degree in co-relation 63778. Up to 3748 conditions per place. [2021-03-12 00:11:08,943 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 545 selfloop transitions, 132 changer transitions 3/687 dead transitions. [2021-03-12 00:11:08,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 687 transitions, 25155 flow [2021-03-12 00:11:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:11:08,944 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:11:08,944 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:11:08,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:11:08,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:08,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:11:08,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:08,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:08,945 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:08,945 INFO L185 Difference]: Start difference. First operand has 502 places, 656 transitions, 23399 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:11:08,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 687 transitions, 25155 flow [2021-03-12 00:11:10,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 687 transitions, 24713 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-12 00:11:10,113 INFO L241 Difference]: Finished difference. Result has 498 places, 650 transitions, 23064 flow [2021-03-12 00:11:10,113 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22846, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23064, PETRI_PLACES=498, PETRI_TRANSITIONS=650} [2021-03-12 00:11:10,113 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 475 predicate places. [2021-03-12 00:11:10,113 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 650 transitions, 23064 flow [2021-03-12 00:11:10,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:10,113 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:10,113 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:10,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2021-03-12 00:11:10,113 INFO L428 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:10,113 INFO L82 PathProgramCache]: Analyzing trace with hash -751026924, now seen corresponding path program 24 times [2021-03-12 00:11:10,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:10,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304033592] [2021-03-12 00:11:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:10,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:10,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:10,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:10,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304033592] [2021-03-12 00:11:10,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138462205] [2021-03-12 00:11:10,154 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:11:10,195 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:11:10,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:10,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:10,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:10,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:10,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:10,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:10,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,240 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:10,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:10,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,243 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:10,244 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,245 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:10,245 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:11:10,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:10,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:10,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:10,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:10,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:10,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:11:10,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837525353] [2021-03-12 00:11:10,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:11:10,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:10,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:11:10,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:11:10,266 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:10,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 650 transitions, 23064 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:10,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:10,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:10,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:12,227 INFO L129 PetriNetUnfolder]: 3782/7018 cut-off events. [2021-03-12 00:11:12,227 INFO L130 PetriNetUnfolder]: For 280745/280760 co-relation queries the response was YES. [2021-03-12 00:11:12,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63533 conditions, 7018 events. 3782/7018 cut-off events. For 280745/280760 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 56250 event pairs, 1004 based on Foata normal form. 21/7039 useless extension candidates. Maximal degree in co-relation 63364. Up to 4721 conditions per place. [2021-03-12 00:11:12,538 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 452 selfloop transitions, 209 changer transitions 5/673 dead transitions. [2021-03-12 00:11:12,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 673 transitions, 24526 flow [2021-03-12 00:11:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:12,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:11:12,539 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:11:12,539 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:11:12,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:11:12,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:12,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:11:12,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:12,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:12,543 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:12,543 INFO L185 Difference]: Start difference. First operand has 498 places, 650 transitions, 23064 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:11:12,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 673 transitions, 24526 flow [2021-03-12 00:11:13,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 673 transitions, 24324 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-12 00:11:13,585 INFO L241 Difference]: Finished difference. Result has 499 places, 645 transitions, 23032 flow [2021-03-12 00:11:13,585 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22609, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23032, PETRI_PLACES=499, PETRI_TRANSITIONS=645} [2021-03-12 00:11:13,586 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 476 predicate places. [2021-03-12 00:11:13,586 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 645 transitions, 23032 flow [2021-03-12 00:11:13,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:13,586 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:13,586 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:13,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 135 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable565 [2021-03-12 00:11:13,786 INFO L428 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:13,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1638704003, now seen corresponding path program 28 times [2021-03-12 00:11:13,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:13,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970191697] [2021-03-12 00:11:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:13,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:13,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:13,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:13,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:13,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:13,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970191697] [2021-03-12 00:11:13,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340504651] [2021-03-12 00:11:13,820 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:13,839 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:11:13,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:13,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:13,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:13,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:13,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:13,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:13,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:13,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:13,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:13,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:13,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:13,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:13,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:13,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:13,893 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:13,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:13,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:11:13,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:13,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:13,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:13,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:11:13,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166133301] [2021-03-12 00:11:13,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:11:13,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:13,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:11:13,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:11:13,900 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:13,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 645 transitions, 23032 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:13,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:13,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:13,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:15,867 INFO L129 PetriNetUnfolder]: 3834/7038 cut-off events. [2021-03-12 00:11:15,867 INFO L130 PetriNetUnfolder]: For 290280/290295 co-relation queries the response was YES. [2021-03-12 00:11:15,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64994 conditions, 7038 events. 3834/7038 cut-off events. For 290280/290295 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 55633 event pairs, 865 based on Foata normal form. 13/7051 useless extension candidates. Maximal degree in co-relation 64824. Up to 3760 conditions per place. [2021-03-12 00:11:16,007 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 535 selfloop transitions, 151 changer transitions 0/693 dead transitions. [2021-03-12 00:11:16,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 693 transitions, 25519 flow [2021-03-12 00:11:16,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:11:16,008 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:11:16,008 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:11:16,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:11:16,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:16,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:11:16,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:16,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:16,008 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:16,009 INFO L185 Difference]: Start difference. First operand has 499 places, 645 transitions, 23032 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:11:16,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 693 transitions, 25519 flow [2021-03-12 00:11:17,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 693 transitions, 25191 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:11:17,225 INFO L241 Difference]: Finished difference. Result has 502 places, 663 transitions, 23803 flow [2021-03-12 00:11:17,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22706, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23803, PETRI_PLACES=502, PETRI_TRANSITIONS=663} [2021-03-12 00:11:17,226 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:11:17,226 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 663 transitions, 23803 flow [2021-03-12 00:11:17,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:17,226 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:17,226 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:17,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable568 [2021-03-12 00:11:17,426 INFO L428 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:17,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:17,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1718345390, now seen corresponding path program 25 times [2021-03-12 00:11:17,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:17,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769355101] [2021-03-12 00:11:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:17,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:17,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:17,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:17,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:17,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:17,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769355101] [2021-03-12 00:11:17,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724519843] [2021-03-12 00:11:17,473 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:17,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:17,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:17,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:17,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:17,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:17,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:17,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:17,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:17,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:17,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:17,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:17,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:17,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:17,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:17,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:17,563 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:17,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,564 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:17,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:11:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:17,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:17,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:17,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:11:17,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701138234] [2021-03-12 00:11:17,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:11:17,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:17,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:11:17,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:11:17,571 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:17,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 663 transitions, 23803 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:17,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:17,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:17,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:19,594 INFO L129 PetriNetUnfolder]: 3818/7050 cut-off events. [2021-03-12 00:11:19,594 INFO L130 PetriNetUnfolder]: For 295461/295476 co-relation queries the response was YES. [2021-03-12 00:11:19,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65351 conditions, 7050 events. 3818/7050 cut-off events. For 295461/295476 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 56253 event pairs, 958 based on Foata normal form. 21/7071 useless extension candidates. Maximal degree in co-relation 65180. Up to 4801 conditions per place. [2021-03-12 00:11:19,723 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 466 selfloop transitions, 212 changer transitions 0/685 dead transitions. [2021-03-12 00:11:19,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 685 transitions, 25430 flow [2021-03-12 00:11:19,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:11:19,724 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:11:19,724 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:11:19,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:11:19,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:19,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:11:19,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:19,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:19,724 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:19,725 INFO L185 Difference]: Start difference. First operand has 502 places, 663 transitions, 23803 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:11:19,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 685 transitions, 25430 flow [2021-03-12 00:11:20,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 685 transitions, 25185 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:20,892 INFO L241 Difference]: Finished difference. Result has 502 places, 662 transitions, 23968 flow [2021-03-12 00:11:20,892 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23544, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23968, PETRI_PLACES=502, PETRI_TRANSITIONS=662} [2021-03-12 00:11:20,893 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:11:20,893 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 662 transitions, 23968 flow [2021-03-12 00:11:20,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:20,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:20,893 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:21,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable569 [2021-03-12 00:11:21,093 INFO L428 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:21,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1197218707, now seen corresponding path program 29 times [2021-03-12 00:11:21,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:21,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548159835] [2021-03-12 00:11:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:21,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:21,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:21,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:21,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:21,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:21,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:21,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:21,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:21,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548159835] [2021-03-12 00:11:21,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:21,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:21,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408153107] [2021-03-12 00:11:21,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:21,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:21,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:21,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:21,122 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:21,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 662 transitions, 23968 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:21,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:21,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:21,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:23,005 INFO L129 PetriNetUnfolder]: 3814/6984 cut-off events. [2021-03-12 00:11:23,006 INFO L130 PetriNetUnfolder]: For 294643/294658 co-relation queries the response was YES. [2021-03-12 00:11:23,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64888 conditions, 6984 events. 3814/6984 cut-off events. For 294643/294658 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 54914 event pairs, 923 based on Foata normal form. 7/6991 useless extension candidates. Maximal degree in co-relation 64718. Up to 3728 conditions per place. [2021-03-12 00:11:23,130 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 551 selfloop transitions, 127 changer transitions 4/689 dead transitions. [2021-03-12 00:11:23,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 689 transitions, 25679 flow [2021-03-12 00:11:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:23,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:11:23,131 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:11:23,131 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:11:23,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:11:23,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:23,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:11:23,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:23,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:23,315 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:23,315 INFO L185 Difference]: Start difference. First operand has 502 places, 662 transitions, 23968 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:11:23,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 689 transitions, 25679 flow [2021-03-12 00:11:24,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 689 transitions, 25056 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-12 00:11:24,319 INFO L241 Difference]: Finished difference. Result has 498 places, 659 transitions, 23479 flow [2021-03-12 00:11:24,320 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23305, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23479, PETRI_PLACES=498, PETRI_TRANSITIONS=659} [2021-03-12 00:11:24,320 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 475 predicate places. [2021-03-12 00:11:24,320 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 659 transitions, 23479 flow [2021-03-12 00:11:24,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:24,320 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:24,320 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:24,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2021-03-12 00:11:24,320 INFO L428 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:24,320 INFO L82 PathProgramCache]: Analyzing trace with hash -918290256, now seen corresponding path program 26 times [2021-03-12 00:11:24,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:24,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807384732] [2021-03-12 00:11:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:24,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:24,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:24,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:24,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:24,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:24,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:24,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:24,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:24,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807384732] [2021-03-12 00:11:24,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:24,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496066887] [2021-03-12 00:11:24,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:24,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:24,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:24,353 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:24,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 659 transitions, 23479 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:24,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:24,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:24,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:26,288 INFO L129 PetriNetUnfolder]: 3791/7004 cut-off events. [2021-03-12 00:11:26,288 INFO L130 PetriNetUnfolder]: For 284065/284070 co-relation queries the response was YES. [2021-03-12 00:11:26,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64167 conditions, 7004 events. 3791/7004 cut-off events. For 284065/284070 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 55822 event pairs, 1004 based on Foata normal form. 12/7016 useless extension candidates. Maximal degree in co-relation 63998. Up to 4793 conditions per place. [2021-03-12 00:11:26,411 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 491 selfloop transitions, 179 changer transitions 3/680 dead transitions. [2021-03-12 00:11:26,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 680 transitions, 25026 flow [2021-03-12 00:11:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:11:26,413 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:11:26,413 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:11:26,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:11:26,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:26,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:11:26,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:26,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:26,413 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:26,413 INFO L185 Difference]: Start difference. First operand has 498 places, 659 transitions, 23479 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:11:26,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 680 transitions, 25026 flow [2021-03-12 00:11:27,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 680 transitions, 24720 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-12 00:11:27,529 INFO L241 Difference]: Finished difference. Result has 495 places, 657 transitions, 23486 flow [2021-03-12 00:11:27,529 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23060, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=23486, PETRI_PLACES=495, PETRI_TRANSITIONS=657} [2021-03-12 00:11:27,529 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 472 predicate places. [2021-03-12 00:11:27,529 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 657 transitions, 23486 flow [2021-03-12 00:11:27,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:27,530 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:27,530 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:27,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2021-03-12 00:11:27,530 INFO L428 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1780319607, now seen corresponding path program 30 times [2021-03-12 00:11:27,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:27,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302841015] [2021-03-12 00:11:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:27,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:27,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:27,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:27,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:27,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302841015] [2021-03-12 00:11:27,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285385952] [2021-03-12 00:11:27,563 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:27,582 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:11:27,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:27,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:27,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:27,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:27,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:27,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:27,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:27,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:27,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:27,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:27,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:27,635 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:27,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:27,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:27,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:27,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:11:27,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:27,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:27,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:27,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:11:27,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30307904] [2021-03-12 00:11:27,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:11:27,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:27,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:11:27,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:11:27,645 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:27,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 657 transitions, 23486 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:27,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:27,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:27,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:29,691 INFO L129 PetriNetUnfolder]: 3849/7036 cut-off events. [2021-03-12 00:11:29,691 INFO L130 PetriNetUnfolder]: For 293418/293433 co-relation queries the response was YES. [2021-03-12 00:11:29,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65556 conditions, 7036 events. 3849/7036 cut-off events. For 293418/293433 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 55232 event pairs, 832 based on Foata normal form. 9/7045 useless extension candidates. Maximal degree in co-relation 65387. Up to 3726 conditions per place. [2021-03-12 00:11:29,811 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 531 selfloop transitions, 165 changer transitions 0/703 dead transitions. [2021-03-12 00:11:29,811 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 703 transitions, 26015 flow [2021-03-12 00:11:29,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:11:29,812 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:11:29,812 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:11:29,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:11:29,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:29,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:11:29,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:29,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:29,813 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:29,813 INFO L185 Difference]: Start difference. First operand has 495 places, 657 transitions, 23486 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:11:29,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 703 transitions, 26015 flow [2021-03-12 00:11:30,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 703 transitions, 25569 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-03-12 00:11:30,938 INFO L241 Difference]: Finished difference. Result has 489 places, 674 transitions, 24183 flow [2021-03-12 00:11:30,938 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23036, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24183, PETRI_PLACES=489, PETRI_TRANSITIONS=674} [2021-03-12 00:11:30,938 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 466 predicate places. [2021-03-12 00:11:30,938 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 674 transitions, 24183 flow [2021-03-12 00:11:30,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:30,938 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:30,939 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:31,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable572 [2021-03-12 00:11:31,147 INFO L428 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:31,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1621632710, now seen corresponding path program 27 times [2021-03-12 00:11:31,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:31,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856661867] [2021-03-12 00:11:31,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:31,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:31,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:31,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:31,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:31,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856661867] [2021-03-12 00:11:31,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565966740] [2021-03-12 00:11:31,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:31,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:11:31,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:31,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:31,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:31,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:31,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:31,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:31,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:31,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:31,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:31,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:31,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:31,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:31,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:31,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:31,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:31,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:31,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:31,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:31,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:31,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:31,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:31,272 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:31,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:31,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:31,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:31,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:11:31,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:31,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:31,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:31,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:11:31,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200683496] [2021-03-12 00:11:31,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:11:31,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:31,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:11:31,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:11:31,278 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:31,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 674 transitions, 24183 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:31,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:31,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:31,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:33,289 INFO L129 PetriNetUnfolder]: 3841/7069 cut-off events. [2021-03-12 00:11:33,289 INFO L130 PetriNetUnfolder]: For 294834/294839 co-relation queries the response was YES. [2021-03-12 00:11:33,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65974 conditions, 7069 events. 3841/7069 cut-off events. For 294834/294839 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 56112 event pairs, 963 based on Foata normal form. 10/7079 useless extension candidates. Maximal degree in co-relation 65808. Up to 4881 conditions per place. [2021-03-12 00:11:33,437 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 504 selfloop transitions, 188 changer transitions 0/699 dead transitions. [2021-03-12 00:11:33,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 699 transitions, 25936 flow [2021-03-12 00:11:33,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:11:33,438 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:11:33,438 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:11:33,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:11:33,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:33,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:11:33,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:33,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:33,439 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:33,439 INFO L185 Difference]: Start difference. First operand has 489 places, 674 transitions, 24183 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:11:33,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 699 transitions, 25936 flow [2021-03-12 00:11:34,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 699 transitions, 25646 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-12 00:11:34,677 INFO L241 Difference]: Finished difference. Result has 493 places, 679 transitions, 24451 flow [2021-03-12 00:11:34,678 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23901, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24451, PETRI_PLACES=493, PETRI_TRANSITIONS=679} [2021-03-12 00:11:34,678 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 470 predicate places. [2021-03-12 00:11:34,678 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 679 transitions, 24451 flow [2021-03-12 00:11:34,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:34,678 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:34,678 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:34,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable573 [2021-03-12 00:11:34,879 INFO L428 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:34,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:34,879 INFO L82 PathProgramCache]: Analyzing trace with hash -444922630, now seen corresponding path program 28 times [2021-03-12 00:11:34,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:34,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491277911] [2021-03-12 00:11:34,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:34,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:34,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:34,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:34,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491277911] [2021-03-12 00:11:34,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123476778] [2021-03-12 00:11:34,921 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:34,941 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:11:34,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:34,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:34,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:34,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:34,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:34,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:34,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:34,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:34,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:34,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:34,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:34,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:34,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:34,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:34,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:34,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:34,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:34,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:34,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:35,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:35,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:35,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:35,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:35,004 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:35,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:35,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:35,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:35,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:11:35,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:35,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:35,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:35,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:11:35,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263792475] [2021-03-12 00:11:35,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:11:35,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:35,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:11:35,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:11:35,012 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:35,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 679 transitions, 24451 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:35,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:35,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:35,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:36,943 INFO L129 PetriNetUnfolder]: 3837/7044 cut-off events. [2021-03-12 00:11:36,944 INFO L130 PetriNetUnfolder]: For 295331/295346 co-relation queries the response was YES. [2021-03-12 00:11:37,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65587 conditions, 7044 events. 3837/7044 cut-off events. For 295331/295346 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 55763 event pairs, 960 based on Foata normal form. 9/7053 useless extension candidates. Maximal degree in co-relation 65419. Up to 4881 conditions per place. [2021-03-12 00:11:37,081 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 501 selfloop transitions, 193 changer transitions 0/701 dead transitions. [2021-03-12 00:11:37,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 701 transitions, 26165 flow [2021-03-12 00:11:37,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:11:37,082 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:11:37,082 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:11:37,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:11:37,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:37,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:11:37,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:37,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:37,083 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:37,083 INFO L185 Difference]: Start difference. First operand has 493 places, 679 transitions, 24451 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:11:37,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 701 transitions, 26165 flow [2021-03-12 00:11:38,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 701 transitions, 25751 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-03-12 00:11:38,247 INFO L241 Difference]: Finished difference. Result has 489 places, 683 transitions, 24577 flow [2021-03-12 00:11:38,248 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=24022, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24577, PETRI_PLACES=489, PETRI_TRANSITIONS=683} [2021-03-12 00:11:38,248 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 466 predicate places. [2021-03-12 00:11:38,248 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 683 transitions, 24577 flow [2021-03-12 00:11:38,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:38,248 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:38,248 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:38,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable574 [2021-03-12 00:11:38,449 INFO L428 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:38,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:38,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1265301844, now seen corresponding path program 29 times [2021-03-12 00:11:38,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:38,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749660225] [2021-03-12 00:11:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:38,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:38,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:38,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:38,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:38,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:38,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:38,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:38,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:38,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749660225] [2021-03-12 00:11:38,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:38,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:38,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069054718] [2021-03-12 00:11:38,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:38,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:38,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:38,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:38,480 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:38,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 683 transitions, 24577 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:38,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:38,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:38,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:40,461 INFO L129 PetriNetUnfolder]: 3825/7045 cut-off events. [2021-03-12 00:11:40,462 INFO L130 PetriNetUnfolder]: For 293830/293845 co-relation queries the response was YES. [2021-03-12 00:11:40,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65358 conditions, 7045 events. 3825/7045 cut-off events. For 293830/293845 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 56015 event pairs, 1024 based on Foata normal form. 9/7054 useless extension candidates. Maximal degree in co-relation 65193. Up to 4881 conditions per place. [2021-03-12 00:11:40,590 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 512 selfloop transitions, 180 changer transitions 1/700 dead transitions. [2021-03-12 00:11:40,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 700 transitions, 26109 flow [2021-03-12 00:11:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:11:40,592 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:11:40,592 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:11:40,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:11:40,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:40,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:11:40,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:40,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:40,592 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:40,592 INFO L185 Difference]: Start difference. First operand has 489 places, 683 transitions, 24577 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:11:40,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 700 transitions, 26109 flow [2021-03-12 00:11:41,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 700 transitions, 25729 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:41,921 INFO L241 Difference]: Finished difference. Result has 491 places, 681 transitions, 24458 flow [2021-03-12 00:11:41,921 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=24146, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24458, PETRI_PLACES=491, PETRI_TRANSITIONS=681} [2021-03-12 00:11:41,922 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 468 predicate places. [2021-03-12 00:11:41,922 INFO L480 AbstractCegarLoop]: Abstraction has has 491 places, 681 transitions, 24458 flow [2021-03-12 00:11:41,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:41,922 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:41,922 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:41,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2021-03-12 00:11:41,922 INFO L428 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:41,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:41,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1630472400, now seen corresponding path program 30 times [2021-03-12 00:11:41,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:41,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667772878] [2021-03-12 00:11:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:41,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:41,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:41,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:41,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:41,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:41,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:41,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:41,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:41,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667772878] [2021-03-12 00:11:41,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:41,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:41,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398467728] [2021-03-12 00:11:41,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:41,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:41,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:41,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:41,954 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:41,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 681 transitions, 24458 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:41,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:41,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:41,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:43,937 INFO L129 PetriNetUnfolder]: 3820/7026 cut-off events. [2021-03-12 00:11:43,937 INFO L130 PetriNetUnfolder]: For 292476/292480 co-relation queries the response was YES. [2021-03-12 00:11:44,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65177 conditions, 7026 events. 3820/7026 cut-off events. For 292476/292480 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 55675 event pairs, 976 based on Foata normal form. 4/7030 useless extension candidates. Maximal degree in co-relation 65011. Up to 4881 conditions per place. [2021-03-12 00:11:44,064 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 506 selfloop transitions, 178 changer transitions 4/695 dead transitions. [2021-03-12 00:11:44,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 695 transitions, 25948 flow [2021-03-12 00:11:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2021-03-12 00:11:44,065 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7591836734693878 [2021-03-12 00:11:44,065 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 186 transitions. [2021-03-12 00:11:44,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 186 transitions. [2021-03-12 00:11:44,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:44,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 186 transitions. [2021-03-12 00:11:44,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:44,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:44,066 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:44,066 INFO L185 Difference]: Start difference. First operand has 491 places, 681 transitions, 24458 flow. Second operand 7 states and 186 transitions. [2021-03-12 00:11:44,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 695 transitions, 25948 flow [2021-03-12 00:11:45,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 695 transitions, 25597 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:45,244 INFO L241 Difference]: Finished difference. Result has 490 places, 678 transitions, 24347 flow [2021-03-12 00:11:45,245 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=24062, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24347, PETRI_PLACES=490, PETRI_TRANSITIONS=678} [2021-03-12 00:11:45,245 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 467 predicate places. [2021-03-12 00:11:45,245 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 678 transitions, 24347 flow [2021-03-12 00:11:45,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:45,245 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:45,245 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:45,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2021-03-12 00:11:45,245 INFO L428 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:45,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:45,245 INFO L82 PathProgramCache]: Analyzing trace with hash 644875587, now seen corresponding path program 31 times [2021-03-12 00:11:45,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:45,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473067424] [2021-03-12 00:11:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:45,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:45,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:45,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:45,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:45,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:45,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:45,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:45,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473067424] [2021-03-12 00:11:45,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:45,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:45,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20406634] [2021-03-12 00:11:45,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:45,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:45,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:45,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:45,282 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:45,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 678 transitions, 24347 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:45,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:45,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:45,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:47,443 INFO L129 PetriNetUnfolder]: 3795/6958 cut-off events. [2021-03-12 00:11:47,443 INFO L130 PetriNetUnfolder]: For 291432/291447 co-relation queries the response was YES. [2021-03-12 00:11:47,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64736 conditions, 6958 events. 3795/6958 cut-off events. For 291432/291447 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 54895 event pairs, 1020 based on Foata normal form. 8/6966 useless extension candidates. Maximal degree in co-relation 64571. Up to 4100 conditions per place. [2021-03-12 00:11:47,547 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 467 selfloop transitions, 228 changer transitions 2/704 dead transitions. [2021-03-12 00:11:47,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 704 transitions, 26045 flow [2021-03-12 00:11:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:11:47,548 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:11:47,548 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:11:47,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:11:47,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:47,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:11:47,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:47,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:47,548 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:47,549 INFO L185 Difference]: Start difference. First operand has 490 places, 678 transitions, 24347 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:11:47,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 704 transitions, 26045 flow [2021-03-12 00:11:48,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 704 transitions, 25641 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:48,556 INFO L241 Difference]: Finished difference. Result has 489 places, 675 transitions, 24266 flow [2021-03-12 00:11:48,557 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23843, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24266, PETRI_PLACES=489, PETRI_TRANSITIONS=675} [2021-03-12 00:11:48,557 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 466 predicate places. [2021-03-12 00:11:48,557 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 675 transitions, 24266 flow [2021-03-12 00:11:48,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:48,557 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:48,557 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:48,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2021-03-12 00:11:48,557 INFO L428 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1856697658, now seen corresponding path program 31 times [2021-03-12 00:11:48,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:48,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283827640] [2021-03-12 00:11:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:48,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:48,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283827640] [2021-03-12 00:11:48,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324668945] [2021-03-12 00:11:48,583 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:48,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:48,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:48,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:11:48,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:11:48,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:48,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:48,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:48,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:48,625 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:11:48,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:11:48,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:48,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:11:48,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,628 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:48,628 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,630 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:48,630 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:11:48,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:48,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:48,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:48,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:48,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:48,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:11:48,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567230851] [2021-03-12 00:11:48,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:11:48,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:48,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:11:48,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:11:48,653 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:48,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 675 transitions, 24266 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:48,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:48,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:48,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:50,680 INFO L129 PetriNetUnfolder]: 3913/7144 cut-off events. [2021-03-12 00:11:50,681 INFO L130 PetriNetUnfolder]: For 298035/298050 co-relation queries the response was YES. [2021-03-12 00:11:50,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66723 conditions, 7144 events. 3913/7144 cut-off events. For 298035/298050 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 56114 event pairs, 744 based on Foata normal form. 4/7148 useless extension candidates. Maximal degree in co-relation 66556. Up to 3537 conditions per place. [2021-03-12 00:11:50,821 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 467 selfloop transitions, 265 changer transitions 11/750 dead transitions. [2021-03-12 00:11:50,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 750 transitions, 27396 flow [2021-03-12 00:11:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:11:50,822 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:11:50,822 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:11:50,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:11:50,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:50,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:11:50,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:50,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:50,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:50,823 INFO L185 Difference]: Start difference. First operand has 489 places, 675 transitions, 24266 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:11:50,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 750 transitions, 27396 flow [2021-03-12 00:11:52,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 750 transitions, 26713 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:11:52,093 INFO L241 Difference]: Finished difference. Result has 491 places, 688 transitions, 24610 flow [2021-03-12 00:11:52,093 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=23583, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24610, PETRI_PLACES=491, PETRI_TRANSITIONS=688} [2021-03-12 00:11:52,094 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 468 predicate places. [2021-03-12 00:11:52,094 INFO L480 AbstractCegarLoop]: Abstraction has has 491 places, 688 transitions, 24610 flow [2021-03-12 00:11:52,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:52,094 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:52,094 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:52,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578,141 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:52,294 INFO L428 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:52,294 INFO L82 PathProgramCache]: Analyzing trace with hash -320921347, now seen corresponding path program 32 times [2021-03-12 00:11:52,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:52,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795913458] [2021-03-12 00:11:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:52,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:52,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:52,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:52,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:52,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:52,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:52,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:52,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:52,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795913458] [2021-03-12 00:11:52,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:11:52,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:11:52,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005156516] [2021-03-12 00:11:52,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:11:52,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:11:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:11:52,327 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:52,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 688 transitions, 24610 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:52,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:52,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:52,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:54,414 INFO L129 PetriNetUnfolder]: 3907/7150 cut-off events. [2021-03-12 00:11:54,414 INFO L130 PetriNetUnfolder]: For 297690/297705 co-relation queries the response was YES. [2021-03-12 00:11:54,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67069 conditions, 7150 events. 3907/7150 cut-off events. For 297690/297705 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 56632 event pairs, 1063 based on Foata normal form. 6/7156 useless extension candidates. Maximal degree in co-relation 66899. Up to 4286 conditions per place. [2021-03-12 00:11:54,530 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 481 selfloop transitions, 228 changer transitions 2/718 dead transitions. [2021-03-12 00:11:54,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 718 transitions, 26463 flow [2021-03-12 00:11:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:54,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:11:54,531 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:11:54,531 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:11:54,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:11:54,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:54,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:11:54,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:54,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:54,531 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:54,531 INFO L185 Difference]: Start difference. First operand has 491 places, 688 transitions, 24610 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:11:54,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 718 transitions, 26463 flow [2021-03-12 00:11:55,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 718 transitions, 25928 flow, removed 44 selfloop flow, removed 5 redundant places. [2021-03-12 00:11:55,616 INFO L241 Difference]: Finished difference. Result has 493 places, 686 transitions, 24465 flow [2021-03-12 00:11:55,616 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=24018, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=24465, PETRI_PLACES=493, PETRI_TRANSITIONS=686} [2021-03-12 00:11:55,616 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 470 predicate places. [2021-03-12 00:11:55,616 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 686 transitions, 24465 flow [2021-03-12 00:11:55,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:55,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:55,616 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:55,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2021-03-12 00:11:55,616 INFO L428 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:55,617 INFO L82 PathProgramCache]: Analyzing trace with hash 293394406, now seen corresponding path program 32 times [2021-03-12 00:11:55,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:55,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166195087] [2021-03-12 00:11:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:55,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:55,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:55,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166195087] [2021-03-12 00:11:55,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497044302] [2021-03-12 00:11:55,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:55,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:11:55,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:55,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:55,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:55,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:55,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:55,713 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:11:55,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:11:55,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:55,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:11:55,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,715 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:55,716 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,717 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:55,718 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,718 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:11:55,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:55,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:55,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:55,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:55,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:55,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:55,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:55,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:55,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:55,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:11:55,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945901219] [2021-03-12 00:11:55,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:11:55,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:55,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:11:55,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:11:55,741 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:55,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 686 transitions, 24465 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:55,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:55,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:55,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:11:57,875 INFO L129 PetriNetUnfolder]: 4171/7801 cut-off events. [2021-03-12 00:11:57,875 INFO L130 PetriNetUnfolder]: For 311814/311829 co-relation queries the response was YES. [2021-03-12 00:11:57,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72216 conditions, 7801 events. 4171/7801 cut-off events. For 311814/311829 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 63935 event pairs, 880 based on Foata normal form. 4/7805 useless extension candidates. Maximal degree in co-relation 72047. Up to 4952 conditions per place. [2021-03-12 00:11:58,015 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 524 selfloop transitions, 236 changer transitions 11/778 dead transitions. [2021-03-12 00:11:58,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 778 transitions, 28112 flow [2021-03-12 00:11:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:11:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:11:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:11:58,017 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:11:58,017 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:11:58,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:11:58,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:11:58,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:11:58,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:58,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:58,017 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:58,017 INFO L185 Difference]: Start difference. First operand has 493 places, 686 transitions, 24465 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:11:58,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 778 transitions, 28112 flow [2021-03-12 00:11:59,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 778 transitions, 27650 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:11:59,354 INFO L241 Difference]: Finished difference. Result has 499 places, 710 transitions, 25419 flow [2021-03-12 00:11:59,355 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=24003, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25419, PETRI_PLACES=499, PETRI_TRANSITIONS=710} [2021-03-12 00:11:59,355 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 476 predicate places. [2021-03-12 00:11:59,355 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 710 transitions, 25419 flow [2021-03-12 00:11:59,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:59,355 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:11:59,355 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:11:59,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582,142 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:59,555 INFO L428 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:11:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:11:59,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1269952111, now seen corresponding path program 33 times [2021-03-12 00:11:59,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:11:59,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282328726] [2021-03-12 00:11:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:11:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:11:59,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:11:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:59,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:59,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282328726] [2021-03-12 00:11:59,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538759286] [2021-03-12 00:11:59,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:11:59,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:11:59,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:11:59,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:11:59,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:11:59,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:11:59,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:11:59,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:59,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:11:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,654 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:11:59,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:59,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:11:59,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:11:59,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,657 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:59,657 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,659 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:11:59,659 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:11:59,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:11:59,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:11:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:11:59,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:11:59,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:11:59,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:11:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:11:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:11:59,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:11:59,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:11:59,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050868304] [2021-03-12 00:11:59,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:11:59,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:11:59,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:11:59,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:11:59,679 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:11:59,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 710 transitions, 25419 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:11:59,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:11:59,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:11:59,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:01,909 INFO L129 PetriNetUnfolder]: 4191/7802 cut-off events. [2021-03-12 00:12:01,909 INFO L130 PetriNetUnfolder]: For 320952/320967 co-relation queries the response was YES. [2021-03-12 00:12:02,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73532 conditions, 7802 events. 4191/7802 cut-off events. For 320952/320967 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 63952 event pairs, 1208 based on Foata normal form. 6/7808 useless extension candidates. Maximal degree in co-relation 73359. Up to 4731 conditions per place. [2021-03-12 00:12:02,053 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 512 selfloop transitions, 231 changer transitions 1/751 dead transitions. [2021-03-12 00:12:02,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 751 transitions, 27608 flow [2021-03-12 00:12:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:12:02,054 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:12:02,054 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:12:02,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:12:02,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:02,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:12:02,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:02,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:02,055 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:02,055 INFO L185 Difference]: Start difference. First operand has 499 places, 710 transitions, 25419 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:12:02,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 751 transitions, 27608 flow [2021-03-12 00:12:03,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 751 transitions, 27440 flow, removed 44 selfloop flow, removed 6 redundant places. [2021-03-12 00:12:03,445 INFO L241 Difference]: Finished difference. Result has 501 places, 717 transitions, 25887 flow [2021-03-12 00:12:03,445 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25251, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25887, PETRI_PLACES=501, PETRI_TRANSITIONS=717} [2021-03-12 00:12:03,445 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 478 predicate places. [2021-03-12 00:12:03,446 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 717 transitions, 25887 flow [2021-03-12 00:12:03,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:03,446 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:03,446 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:03,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable585 [2021-03-12 00:12:03,646 INFO L428 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:03,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:03,646 INFO L82 PathProgramCache]: Analyzing trace with hash -236583844, now seen corresponding path program 33 times [2021-03-12 00:12:03,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:03,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864617269] [2021-03-12 00:12:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:03,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:03,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:03,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:03,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:03,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:03,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:03,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:03,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:03,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864617269] [2021-03-12 00:12:03,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:03,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:03,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466132365] [2021-03-12 00:12:03,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:03,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:03,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:03,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:03,674 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:03,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 717 transitions, 25887 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:03,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:03,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:03,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:06,199 INFO L129 PetriNetUnfolder]: 4275/8030 cut-off events. [2021-03-12 00:12:06,199 INFO L130 PetriNetUnfolder]: For 334989/335004 co-relation queries the response was YES. [2021-03-12 00:12:06,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75823 conditions, 8030 events. 4275/8030 cut-off events. For 334989/335004 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 66525 event pairs, 951 based on Foata normal form. 4/8034 useless extension candidates. Maximal degree in co-relation 75652. Up to 5002 conditions per place. [2021-03-12 00:12:06,333 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 532 selfloop transitions, 223 changer transitions 5/767 dead transitions. [2021-03-12 00:12:06,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 767 transitions, 28362 flow [2021-03-12 00:12:06,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:12:06,334 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:12:06,334 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:12:06,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:12:06,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:06,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:12:06,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:06,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:06,335 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:06,335 INFO L185 Difference]: Start difference. First operand has 501 places, 717 transitions, 25887 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:12:06,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 767 transitions, 28362 flow [2021-03-12 00:12:07,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 767 transitions, 27971 flow, removed 13 selfloop flow, removed 3 redundant places. [2021-03-12 00:12:07,590 INFO L241 Difference]: Finished difference. Result has 506 places, 719 transitions, 25994 flow [2021-03-12 00:12:07,590 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25502, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=25994, PETRI_PLACES=506, PETRI_TRANSITIONS=719} [2021-03-12 00:12:07,590 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 483 predicate places. [2021-03-12 00:12:07,590 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 719 transitions, 25994 flow [2021-03-12 00:12:07,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:07,591 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:07,591 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:07,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2021-03-12 00:12:07,591 INFO L428 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:07,591 INFO L82 PathProgramCache]: Analyzing trace with hash 626984185, now seen corresponding path program 34 times [2021-03-12 00:12:07,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:07,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202434529] [2021-03-12 00:12:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:07,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:07,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:07,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202434529] [2021-03-12 00:12:07,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102761328] [2021-03-12 00:12:07,631 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:07,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:12:07,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:07,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:07,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:07,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:07,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:07,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:07,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:07,682 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:12:07,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:12:07,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:07,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:12:07,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,685 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:07,685 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:07,687 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,688 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:12:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:07,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:07,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:07,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:07,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:07,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:07,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:07,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:12:07,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803400069] [2021-03-12 00:12:07,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:12:07,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:07,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:12:07,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:12:07,710 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:07,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 719 transitions, 25994 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:07,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:07,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:07,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:10,098 INFO L129 PetriNetUnfolder]: 4320/8214 cut-off events. [2021-03-12 00:12:10,098 INFO L130 PetriNetUnfolder]: For 338371/338386 co-relation queries the response was YES. [2021-03-12 00:12:10,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76847 conditions, 8214 events. 4320/8214 cut-off events. For 338371/338386 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 69422 event pairs, 1237 based on Foata normal form. 4/8218 useless extension candidates. Maximal degree in co-relation 76675. Up to 4902 conditions per place. [2021-03-12 00:12:10,263 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 488 selfloop transitions, 255 changer transitions 5/755 dead transitions. [2021-03-12 00:12:10,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 755 transitions, 28151 flow [2021-03-12 00:12:10,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:12:10,264 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:12:10,264 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:12:10,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:12:10,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:10,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:12:10,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:10,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:10,265 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:10,265 INFO L185 Difference]: Start difference. First operand has 506 places, 719 transitions, 25994 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:12:10,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 755 transitions, 28151 flow [2021-03-12 00:12:11,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 755 transitions, 27819 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:12:11,783 INFO L241 Difference]: Finished difference. Result has 509 places, 718 transitions, 26158 flow [2021-03-12 00:12:11,783 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25662, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26158, PETRI_PLACES=509, PETRI_TRANSITIONS=718} [2021-03-12 00:12:11,783 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 486 predicate places. [2021-03-12 00:12:11,783 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 718 transitions, 26158 flow [2021-03-12 00:12:11,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:11,784 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:11,784 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:11,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589,144 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:11,984 INFO L428 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:11,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1755156702, now seen corresponding path program 34 times [2021-03-12 00:12:11,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:11,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076433597] [2021-03-12 00:12:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:11,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:11,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:11,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:11,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:11,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:11,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:11,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:11,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:12,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:12,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:12,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076433597] [2021-03-12 00:12:12,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532021356] [2021-03-12 00:12:12,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:12,039 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:12:12,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:12,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:12,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:12,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:12,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:12,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:12,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:12,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:12,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:12,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:12,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:12,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:12,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:12,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:12,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:12,109 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:12,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:12,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:12,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:12,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:12:12,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:12,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:12,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:12,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:12:12,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632132221] [2021-03-12 00:12:12,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:12:12,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:12,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:12:12,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:12:12,115 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:12,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 718 transitions, 26158 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:12,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:12,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:12,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:14,550 INFO L129 PetriNetUnfolder]: 4358/8312 cut-off events. [2021-03-12 00:12:14,550 INFO L130 PetriNetUnfolder]: For 345370/345385 co-relation queries the response was YES. [2021-03-12 00:12:14,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77155 conditions, 8312 events. 4358/8312 cut-off events. For 345370/345385 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 70331 event pairs, 1027 based on Foata normal form. 8/8320 useless extension candidates. Maximal degree in co-relation 76982. Up to 5102 conditions per place. [2021-03-12 00:12:14,716 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 536 selfloop transitions, 234 changer transitions 0/777 dead transitions. [2021-03-12 00:12:14,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 777 transitions, 28938 flow [2021-03-12 00:12:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:12:14,717 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:12:14,717 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:12:14,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:12:14,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:14,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:12:14,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:14,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:14,718 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:14,718 INFO L185 Difference]: Start difference. First operand has 509 places, 718 transitions, 26158 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:12:14,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 777 transitions, 28938 flow [2021-03-12 00:12:16,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 777 transitions, 28411 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-12 00:12:16,254 INFO L241 Difference]: Finished difference. Result has 512 places, 727 transitions, 26477 flow [2021-03-12 00:12:16,254 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25631, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26477, PETRI_PLACES=512, PETRI_TRANSITIONS=727} [2021-03-12 00:12:16,254 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 489 predicate places. [2021-03-12 00:12:16,254 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 727 transitions, 26477 flow [2021-03-12 00:12:16,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:16,254 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:16,254 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:16,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable592 [2021-03-12 00:12:16,455 INFO L428 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:16,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:16,455 INFO L82 PathProgramCache]: Analyzing trace with hash -896454925, now seen corresponding path program 35 times [2021-03-12 00:12:16,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:16,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044462958] [2021-03-12 00:12:16,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:16,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:16,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:16,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:16,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:16,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:16,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:16,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:16,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:16,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044462958] [2021-03-12 00:12:16,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:16,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:16,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049337164] [2021-03-12 00:12:16,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:16,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:16,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:16,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:16,488 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:16,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 727 transitions, 26477 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:16,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:16,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:16,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:19,105 INFO L129 PetriNetUnfolder]: 4342/8281 cut-off events. [2021-03-12 00:12:19,106 INFO L130 PetriNetUnfolder]: For 348102/348117 co-relation queries the response was YES. [2021-03-12 00:12:19,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77192 conditions, 8281 events. 4342/8281 cut-off events. For 348102/348117 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 70386 event pairs, 1308 based on Foata normal form. 16/8297 useless extension candidates. Maximal degree in co-relation 77018. Up to 4974 conditions per place. [2021-03-12 00:12:19,247 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 524 selfloop transitions, 226 changer transitions 2/759 dead transitions. [2021-03-12 00:12:19,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 759 transitions, 28497 flow [2021-03-12 00:12:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:12:19,248 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:12:19,248 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:12:19,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:12:19,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:19,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:12:19,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:19,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:19,248 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:19,248 INFO L185 Difference]: Start difference. First operand has 512 places, 727 transitions, 26477 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:12:19,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 759 transitions, 28497 flow [2021-03-12 00:12:20,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 759 transitions, 28092 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-12 00:12:20,555 INFO L241 Difference]: Finished difference. Result has 517 places, 729 transitions, 26598 flow [2021-03-12 00:12:20,555 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26004, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26598, PETRI_PLACES=517, PETRI_TRANSITIONS=729} [2021-03-12 00:12:20,555 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 494 predicate places. [2021-03-12 00:12:20,555 INFO L480 AbstractCegarLoop]: Abstraction has has 517 places, 729 transitions, 26598 flow [2021-03-12 00:12:20,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:20,555 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:20,555 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:20,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2021-03-12 00:12:20,555 INFO L428 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:20,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:20,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1710542918, now seen corresponding path program 35 times [2021-03-12 00:12:20,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:20,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792029478] [2021-03-12 00:12:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:20,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:20,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:20,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:20,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:20,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:20,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:20,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:20,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:20,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792029478] [2021-03-12 00:12:20,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:20,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:20,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890155610] [2021-03-12 00:12:20,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:20,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:20,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:20,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:20,586 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:20,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 729 transitions, 26598 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:20,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:20,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:20,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:23,087 INFO L129 PetriNetUnfolder]: 4244/8056 cut-off events. [2021-03-12 00:12:23,087 INFO L130 PetriNetUnfolder]: For 348826/348841 co-relation queries the response was YES. [2021-03-12 00:12:23,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76485 conditions, 8056 events. 4244/8056 cut-off events. For 348826/348841 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 67525 event pairs, 1005 based on Foata normal form. 32/8088 useless extension candidates. Maximal degree in co-relation 76308. Up to 4256 conditions per place. [2021-03-12 00:12:23,254 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 648 selfloop transitions, 117 changer transitions 3/775 dead transitions. [2021-03-12 00:12:23,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 775 transitions, 28880 flow [2021-03-12 00:12:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:23,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:12:23,255 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:12:23,255 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:12:23,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:12:23,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:23,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:12:23,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:23,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:23,256 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:23,256 INFO L185 Difference]: Start difference. First operand has 517 places, 729 transitions, 26598 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:12:23,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 775 transitions, 28880 flow [2021-03-12 00:12:24,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 775 transitions, 28493 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-12 00:12:24,793 INFO L241 Difference]: Finished difference. Result has 520 places, 723 transitions, 26295 flow [2021-03-12 00:12:24,794 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26065, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26295, PETRI_PLACES=520, PETRI_TRANSITIONS=723} [2021-03-12 00:12:24,794 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 497 predicate places. [2021-03-12 00:12:24,794 INFO L480 AbstractCegarLoop]: Abstraction has has 520 places, 723 transitions, 26295 flow [2021-03-12 00:12:24,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:24,794 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:24,794 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:24,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2021-03-12 00:12:24,794 INFO L428 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:24,794 INFO L82 PathProgramCache]: Analyzing trace with hash -596599588, now seen corresponding path program 36 times [2021-03-12 00:12:24,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:24,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448095939] [2021-03-12 00:12:24,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:24,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:24,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:24,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:24,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:24,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448095939] [2021-03-12 00:12:24,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123458141] [2021-03-12 00:12:24,826 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:24,856 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:12:24,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:24,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:24,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:24,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:24,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:24,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:24,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:24,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:24,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:24,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:24,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:24,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:24,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:24,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:24,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:24,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:24,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:24,914 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:24,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:24,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:24,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:24,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:12:24,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:24,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:24,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:24,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:12:24,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297818957] [2021-03-12 00:12:24,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:12:24,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:12:24,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:12:24,919 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:24,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 723 transitions, 26295 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:24,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:24,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:24,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:27,228 INFO L129 PetriNetUnfolder]: 4200/7922 cut-off events. [2021-03-12 00:12:27,228 INFO L130 PetriNetUnfolder]: For 342321/342336 co-relation queries the response was YES. [2021-03-12 00:12:27,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75549 conditions, 7922 events. 4200/7922 cut-off events. For 342321/342336 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 65771 event pairs, 883 based on Foata normal form. 8/7930 useless extension candidates. Maximal degree in co-relation 75370. Up to 3780 conditions per place. [2021-03-12 00:12:27,376 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 495 selfloop transitions, 277 changer transitions 0/779 dead transitions. [2021-03-12 00:12:27,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 779 transitions, 28937 flow [2021-03-12 00:12:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:27,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:12:27,377 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:12:27,377 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:12:27,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:12:27,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:27,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:12:27,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:27,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:27,378 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:27,378 INFO L185 Difference]: Start difference. First operand has 520 places, 723 transitions, 26295 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:12:27,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 779 transitions, 28937 flow [2021-03-12 00:12:28,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 779 transitions, 28638 flow, removed 54 selfloop flow, removed 4 redundant places. [2021-03-12 00:12:28,918 INFO L241 Difference]: Finished difference. Result has 523 places, 730 transitions, 26890 flow [2021-03-12 00:12:28,918 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25964, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26890, PETRI_PLACES=523, PETRI_TRANSITIONS=730} [2021-03-12 00:12:28,918 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 500 predicate places. [2021-03-12 00:12:28,918 INFO L480 AbstractCegarLoop]: Abstraction has has 523 places, 730 transitions, 26890 flow [2021-03-12 00:12:28,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:28,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:28,918 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:29,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 146 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable595 [2021-03-12 00:12:29,119 INFO L428 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:29,119 INFO L82 PathProgramCache]: Analyzing trace with hash -906584276, now seen corresponding path program 37 times [2021-03-12 00:12:29,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:29,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072205442] [2021-03-12 00:12:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:29,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:29,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:29,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072205442] [2021-03-12 00:12:29,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729781316] [2021-03-12 00:12:29,148 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:29,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:29,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:29,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:29,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:29,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:29,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:29,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:29,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:29,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,204 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:29,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:29,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:29,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:29,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,207 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:29,207 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,208 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:29,209 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:12:29,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:29,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:29,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:29,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:29,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:29,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:29,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:12:29,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025740680] [2021-03-12 00:12:29,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:12:29,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:29,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:12:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:12:29,228 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:29,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 730 transitions, 26890 flow. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:29,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:29,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:29,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:31,707 INFO L129 PetriNetUnfolder]: 4162/7802 cut-off events. [2021-03-12 00:12:31,707 INFO L130 PetriNetUnfolder]: For 351272/351287 co-relation queries the response was YES. [2021-03-12 00:12:31,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75520 conditions, 7802 events. 4162/7802 cut-off events. For 351272/351287 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 64176 event pairs, 845 based on Foata normal form. 14/7816 useless extension candidates. Maximal degree in co-relation 75340. Up to 3780 conditions per place. [2021-03-12 00:12:31,841 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 490 selfloop transitions, 269 changer transitions 7/773 dead transitions. [2021-03-12 00:12:31,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 773 transitions, 29122 flow [2021-03-12 00:12:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:31,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:12:31,843 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:12:31,843 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:12:31,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:12:31,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:31,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:12:31,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:31,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:31,843 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:31,843 INFO L185 Difference]: Start difference. First operand has 523 places, 730 transitions, 26890 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:12:31,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 773 transitions, 29122 flow [2021-03-12 00:12:33,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 773 transitions, 28617 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:12:33,190 INFO L241 Difference]: Finished difference. Result has 525 places, 724 transitions, 26744 flow [2021-03-12 00:12:33,191 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26257, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26744, PETRI_PLACES=525, PETRI_TRANSITIONS=724} [2021-03-12 00:12:33,191 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 502 predicate places. [2021-03-12 00:12:33,191 INFO L480 AbstractCegarLoop]: Abstraction has has 525 places, 724 transitions, 26744 flow [2021-03-12 00:12:33,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:33,191 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:33,191 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:33,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable596 [2021-03-12 00:12:33,392 INFO L428 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:33,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:33,392 INFO L82 PathProgramCache]: Analyzing trace with hash 785991578, now seen corresponding path program 38 times [2021-03-12 00:12:33,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:33,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173085385] [2021-03-12 00:12:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:33,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:33,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:33,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:12:33,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:33,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:33,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:33,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:33,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:33,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173085385] [2021-03-12 00:12:33,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:33,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:33,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269901472] [2021-03-12 00:12:33,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:33,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:33,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:33,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:33,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:33,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 724 transitions, 26744 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:33,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:33,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:33,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:35,829 INFO L129 PetriNetUnfolder]: 4150/7864 cut-off events. [2021-03-12 00:12:35,829 INFO L130 PetriNetUnfolder]: For 354570/354594 co-relation queries the response was YES. [2021-03-12 00:12:35,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75299 conditions, 7864 events. 4150/7864 cut-off events. For 354570/354594 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 65575 event pairs, 991 based on Foata normal form. 8/7872 useless extension candidates. Maximal degree in co-relation 75120. Up to 5086 conditions per place. [2021-03-12 00:12:35,996 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 545 selfloop transitions, 203 changer transitions 1/756 dead transitions. [2021-03-12 00:12:35,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 756 transitions, 28801 flow [2021-03-12 00:12:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:35,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:12:35,997 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:12:35,997 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:12:35,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:12:35,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:35,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:12:35,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:35,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:35,998 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:35,998 INFO L185 Difference]: Start difference. First operand has 525 places, 724 transitions, 26744 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:12:35,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 756 transitions, 28801 flow [2021-03-12 00:12:37,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 756 transitions, 28257 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:12:37,693 INFO L241 Difference]: Finished difference. Result has 527 places, 723 transitions, 26560 flow [2021-03-12 00:12:37,693 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26162, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26560, PETRI_PLACES=527, PETRI_TRANSITIONS=723} [2021-03-12 00:12:37,693 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 504 predicate places. [2021-03-12 00:12:37,693 INFO L480 AbstractCegarLoop]: Abstraction has has 527 places, 723 transitions, 26560 flow [2021-03-12 00:12:37,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:37,693 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:37,693 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:37,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2021-03-12 00:12:37,693 INFO L428 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:37,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1907542517, now seen corresponding path program 36 times [2021-03-12 00:12:37,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:37,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354225248] [2021-03-12 00:12:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:37,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:37,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:37,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:37,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:37,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:37,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:37,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:37,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:37,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354225248] [2021-03-12 00:12:37,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:37,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:37,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7734930] [2021-03-12 00:12:37,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:37,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:37,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:37,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:37,740 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:37,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 723 transitions, 26560 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:37,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:37,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:37,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:40,185 INFO L129 PetriNetUnfolder]: 4143/7804 cut-off events. [2021-03-12 00:12:40,185 INFO L130 PetriNetUnfolder]: For 354975/354999 co-relation queries the response was YES. [2021-03-12 00:12:40,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75321 conditions, 7804 events. 4143/7804 cut-off events. For 354975/354999 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 64903 event pairs, 1158 based on Foata normal form. 8/7812 useless extension candidates. Maximal degree in co-relation 75140. Up to 4654 conditions per place. [2021-03-12 00:12:40,339 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 516 selfloop transitions, 226 changer transitions 2/751 dead transitions. [2021-03-12 00:12:40,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 751 transitions, 28493 flow [2021-03-12 00:12:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:12:40,341 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:12:40,341 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:12:40,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:12:40,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:40,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:12:40,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:40,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:40,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:40,341 INFO L185 Difference]: Start difference. First operand has 527 places, 723 transitions, 26560 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:12:40,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 751 transitions, 28493 flow [2021-03-12 00:12:41,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 751 transitions, 28080 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:12:41,857 INFO L241 Difference]: Finished difference. Result has 526 places, 719 transitions, 26451 flow [2021-03-12 00:12:41,858 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26099, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26451, PETRI_PLACES=526, PETRI_TRANSITIONS=719} [2021-03-12 00:12:41,858 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 503 predicate places. [2021-03-12 00:12:41,858 INFO L480 AbstractCegarLoop]: Abstraction has has 526 places, 719 transitions, 26451 flow [2021-03-12 00:12:41,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:41,858 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:41,858 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:41,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2021-03-12 00:12:41,858 INFO L428 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:41,858 INFO L82 PathProgramCache]: Analyzing trace with hash -322554212, now seen corresponding path program 39 times [2021-03-12 00:12:41,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:41,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899217908] [2021-03-12 00:12:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:41,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:41,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:41,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:41,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899217908] [2021-03-12 00:12:41,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707243842] [2021-03-12 00:12:41,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:41,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:12:41,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:41,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:41,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:41,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:41,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:41,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:41,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:41,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:41,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:41,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:41,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:41,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:41,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:41,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:41,958 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:41,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:41,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:41,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:41,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:12:41,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:41,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:41,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:41,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:12:41,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020775087] [2021-03-12 00:12:41,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:12:41,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:41,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:12:41,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:12:41,964 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:41,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 719 transitions, 26451 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:41,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:41,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:41,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:44,554 INFO L129 PetriNetUnfolder]: 4410/8319 cut-off events. [2021-03-12 00:12:44,554 INFO L130 PetriNetUnfolder]: For 359810/359834 co-relation queries the response was YES. [2021-03-12 00:12:44,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78676 conditions, 8319 events. 4410/8319 cut-off events. For 359810/359834 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 69638 event pairs, 954 based on Foata normal form. 20/8339 useless extension candidates. Maximal degree in co-relation 78496. Up to 4204 conditions per place. [2021-03-12 00:12:44,709 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 568 selfloop transitions, 215 changer transitions 0/790 dead transitions. [2021-03-12 00:12:44,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 790 transitions, 29579 flow [2021-03-12 00:12:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:44,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:12:44,711 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:12:44,711 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:12:44,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:12:44,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:44,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:12:44,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:44,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:44,711 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:44,711 INFO L185 Difference]: Start difference. First operand has 526 places, 719 transitions, 26451 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:12:44,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 790 transitions, 29579 flow [2021-03-12 00:12:46,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 790 transitions, 29120 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:12:46,358 INFO L241 Difference]: Finished difference. Result has 528 places, 731 transitions, 26944 flow [2021-03-12 00:12:46,358 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25992, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26944, PETRI_PLACES=528, PETRI_TRANSITIONS=731} [2021-03-12 00:12:46,358 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 505 predicate places. [2021-03-12 00:12:46,358 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 731 transitions, 26944 flow [2021-03-12 00:12:46,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:46,358 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:46,358 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:46,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601,148 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:46,559 INFO L428 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:46,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:46,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1286910965, now seen corresponding path program 37 times [2021-03-12 00:12:46,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:46,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033944102] [2021-03-12 00:12:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:46,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:46,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:46,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:46,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:46,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:46,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:46,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:46,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033944102] [2021-03-12 00:12:46,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:46,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:46,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710832107] [2021-03-12 00:12:46,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:46,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:46,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:46,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:46,587 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:46,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 731 transitions, 26944 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:46,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:46,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:46,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:49,370 INFO L129 PetriNetUnfolder]: 4406/8326 cut-off events. [2021-03-12 00:12:49,370 INFO L130 PetriNetUnfolder]: For 362557/362581 co-relation queries the response was YES. [2021-03-12 00:12:49,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78714 conditions, 8326 events. 4406/8326 cut-off events. For 362557/362581 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 70243 event pairs, 1289 based on Foata normal form. 6/8332 useless extension candidates. Maximal degree in co-relation 78531. Up to 5082 conditions per place. [2021-03-12 00:12:49,508 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 515 selfloop transitions, 233 changer transitions 4/759 dead transitions. [2021-03-12 00:12:49,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 759 transitions, 28907 flow [2021-03-12 00:12:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2021-03-12 00:12:49,509 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.763265306122449 [2021-03-12 00:12:49,509 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 187 transitions. [2021-03-12 00:12:49,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 187 transitions. [2021-03-12 00:12:49,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:49,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 187 transitions. [2021-03-12 00:12:49,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:49,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:49,509 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:49,509 INFO L185 Difference]: Start difference. First operand has 528 places, 731 transitions, 26944 flow. Second operand 7 states and 187 transitions. [2021-03-12 00:12:49,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 759 transitions, 28907 flow [2021-03-12 00:12:50,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 759 transitions, 28481 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-12 00:12:50,932 INFO L241 Difference]: Finished difference. Result has 530 places, 727 transitions, 26848 flow [2021-03-12 00:12:50,932 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26492, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26848, PETRI_PLACES=530, PETRI_TRANSITIONS=727} [2021-03-12 00:12:50,933 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 507 predicate places. [2021-03-12 00:12:50,933 INFO L480 AbstractCegarLoop]: Abstraction has has 530 places, 727 transitions, 26848 flow [2021-03-12 00:12:50,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:50,933 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:50,933 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:50,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2021-03-12 00:12:50,933 INFO L428 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:50,933 INFO L82 PathProgramCache]: Analyzing trace with hash 781468858, now seen corresponding path program 40 times [2021-03-12 00:12:50,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:50,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362276540] [2021-03-12 00:12:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:50,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:12:50,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:50,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362276540] [2021-03-12 00:12:50,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147171141] [2021-03-12 00:12:50,965 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:50,984 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:12:50,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:50,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:50,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:50,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:50,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:50,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:50,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:50,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:50,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:50,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,013 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:51,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:51,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:12:51,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:51,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,016 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:51,016 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,018 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:12:51,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,018 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:12:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:51,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:51,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:51,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:51,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:51,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:51,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:12:51,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125420894] [2021-03-12 00:12:51,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:12:51,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:51,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:12:51,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:12:51,037 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:51,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 727 transitions, 26848 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:51,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:51,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:51,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:53,609 INFO L129 PetriNetUnfolder]: 4354/8173 cut-off events. [2021-03-12 00:12:53,609 INFO L130 PetriNetUnfolder]: For 358460/358484 co-relation queries the response was YES. [2021-03-12 00:12:53,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77742 conditions, 8173 events. 4354/8173 cut-off events. For 358460/358484 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 67880 event pairs, 959 based on Foata normal form. 22/8195 useless extension candidates. Maximal degree in co-relation 77559. Up to 4204 conditions per place. [2021-03-12 00:12:53,757 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 559 selfloop transitions, 211 changer transitions 3/780 dead transitions. [2021-03-12 00:12:53,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 780 transitions, 29360 flow [2021-03-12 00:12:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:53,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:53,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:12:53,758 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:12:53,758 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:12:53,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:12:53,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:53,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:12:53,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:53,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:53,758 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:53,758 INFO L185 Difference]: Start difference. First operand has 530 places, 727 transitions, 26848 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:12:53,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 780 transitions, 29360 flow [2021-03-12 00:12:55,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 780 transitions, 28884 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-12 00:12:55,224 INFO L241 Difference]: Finished difference. Result has 527 places, 725 transitions, 26771 flow [2021-03-12 00:12:55,224 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26276, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=724, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26771, PETRI_PLACES=527, PETRI_TRANSITIONS=725} [2021-03-12 00:12:55,224 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 504 predicate places. [2021-03-12 00:12:55,224 INFO L480 AbstractCegarLoop]: Abstraction has has 527 places, 725 transitions, 26771 flow [2021-03-12 00:12:55,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:55,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:55,225 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:55,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603,149 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:55,425 INFO L428 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:55,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:55,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1491614465, now seen corresponding path program 38 times [2021-03-12 00:12:55,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:55,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019307110] [2021-03-12 00:12:55,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:55,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:55,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:12:55,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:55,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:55,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:55,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:55,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:55,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:55,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019307110] [2021-03-12 00:12:55,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:12:55,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:12:55,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625806393] [2021-03-12 00:12:55,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:12:55,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:55,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:12:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:12:55,456 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:55,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 725 transitions, 26771 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:55,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:55,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:55,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:12:57,920 INFO L129 PetriNetUnfolder]: 4340/8180 cut-off events. [2021-03-12 00:12:57,921 INFO L130 PetriNetUnfolder]: For 358730/358754 co-relation queries the response was YES. [2021-03-12 00:12:58,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77475 conditions, 8180 events. 4340/8180 cut-off events. For 358730/358754 co-relation queries the response was YES. Maximal size of possible extension queue 758. Compared 68630 event pairs, 1264 based on Foata normal form. 8/8188 useless extension candidates. Maximal degree in co-relation 77293. Up to 4984 conditions per place. [2021-03-12 00:12:58,084 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 519 selfloop transitions, 224 changer transitions 2/752 dead transitions. [2021-03-12 00:12:58,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 752 transitions, 28641 flow [2021-03-12 00:12:58,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:12:58,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:12:58,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:12:58,085 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:12:58,085 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:12:58,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:12:58,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:12:58,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:12:58,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:58,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:58,085 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:58,085 INFO L185 Difference]: Start difference. First operand has 527 places, 725 transitions, 26771 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:12:58,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 752 transitions, 28641 flow [2021-03-12 00:12:59,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 752 transitions, 28189 flow, removed 22 selfloop flow, removed 5 redundant places. [2021-03-12 00:12:59,614 INFO L241 Difference]: Finished difference. Result has 527 places, 721 transitions, 26608 flow [2021-03-12 00:12:59,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26273, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26608, PETRI_PLACES=527, PETRI_TRANSITIONS=721} [2021-03-12 00:12:59,615 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 504 predicate places. [2021-03-12 00:12:59,615 INFO L480 AbstractCegarLoop]: Abstraction has has 527 places, 721 transitions, 26608 flow [2021-03-12 00:12:59,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:59,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:12:59,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:12:59,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2021-03-12 00:12:59,615 INFO L428 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:12:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:12:59,615 INFO L82 PathProgramCache]: Analyzing trace with hash -741999640, now seen corresponding path program 41 times [2021-03-12 00:12:59,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:12:59,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245170141] [2021-03-12 00:12:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:12:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:12:59,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:12:59,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:59,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245170141] [2021-03-12 00:12:59,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122219535] [2021-03-12 00:12:59,644 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:12:59,664 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:12:59,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:12:59,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:12:59,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:12:59,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:59,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:59,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:12:59,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:12:59,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:59,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:59,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:12:59,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:12:59,702 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:12:59,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:12:59,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:12:59,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:12:59,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:12:59,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:12:59,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:12:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:12:59,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:12:59,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:12:59,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209257571] [2021-03-12 00:12:59,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:12:59,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:12:59,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:12:59,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:12:59,710 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:12:59,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 721 transitions, 26608 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:12:59,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:12:59,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:12:59,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:02,405 INFO L129 PetriNetUnfolder]: 4323/8100 cut-off events. [2021-03-12 00:13:02,405 INFO L130 PetriNetUnfolder]: For 354701/354716 co-relation queries the response was YES. [2021-03-12 00:13:02,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76979 conditions, 8100 events. 4323/8100 cut-off events. For 354701/354716 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 66970 event pairs, 952 based on Foata normal form. 8/8108 useless extension candidates. Maximal degree in co-relation 76798. Up to 4204 conditions per place. [2021-03-12 00:13:02,540 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 534 selfloop transitions, 230 changer transitions 0/771 dead transitions. [2021-03-12 00:13:02,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 771 transitions, 29019 flow [2021-03-12 00:13:02,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:13:02,541 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:13:02,541 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:13:02,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:13:02,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:02,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:13:02,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:02,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:02,542 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:02,542 INFO L185 Difference]: Start difference. First operand has 527 places, 721 transitions, 26608 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:13:02,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 771 transitions, 29019 flow [2021-03-12 00:13:03,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 771 transitions, 28554 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-12 00:13:03,926 INFO L241 Difference]: Finished difference. Result has 525 places, 719 transitions, 26544 flow [2021-03-12 00:13:03,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26084, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26544, PETRI_PLACES=525, PETRI_TRANSITIONS=719} [2021-03-12 00:13:03,927 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 502 predicate places. [2021-03-12 00:13:03,927 INFO L480 AbstractCegarLoop]: Abstraction has has 525 places, 719 transitions, 26544 flow [2021-03-12 00:13:03,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:03,927 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:03,927 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:04,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607,150 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:04,127 INFO L428 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:04,128 INFO L82 PathProgramCache]: Analyzing trace with hash 619566833, now seen corresponding path program 39 times [2021-03-12 00:13:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:04,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289338003] [2021-03-12 00:13:04,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:04,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:04,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:04,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:04,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:04,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:04,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:04,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:04,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289338003] [2021-03-12 00:13:04,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:04,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:04,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12804898] [2021-03-12 00:13:04,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:04,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:04,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:04,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:04,163 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:04,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 719 transitions, 26544 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:04,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:04,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:04,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:06,690 INFO L129 PetriNetUnfolder]: 4319/8133 cut-off events. [2021-03-12 00:13:06,691 INFO L130 PetriNetUnfolder]: For 356071/356086 co-relation queries the response was YES. [2021-03-12 00:13:06,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76901 conditions, 8133 events. 4319/8133 cut-off events. For 356071/356086 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 68044 event pairs, 1248 based on Foata normal form. 2/8135 useless extension candidates. Maximal degree in co-relation 76720. Up to 4952 conditions per place. [2021-03-12 00:13:06,848 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 506 selfloop transitions, 229 changer transitions 4/746 dead transitions. [2021-03-12 00:13:06,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 746 transitions, 28392 flow [2021-03-12 00:13:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2021-03-12 00:13:06,849 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.763265306122449 [2021-03-12 00:13:06,849 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 187 transitions. [2021-03-12 00:13:06,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 187 transitions. [2021-03-12 00:13:06,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:06,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 187 transitions. [2021-03-12 00:13:06,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:06,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:06,850 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:06,850 INFO L185 Difference]: Start difference. First operand has 525 places, 719 transitions, 26544 flow. Second operand 7 states and 187 transitions. [2021-03-12 00:13:06,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 746 transitions, 28392 flow [2021-03-12 00:13:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 746 transitions, 27955 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-12 00:13:08,253 INFO L241 Difference]: Finished difference. Result has 524 places, 715 transitions, 26399 flow [2021-03-12 00:13:08,253 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26059, PETRI_DIFFERENCE_MINUEND_PLACES=518, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26399, PETRI_PLACES=524, PETRI_TRANSITIONS=715} [2021-03-12 00:13:08,253 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 501 predicate places. [2021-03-12 00:13:08,253 INFO L480 AbstractCegarLoop]: Abstraction has has 524 places, 715 transitions, 26399 flow [2021-03-12 00:13:08,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:08,253 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:08,253 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:08,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2021-03-12 00:13:08,253 INFO L428 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:08,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:08,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1931236182, now seen corresponding path program 42 times [2021-03-12 00:13:08,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:08,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549332485] [2021-03-12 00:13:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:08,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:08,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:08,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:08,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:08,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:08,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:08,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:08,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:08,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549332485] [2021-03-12 00:13:08,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:08,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:08,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180150767] [2021-03-12 00:13:08,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:08,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:08,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:08,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:08,285 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:08,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 715 transitions, 26399 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:08,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:08,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:08,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:11,296 INFO L129 PetriNetUnfolder]: 4297/8110 cut-off events. [2021-03-12 00:13:11,296 INFO L130 PetriNetUnfolder]: For 354338/354353 co-relation queries the response was YES. [2021-03-12 00:13:11,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76550 conditions, 8110 events. 4297/8110 cut-off events. For 354338/354353 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 67737 event pairs, 1067 based on Foata normal form. 20/8130 useless extension candidates. Maximal degree in co-relation 76370. Up to 5303 conditions per place. [2021-03-12 00:13:11,493 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 543 selfloop transitions, 199 changer transitions 2/751 dead transitions. [2021-03-12 00:13:11,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 751 transitions, 28503 flow [2021-03-12 00:13:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:13:11,495 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:13:11,495 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:13:11,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:13:11,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:11,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:13:11,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:11,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:11,495 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:11,495 INFO L185 Difference]: Start difference. First operand has 524 places, 715 transitions, 26399 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:13:11,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 751 transitions, 28503 flow [2021-03-12 00:13:12,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 751 transitions, 28051 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-12 00:13:12,838 INFO L241 Difference]: Finished difference. Result has 524 places, 714 transitions, 26331 flow [2021-03-12 00:13:12,838 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25947, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26331, PETRI_PLACES=524, PETRI_TRANSITIONS=714} [2021-03-12 00:13:12,838 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 501 predicate places. [2021-03-12 00:13:12,838 INFO L480 AbstractCegarLoop]: Abstraction has has 524 places, 714 transitions, 26331 flow [2021-03-12 00:13:12,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:12,838 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:12,838 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:12,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-12 00:13:12,838 INFO L428 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:12,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:12,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1516560799, now seen corresponding path program 40 times [2021-03-12 00:13:12,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:12,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806935152] [2021-03-12 00:13:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:12,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:12,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:12,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:12,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:12,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:12,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:12,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:12,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806935152] [2021-03-12 00:13:12,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:12,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:12,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495320722] [2021-03-12 00:13:12,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:12,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:12,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:12,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:12,868 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:12,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 714 transitions, 26331 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:12,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:12,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:12,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:15,781 INFO L129 PetriNetUnfolder]: 4327/8152 cut-off events. [2021-03-12 00:13:15,782 INFO L130 PetriNetUnfolder]: For 362757/362772 co-relation queries the response was YES. [2021-03-12 00:13:15,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77485 conditions, 8152 events. 4327/8152 cut-off events. For 362757/362772 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 68230 event pairs, 1245 based on Foata normal form. 4/8156 useless extension candidates. Maximal degree in co-relation 77304. Up to 4928 conditions per place. [2021-03-12 00:13:15,924 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 510 selfloop transitions, 229 changer transitions 5/751 dead transitions. [2021-03-12 00:13:15,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 751 transitions, 28423 flow [2021-03-12 00:13:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:13:15,925 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:13:15,925 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:13:15,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:13:15,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:15,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:13:15,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:15,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:15,926 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:15,926 INFO L185 Difference]: Start difference. First operand has 524 places, 714 transitions, 26331 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:13:15,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 751 transitions, 28423 flow [2021-03-12 00:13:17,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 751 transitions, 28208 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-12 00:13:17,424 INFO L241 Difference]: Finished difference. Result has 529 places, 714 transitions, 26546 flow [2021-03-12 00:13:17,424 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26058, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26546, PETRI_PLACES=529, PETRI_TRANSITIONS=714} [2021-03-12 00:13:17,424 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 506 predicate places. [2021-03-12 00:13:17,424 INFO L480 AbstractCegarLoop]: Abstraction has has 529 places, 714 transitions, 26546 flow [2021-03-12 00:13:17,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:17,425 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:17,425 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:17,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2021-03-12 00:13:17,425 INFO L428 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:17,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:17,425 INFO L82 PathProgramCache]: Analyzing trace with hash -864198122, now seen corresponding path program 43 times [2021-03-12 00:13:17,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:17,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897768144] [2021-03-12 00:13:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:17,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:17,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:17,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:17,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897768144] [2021-03-12 00:13:17,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288650289] [2021-03-12 00:13:17,461 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:17,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:13:17,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:13:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:13:17,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:13:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:17,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,532 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:13:17,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:13:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,535 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:13:17,537 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,539 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:13:17,539 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,540 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:13:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:13:17,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:17,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:13:17,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:13:17,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397117775] [2021-03-12 00:13:17,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:13:17,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:17,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:13:17,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:13:17,562 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:17,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 714 transitions, 26546 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:17,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:17,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:17,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:20,507 INFO L129 PetriNetUnfolder]: 4314/8166 cut-off events. [2021-03-12 00:13:20,507 INFO L130 PetriNetUnfolder]: For 372316/372331 co-relation queries the response was YES. [2021-03-12 00:13:20,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78086 conditions, 8166 events. 4314/8166 cut-off events. For 372316/372331 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 68434 event pairs, 1043 based on Foata normal form. 4/8170 useless extension candidates. Maximal degree in co-relation 77904. Up to 5364 conditions per place. [2021-03-12 00:13:20,736 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 518 selfloop transitions, 224 changer transitions 4/753 dead transitions. [2021-03-12 00:13:20,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 753 transitions, 28770 flow [2021-03-12 00:13:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:20,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:13:20,737 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:13:20,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:13:20,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:13:20,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:20,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:13:20,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:20,738 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:20,738 INFO L185 Difference]: Start difference. First operand has 529 places, 714 transitions, 26546 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:13:20,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 753 transitions, 28770 flow [2021-03-12 00:13:22,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 753 transitions, 28325 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-12 00:13:22,246 INFO L241 Difference]: Finished difference. Result has 531 places, 712 transitions, 26494 flow [2021-03-12 00:13:22,246 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26038, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26494, PETRI_PLACES=531, PETRI_TRANSITIONS=712} [2021-03-12 00:13:22,246 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 508 predicate places. [2021-03-12 00:13:22,246 INFO L480 AbstractCegarLoop]: Abstraction has has 531 places, 712 transitions, 26494 flow [2021-03-12 00:13:22,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:22,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:22,246 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:22,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable611 [2021-03-12 00:13:22,447 INFO L428 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:22,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:22,447 INFO L82 PathProgramCache]: Analyzing trace with hash -41838719, now seen corresponding path program 41 times [2021-03-12 00:13:22,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:22,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845598187] [2021-03-12 00:13:22,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:22,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:22,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:22,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:22,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:22,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:22,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:22,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:22,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845598187] [2021-03-12 00:13:22,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:22,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:22,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185419999] [2021-03-12 00:13:22,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:22,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:22,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:22,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:22,478 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:22,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 712 transitions, 26494 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:22,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:22,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:22,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:25,250 INFO L129 PetriNetUnfolder]: 4307/8103 cut-off events. [2021-03-12 00:13:25,250 INFO L130 PetriNetUnfolder]: For 373672/373687 co-relation queries the response was YES. [2021-03-12 00:13:25,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77837 conditions, 8103 events. 4307/8103 cut-off events. For 373672/373687 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 67737 event pairs, 1243 based on Foata normal form. 4/8107 useless extension candidates. Maximal degree in co-relation 77654. Up to 4901 conditions per place. [2021-03-12 00:13:25,389 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 517 selfloop transitions, 215 changer transitions 1/740 dead transitions. [2021-03-12 00:13:25,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 740 transitions, 28436 flow [2021-03-12 00:13:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:13:25,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:13:25,390 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:13:25,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:13:25,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:25,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:13:25,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:25,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:25,391 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:25,391 INFO L185 Difference]: Start difference. First operand has 531 places, 712 transitions, 26494 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:13:25,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 740 transitions, 28436 flow [2021-03-12 00:13:26,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 740 transitions, 28106 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-12 00:13:26,921 INFO L241 Difference]: Finished difference. Result has 532 places, 710 transitions, 26528 flow [2021-03-12 00:13:26,921 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26139, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26528, PETRI_PLACES=532, PETRI_TRANSITIONS=710} [2021-03-12 00:13:26,921 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 509 predicate places. [2021-03-12 00:13:26,921 INFO L480 AbstractCegarLoop]: Abstraction has has 532 places, 710 transitions, 26528 flow [2021-03-12 00:13:26,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:26,921 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:26,921 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:26,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2021-03-12 00:13:26,922 INFO L428 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash 317416622, now seen corresponding path program 44 times [2021-03-12 00:13:26,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:26,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826419156] [2021-03-12 00:13:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:26,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:26,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:26,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:26,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:26,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:26,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:26,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:26,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:26,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826419156] [2021-03-12 00:13:26,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:26,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:26,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339420802] [2021-03-12 00:13:26,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:26,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:26,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:26,959 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:26,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 710 transitions, 26528 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:26,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:26,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:26,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:29,884 INFO L129 PetriNetUnfolder]: 4290/8093 cut-off events. [2021-03-12 00:13:29,884 INFO L130 PetriNetUnfolder]: For 381337/381352 co-relation queries the response was YES. [2021-03-12 00:13:29,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78211 conditions, 8093 events. 4290/8093 cut-off events. For 381337/381352 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 67475 event pairs, 1114 based on Foata normal form. 8/8101 useless extension candidates. Maximal degree in co-relation 78027. Up to 5357 conditions per place. [2021-03-12 00:13:30,018 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 539 selfloop transitions, 194 changer transitions 3/743 dead transitions. [2021-03-12 00:13:30,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 743 transitions, 28546 flow [2021-03-12 00:13:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:13:30,019 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:13:30,019 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:13:30,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:13:30,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:30,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:13:30,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:30,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:30,020 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:30,020 INFO L185 Difference]: Start difference. First operand has 532 places, 710 transitions, 26528 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:13:30,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 743 transitions, 28546 flow [2021-03-12 00:13:31,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 743 transitions, 28174 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:13:31,516 INFO L241 Difference]: Finished difference. Result has 535 places, 707 transitions, 26442 flow [2021-03-12 00:13:31,516 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26079, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26442, PETRI_PLACES=535, PETRI_TRANSITIONS=707} [2021-03-12 00:13:31,516 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 512 predicate places. [2021-03-12 00:13:31,516 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 707 transitions, 26442 flow [2021-03-12 00:13:31,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:31,516 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:31,516 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:31,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2021-03-12 00:13:31,516 INFO L428 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash -2092034641, now seen corresponding path program 42 times [2021-03-12 00:13:31,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:31,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885255978] [2021-03-12 00:13:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:31,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:31,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:31,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:31,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:31,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:31,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:31,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:31,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:31,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885255978] [2021-03-12 00:13:31,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:31,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:31,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981865276] [2021-03-12 00:13:31,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:31,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:31,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:31,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:31,554 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:31,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 707 transitions, 26442 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:31,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:31,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:31,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:34,426 INFO L129 PetriNetUnfolder]: 4272/8004 cut-off events. [2021-03-12 00:13:34,426 INFO L130 PetriNetUnfolder]: For 377108/377123 co-relation queries the response was YES. [2021-03-12 00:13:34,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77174 conditions, 8004 events. 4272/8004 cut-off events. For 377108/377123 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 66471 event pairs, 1303 based on Foata normal form. 8/8012 useless extension candidates. Maximal degree in co-relation 76989. Up to 4869 conditions per place. [2021-03-12 00:13:34,568 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 512 selfloop transitions, 210 changer transitions 3/732 dead transitions. [2021-03-12 00:13:34,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 732 transitions, 28276 flow [2021-03-12 00:13:34,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:34,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:13:34,569 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:13:34,569 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:13:34,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:13:34,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:34,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:13:34,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:34,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:34,569 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:34,570 INFO L185 Difference]: Start difference. First operand has 535 places, 707 transitions, 26442 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:13:34,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 732 transitions, 28276 flow [2021-03-12 00:13:36,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 732 transitions, 27838 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-12 00:13:36,089 INFO L241 Difference]: Finished difference. Result has 534 places, 703 transitions, 26315 flow [2021-03-12 00:13:36,090 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25959, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26315, PETRI_PLACES=534, PETRI_TRANSITIONS=703} [2021-03-12 00:13:36,090 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 511 predicate places. [2021-03-12 00:13:36,090 INFO L480 AbstractCegarLoop]: Abstraction has has 534 places, 703 transitions, 26315 flow [2021-03-12 00:13:36,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:36,090 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:36,090 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:36,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2021-03-12 00:13:36,090 INFO L428 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 387669560, now seen corresponding path program 45 times [2021-03-12 00:13:36,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:36,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359181206] [2021-03-12 00:13:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:36,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:36,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:36,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:36,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:36,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:36,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:36,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:36,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:36,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359181206] [2021-03-12 00:13:36,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:36,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:36,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340233098] [2021-03-12 00:13:36,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:36,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:36,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:36,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:36,123 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:36,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 703 transitions, 26315 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:36,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:36,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:36,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:38,849 INFO L129 PetriNetUnfolder]: 4262/8010 cut-off events. [2021-03-12 00:13:38,849 INFO L130 PetriNetUnfolder]: For 370477/370492 co-relation queries the response was YES. [2021-03-12 00:13:38,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76541 conditions, 8010 events. 4262/8010 cut-off events. For 370477/370492 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 66344 event pairs, 1091 based on Foata normal form. 4/8014 useless extension candidates. Maximal degree in co-relation 76354. Up to 5319 conditions per place. [2021-03-12 00:13:39,016 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 525 selfloop transitions, 200 changer transitions 2/734 dead transitions. [2021-03-12 00:13:39,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 734 transitions, 28296 flow [2021-03-12 00:13:39,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:39,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:13:39,017 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:13:39,017 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:13:39,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:13:39,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:39,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:13:39,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:39,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:39,018 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:39,018 INFO L185 Difference]: Start difference. First operand has 534 places, 703 transitions, 26315 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:13:39,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 734 transitions, 28296 flow [2021-03-12 00:13:40,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 734 transitions, 28035 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-12 00:13:40,602 INFO L241 Difference]: Finished difference. Result has 537 places, 701 transitions, 26412 flow [2021-03-12 00:13:40,602 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26013, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26412, PETRI_PLACES=537, PETRI_TRANSITIONS=701} [2021-03-12 00:13:40,602 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 514 predicate places. [2021-03-12 00:13:40,602 INFO L480 AbstractCegarLoop]: Abstraction has has 537 places, 701 transitions, 26412 flow [2021-03-12 00:13:40,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:40,602 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:40,602 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:40,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2021-03-12 00:13:40,602 INFO L428 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:40,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:40,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2145256355, now seen corresponding path program 43 times [2021-03-12 00:13:40,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:40,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185335633] [2021-03-12 00:13:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:40,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:40,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:40,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:40,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:40,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:40,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:40,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:40,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:40,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185335633] [2021-03-12 00:13:40,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:13:40,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:13:40,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673224786] [2021-03-12 00:13:40,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:13:40,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:40,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:13:40,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:13:40,636 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:40,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 701 transitions, 26412 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:40,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:40,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:40,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:43,455 INFO L129 PetriNetUnfolder]: 4248/7938 cut-off events. [2021-03-12 00:13:43,455 INFO L130 PetriNetUnfolder]: For 378836/378851 co-relation queries the response was YES. [2021-03-12 00:13:43,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76335 conditions, 7938 events. 4248/7938 cut-off events. For 378836/378851 co-relation queries the response was YES. Maximal size of possible extension queue 740. Compared 65641 event pairs, 1289 based on Foata normal form. 6/7944 useless extension candidates. Maximal degree in co-relation 76147. Up to 4850 conditions per place. [2021-03-12 00:13:43,603 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 505 selfloop transitions, 210 changer transitions 1/723 dead transitions. [2021-03-12 00:13:43,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 723 transitions, 28174 flow [2021-03-12 00:13:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:13:43,604 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:13:43,605 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:13:43,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:13:43,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:43,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:13:43,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:43,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:43,605 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:43,605 INFO L185 Difference]: Start difference. First operand has 537 places, 701 transitions, 26412 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:13:43,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 723 transitions, 28174 flow [2021-03-12 00:13:44,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 723 transitions, 27798 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-12 00:13:45,012 INFO L241 Difference]: Finished difference. Result has 532 places, 700 transitions, 26430 flow [2021-03-12 00:13:45,013 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25956, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26430, PETRI_PLACES=532, PETRI_TRANSITIONS=700} [2021-03-12 00:13:45,013 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 509 predicate places. [2021-03-12 00:13:45,013 INFO L480 AbstractCegarLoop]: Abstraction has has 532 places, 700 transitions, 26430 flow [2021-03-12 00:13:45,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:45,013 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:45,013 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:45,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2021-03-12 00:13:45,013 INFO L428 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:45,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1363598040, now seen corresponding path program 46 times [2021-03-12 00:13:45,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:45,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160779072] [2021-03-12 00:13:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:45,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:45,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:45,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:13:45,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:45,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160779072] [2021-03-12 00:13:45,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851093824] [2021-03-12 00:13:45,050 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:45,069 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:13:45,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:13:45,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:13:45,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:13:45,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:45,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:45,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:45,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:45,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:45,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:45,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:45,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:45,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:45,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:45,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:45,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:45,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:45,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:45,134 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:13:45,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:45,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:45,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:45,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:13:45,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:45,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:45,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:13:45,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:13:45,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041872710] [2021-03-12 00:13:45,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:13:45,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:45,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:13:45,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:13:45,143 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:45,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 700 transitions, 26430 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:45,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:45,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:45,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:48,097 INFO L129 PetriNetUnfolder]: 4279/8002 cut-off events. [2021-03-12 00:13:48,097 INFO L130 PetriNetUnfolder]: For 379880/379895 co-relation queries the response was YES. [2021-03-12 00:13:48,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76821 conditions, 8002 events. 4279/8002 cut-off events. For 379880/379895 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 66011 event pairs, 1068 based on Foata normal form. 4/8006 useless extension candidates. Maximal degree in co-relation 76637. Up to 5311 conditions per place. [2021-03-12 00:13:48,242 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 524 selfloop transitions, 205 changer transitions 0/736 dead transitions. [2021-03-12 00:13:48,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 736 transitions, 28551 flow [2021-03-12 00:13:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:13:48,243 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:13:48,243 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:13:48,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:13:48,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:48,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:13:48,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:48,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:48,243 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:48,243 INFO L185 Difference]: Start difference. First operand has 532 places, 700 transitions, 26430 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:13:48,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 736 transitions, 28551 flow [2021-03-12 00:13:49,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 736 transitions, 28001 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-12 00:13:49,667 INFO L241 Difference]: Finished difference. Result has 534 places, 706 transitions, 26465 flow [2021-03-12 00:13:49,668 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25880, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26465, PETRI_PLACES=534, PETRI_TRANSITIONS=706} [2021-03-12 00:13:49,668 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 511 predicate places. [2021-03-12 00:13:49,668 INFO L480 AbstractCegarLoop]: Abstraction has has 534 places, 706 transitions, 26465 flow [2021-03-12 00:13:49,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:49,668 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:49,668 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:49,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619,152 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:49,868 INFO L428 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:49,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1392761599, now seen corresponding path program 44 times [2021-03-12 00:13:49,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:49,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263887429] [2021-03-12 00:13:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:49,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:49,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:13:49,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:49,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263887429] [2021-03-12 00:13:49,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267227066] [2021-03-12 00:13:49,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:49,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:13:49,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:13:49,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:13:49,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:13:49,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:49,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:49,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:49,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:49,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:49,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:49,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:49,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:49,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:49,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:49,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:49,990 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:13:49,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:49,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:49,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:49,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:13:49,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:49,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:49,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:13:49,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:13:49,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876317660] [2021-03-12 00:13:49,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:13:49,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:49,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:13:49,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:13:49,998 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:49,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 706 transitions, 26465 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:49,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:49,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:49,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:52,879 INFO L129 PetriNetUnfolder]: 4287/8003 cut-off events. [2021-03-12 00:13:52,879 INFO L130 PetriNetUnfolder]: For 379821/379836 co-relation queries the response was YES. [2021-03-12 00:13:52,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77436 conditions, 8003 events. 4287/8003 cut-off events. For 379821/379836 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 66212 event pairs, 1296 based on Foata normal form. 4/8007 useless extension candidates. Maximal degree in co-relation 77251. Up to 4902 conditions per place. [2021-03-12 00:13:53,028 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 513 selfloop transitions, 211 changer transitions 0/731 dead transitions. [2021-03-12 00:13:53,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 731 transitions, 28310 flow [2021-03-12 00:13:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:13:53,029 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:13:53,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:13:53,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:13:53,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:53,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:13:53,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:53,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:53,030 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:53,030 INFO L185 Difference]: Start difference. First operand has 534 places, 706 transitions, 26465 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:13:53,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 731 transitions, 28310 flow [2021-03-12 00:13:54,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 731 transitions, 27910 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-12 00:13:54,385 INFO L241 Difference]: Finished difference. Result has 538 places, 708 transitions, 26556 flow [2021-03-12 00:13:54,385 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26065, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26556, PETRI_PLACES=538, PETRI_TRANSITIONS=708} [2021-03-12 00:13:54,385 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 515 predicate places. [2021-03-12 00:13:54,385 INFO L480 AbstractCegarLoop]: Abstraction has has 538 places, 708 transitions, 26556 flow [2021-03-12 00:13:54,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:54,385 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:54,386 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:54,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 153 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable620 [2021-03-12 00:13:54,586 INFO L428 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:54,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1412816414, now seen corresponding path program 47 times [2021-03-12 00:13:54,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:54,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428021741] [2021-03-12 00:13:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:54,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:54,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:54,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:13:54,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:54,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428021741] [2021-03-12 00:13:54,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012040808] [2021-03-12 00:13:54,621 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:54,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:13:54,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:13:54,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:13:54,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:13:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:54,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:54,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:13:54,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:54,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:54,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:54,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:54,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:54,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:54,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:54,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:54,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:54,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:54,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:54,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:54,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:54,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:54,707 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:13:54,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:54,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:54,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:54,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:13:54,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:54,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:54,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:13:54,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:13:54,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577843426] [2021-03-12 00:13:54,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:13:54,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:54,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:13:54,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:13:54,713 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:54,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 708 transitions, 26556 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:54,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:54,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:54,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:13:57,474 INFO L129 PetriNetUnfolder]: 4327/8090 cut-off events. [2021-03-12 00:13:57,474 INFO L130 PetriNetUnfolder]: For 383439/383454 co-relation queries the response was YES. [2021-03-12 00:13:57,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78129 conditions, 8090 events. 4327/8090 cut-off events. For 383439/383454 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 66739 event pairs, 1094 based on Foata normal form. 4/8094 useless extension candidates. Maximal degree in co-relation 77942. Up to 5347 conditions per place. [2021-03-12 00:13:57,843 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 527 selfloop transitions, 213 changer transitions 0/747 dead transitions. [2021-03-12 00:13:57,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 747 transitions, 28808 flow [2021-03-12 00:13:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:13:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:13:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:13:57,845 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:13:57,845 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:13:57,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:13:57,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:13:57,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:13:57,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:57,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:57,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:57,845 INFO L185 Difference]: Start difference. First operand has 538 places, 708 transitions, 26556 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:13:57,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 747 transitions, 28808 flow [2021-03-12 00:13:59,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 747 transitions, 28149 flow, removed 22 selfloop flow, removed 8 redundant places. [2021-03-12 00:13:59,196 INFO L241 Difference]: Finished difference. Result has 537 places, 718 transitions, 26650 flow [2021-03-12 00:13:59,196 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=25877, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26650, PETRI_PLACES=537, PETRI_TRANSITIONS=718} [2021-03-12 00:13:59,196 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 514 predicate places. [2021-03-12 00:13:59,196 INFO L480 AbstractCegarLoop]: Abstraction has has 537 places, 718 transitions, 26650 flow [2021-03-12 00:13:59,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:59,196 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:13:59,196 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:13:59,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621,154 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:59,397 INFO L428 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:13:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:13:59,397 INFO L82 PathProgramCache]: Analyzing trace with hash 913660157, now seen corresponding path program 45 times [2021-03-12 00:13:59,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:13:59,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058022253] [2021-03-12 00:13:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:13:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:13:59,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:13:59,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:13:59,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:59,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058022253] [2021-03-12 00:13:59,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178637258] [2021-03-12 00:13:59,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:13:59,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:13:59,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:13:59,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:13:59,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:13:59,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:13:59,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:13:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:59,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:59,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:59,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:59,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:59,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:59,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:13:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:59,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:13:59,547 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:13:59,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:13:59,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:13:59,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:13:59,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:13:59,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:13:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:13:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:13:59,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:13:59,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:13:59,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818733569] [2021-03-12 00:13:59,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:13:59,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:13:59,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:13:59,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:13:59,555 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:13:59,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 718 transitions, 26650 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:13:59,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:13:59,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:13:59,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:02,208 INFO L129 PetriNetUnfolder]: 4331/8073 cut-off events. [2021-03-12 00:14:02,208 INFO L130 PetriNetUnfolder]: For 379442/379466 co-relation queries the response was YES. [2021-03-12 00:14:02,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78056 conditions, 8073 events. 4331/8073 cut-off events. For 379442/379466 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 66761 event pairs, 1306 based on Foata normal form. 8/8081 useless extension candidates. Maximal degree in co-relation 77869. Up to 4962 conditions per place. [2021-03-12 00:14:02,355 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 520 selfloop transitions, 214 changer transitions 0/741 dead transitions. [2021-03-12 00:14:02,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 741 transitions, 28470 flow [2021-03-12 00:14:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:02,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:14:02,356 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:14:02,356 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:14:02,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:14:02,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:02,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:14:02,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:02,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:02,357 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:02,357 INFO L185 Difference]: Start difference. First operand has 537 places, 718 transitions, 26650 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:14:02,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 741 transitions, 28470 flow [2021-03-12 00:14:03,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 741 transitions, 28053 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-12 00:14:03,889 INFO L241 Difference]: Finished difference. Result has 536 places, 719 transitions, 26678 flow [2021-03-12 00:14:03,890 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26198, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26678, PETRI_PLACES=536, PETRI_TRANSITIONS=719} [2021-03-12 00:14:03,890 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 513 predicate places. [2021-03-12 00:14:03,890 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 719 transitions, 26678 flow [2021-03-12 00:14:03,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:03,890 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:03,890 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:04,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable622 [2021-03-12 00:14:04,090 INFO L428 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:04,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1339336298, now seen corresponding path program 48 times [2021-03-12 00:14:04,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:04,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232370199] [2021-03-12 00:14:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:04,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:04,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:04,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:04,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232370199] [2021-03-12 00:14:04,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128755252] [2021-03-12 00:14:04,121 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:04,141 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:14:04,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:04,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:04,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:04,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:04,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:04,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:04,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:04,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:04,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:04,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:04,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:04,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:04,179 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:04,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:04,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:04,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:04,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:04,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:04,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:14:04,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104662111] [2021-03-12 00:14:04,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:14:04,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:04,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:14:04,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:14:04,187 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:04,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 719 transitions, 26678 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:04,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:04,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:04,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:07,237 INFO L129 PetriNetUnfolder]: 4963/9213 cut-off events. [2021-03-12 00:14:07,237 INFO L130 PetriNetUnfolder]: For 418057/418072 co-relation queries the response was YES. [2021-03-12 00:14:07,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87603 conditions, 9213 events. 4963/9213 cut-off events. For 418057/418072 co-relation queries the response was YES. Maximal size of possible extension queue 839. Compared 77156 event pairs, 1020 based on Foata normal form. 16/9229 useless extension candidates. Maximal degree in co-relation 87418. Up to 4249 conditions per place. [2021-03-12 00:14:07,413 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 675 selfloop transitions, 130 changer transitions 0/812 dead transitions. [2021-03-12 00:14:07,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 812 transitions, 30630 flow [2021-03-12 00:14:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:14:07,414 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:14:07,414 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:14:07,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:14:07,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:07,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:14:07,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:07,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:07,414 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:07,414 INFO L185 Difference]: Start difference. First operand has 536 places, 719 transitions, 26678 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:14:07,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 812 transitions, 30630 flow [2021-03-12 00:14:09,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 812 transitions, 30211 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:14:09,315 INFO L241 Difference]: Finished difference. Result has 542 places, 738 transitions, 27410 flow [2021-03-12 00:14:09,315 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26259, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27410, PETRI_PLACES=542, PETRI_TRANSITIONS=738} [2021-03-12 00:14:09,315 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 519 predicate places. [2021-03-12 00:14:09,315 INFO L480 AbstractCegarLoop]: Abstraction has has 542 places, 738 transitions, 27410 flow [2021-03-12 00:14:09,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:09,315 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:09,315 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:09,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623,156 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:09,516 INFO L428 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:09,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:09,516 INFO L82 PathProgramCache]: Analyzing trace with hash -44234008, now seen corresponding path program 49 times [2021-03-12 00:14:09,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:09,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159884741] [2021-03-12 00:14:09,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:09,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:09,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:09,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:09,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:09,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:09,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:09,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:09,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:09,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159884741] [2021-03-12 00:14:09,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:14:09,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:14:09,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697004784] [2021-03-12 00:14:09,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:14:09,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:09,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:14:09,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:14:09,546 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:09,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 738 transitions, 27410 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:09,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:09,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:09,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:12,856 INFO L129 PetriNetUnfolder]: 4923/9196 cut-off events. [2021-03-12 00:14:12,856 INFO L130 PetriNetUnfolder]: For 431259/431274 co-relation queries the response was YES. [2021-03-12 00:14:12,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88955 conditions, 9196 events. 4923/9196 cut-off events. For 431259/431274 co-relation queries the response was YES. Maximal size of possible extension queue 841. Compared 77549 event pairs, 1302 based on Foata normal form. 32/9228 useless extension candidates. Maximal degree in co-relation 88766. Up to 4249 conditions per place. [2021-03-12 00:14:13,054 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 644 selfloop transitions, 125 changer transitions 2/778 dead transitions. [2021-03-12 00:14:13,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 778 transitions, 29690 flow [2021-03-12 00:14:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:14:13,056 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:14:13,056 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:14:13,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:14:13,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:13,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:14:13,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:13,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:13,056 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:13,056 INFO L185 Difference]: Start difference. First operand has 542 places, 738 transitions, 27410 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:14:13,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 778 transitions, 29690 flow [2021-03-12 00:14:15,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 778 transitions, 29501 flow, removed 57 selfloop flow, removed 3 redundant places. [2021-03-12 00:14:15,052 INFO L241 Difference]: Finished difference. Result has 546 places, 734 transitions, 27362 flow [2021-03-12 00:14:15,052 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27173, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27362, PETRI_PLACES=546, PETRI_TRANSITIONS=734} [2021-03-12 00:14:15,052 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 523 predicate places. [2021-03-12 00:14:15,053 INFO L480 AbstractCegarLoop]: Abstraction has has 546 places, 734 transitions, 27362 flow [2021-03-12 00:14:15,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:15,053 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:15,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:15,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2021-03-12 00:14:15,053 INFO L428 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:15,053 INFO L82 PathProgramCache]: Analyzing trace with hash -948694691, now seen corresponding path program 46 times [2021-03-12 00:14:15,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:15,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080524743] [2021-03-12 00:14:15,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:15,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:14:15,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:15,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:15,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080524743] [2021-03-12 00:14:15,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85321315] [2021-03-12 00:14:15,090 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:15,110 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:14:15,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:15,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:15,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:15,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:15,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:15,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:15,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:15,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:15,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:15,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:15,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:15,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:15,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:15,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:15,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:15,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:15,277 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:15,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:15,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:15,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:15,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:15,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:15,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:15,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:15,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:14:15,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067584732] [2021-03-12 00:14:15,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:14:15,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:15,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:14:15,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:14:15,284 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:15,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 734 transitions, 27362 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:15,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:15,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:15,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:18,417 INFO L129 PetriNetUnfolder]: 4877/9088 cut-off events. [2021-03-12 00:14:18,417 INFO L130 PetriNetUnfolder]: For 413392/413407 co-relation queries the response was YES. [2021-03-12 00:14:18,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87039 conditions, 9088 events. 4877/9088 cut-off events. For 413392/413407 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 76646 event pairs, 1484 based on Foata normal form. 16/9104 useless extension candidates. Maximal degree in co-relation 86850. Up to 5886 conditions per place. [2021-03-12 00:14:18,579 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 520 selfloop transitions, 231 changer transitions 0/758 dead transitions. [2021-03-12 00:14:18,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 758 transitions, 29243 flow [2021-03-12 00:14:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:14:18,580 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:14:18,580 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:14:18,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:14:18,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:18,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:14:18,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:18,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:18,581 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:18,581 INFO L185 Difference]: Start difference. First operand has 546 places, 734 transitions, 27362 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:14:18,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 758 transitions, 29243 flow [2021-03-12 00:14:20,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 758 transitions, 28899 flow, removed 34 selfloop flow, removed 7 redundant places. [2021-03-12 00:14:20,287 INFO L241 Difference]: Finished difference. Result has 546 places, 737 transitions, 27591 flow [2021-03-12 00:14:20,287 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27018, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=734, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27591, PETRI_PLACES=546, PETRI_TRANSITIONS=737} [2021-03-12 00:14:20,287 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 523 predicate places. [2021-03-12 00:14:20,287 INFO L480 AbstractCegarLoop]: Abstraction has has 546 places, 737 transitions, 27591 flow [2021-03-12 00:14:20,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:20,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:20,288 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:20,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625,157 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:20,488 INFO L428 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash -465801794, now seen corresponding path program 50 times [2021-03-12 00:14:20,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:20,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862433849] [2021-03-12 00:14:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:20,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:20,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:20,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:20,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862433849] [2021-03-12 00:14:20,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116547679] [2021-03-12 00:14:20,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:20,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:14:20,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:20,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:20,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:20,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:20,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:20,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:20,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:20,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:20,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:20,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:20,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:20,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:20,726 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:20,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:20,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:20,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:20,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:20,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:20,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:20,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:14:20,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302002403] [2021-03-12 00:14:20,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:14:20,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:20,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:14:20,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:14:20,732 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:20,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 737 transitions, 27591 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:20,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:20,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:20,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:24,139 INFO L129 PetriNetUnfolder]: 5277/9723 cut-off events. [2021-03-12 00:14:24,139 INFO L130 PetriNetUnfolder]: For 447381/447396 co-relation queries the response was YES. [2021-03-12 00:14:24,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93234 conditions, 9723 events. 5277/9723 cut-off events. For 447381/447396 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 81393 event pairs, 1085 based on Foata normal form. 16/9739 useless extension candidates. Maximal degree in co-relation 93044. Up to 4249 conditions per place. [2021-03-12 00:14:24,353 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 651 selfloop transitions, 157 changer transitions 0/815 dead transitions. [2021-03-12 00:14:24,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 815 transitions, 31258 flow [2021-03-12 00:14:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:14:24,355 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:14:24,355 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:14:24,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:14:24,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:24,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:14:24,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:24,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:24,355 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:24,355 INFO L185 Difference]: Start difference. First operand has 546 places, 737 transitions, 27591 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:14:24,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 815 transitions, 31258 flow [2021-03-12 00:14:26,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 815 transitions, 30782 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-12 00:14:26,384 INFO L241 Difference]: Finished difference. Result has 551 places, 750 transitions, 28280 flow [2021-03-12 00:14:26,385 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26979, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28280, PETRI_PLACES=551, PETRI_TRANSITIONS=750} [2021-03-12 00:14:26,385 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 528 predicate places. [2021-03-12 00:14:26,385 INFO L480 AbstractCegarLoop]: Abstraction has has 551 places, 750 transitions, 28280 flow [2021-03-12 00:14:26,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:26,385 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:26,385 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:26,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626,158 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:26,585 INFO L428 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:26,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:26,586 INFO L82 PathProgramCache]: Analyzing trace with hash 600931876, now seen corresponding path program 51 times [2021-03-12 00:14:26,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:26,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994345078] [2021-03-12 00:14:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:26,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:14:26,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:26,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994345078] [2021-03-12 00:14:26,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743887706] [2021-03-12 00:14:26,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 159 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 159 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:26,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:14:26,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:26,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:26,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:26,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,664 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:26,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:14:26,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:26,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,667 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:14:26,667 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,669 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:14:26,669 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:14:26,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:26,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:26,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:26,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:26,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:26,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:26,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:14:26,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221311334] [2021-03-12 00:14:26,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:14:26,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:26,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:14:26,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:14:26,689 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:26,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 750 transitions, 28280 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:26,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:26,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:26,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:30,060 INFO L129 PetriNetUnfolder]: 5269/9713 cut-off events. [2021-03-12 00:14:30,061 INFO L130 PetriNetUnfolder]: For 455455/455479 co-relation queries the response was YES. [2021-03-12 00:14:30,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93985 conditions, 9713 events. 5269/9713 cut-off events. For 455455/455479 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 81391 event pairs, 1264 based on Foata normal form. 18/9731 useless extension candidates. Maximal degree in co-relation 93792. Up to 4249 conditions per place. [2021-03-12 00:14:30,234 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 675 selfloop transitions, 127 changer transitions 5/814 dead transitions. [2021-03-12 00:14:30,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 814 transitions, 31337 flow [2021-03-12 00:14:30,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:14:30,235 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:14:30,235 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:14:30,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:14:30,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:30,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:14:30,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:30,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:30,235 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:30,235 INFO L185 Difference]: Start difference. First operand has 551 places, 750 transitions, 28280 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:14:30,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 814 transitions, 31337 flow [2021-03-12 00:14:32,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 814 transitions, 31140 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-12 00:14:32,334 INFO L241 Difference]: Finished difference. Result has 557 places, 752 transitions, 28644 flow [2021-03-12 00:14:32,334 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28099, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28644, PETRI_PLACES=557, PETRI_TRANSITIONS=752} [2021-03-12 00:14:32,334 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 534 predicate places. [2021-03-12 00:14:32,334 INFO L480 AbstractCegarLoop]: Abstraction has has 557 places, 752 transitions, 28644 flow [2021-03-12 00:14:32,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:32,334 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:32,334 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:32,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 159 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable627 [2021-03-12 00:14:32,535 INFO L428 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:32,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:32,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1756002514, now seen corresponding path program 52 times [2021-03-12 00:14:32,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:32,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565069635] [2021-03-12 00:14:32,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:32,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:32,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:32,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:14:32,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:32,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:32,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565069635] [2021-03-12 00:14:32,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469537909] [2021-03-12 00:14:32,576 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 160 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 160 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:32,596 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:14:32,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:32,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:32,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:32,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:32,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:32,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:32,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:32,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:32,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:32,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:32,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:32,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:32,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:32,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:32,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:32,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:32,659 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:32,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:32,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:32,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:32,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:32,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:32,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:32,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:32,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:14:32,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630748917] [2021-03-12 00:14:32,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:14:32,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:32,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:14:32,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:14:32,665 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:32,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 752 transitions, 28644 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:32,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:32,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:32,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:36,013 INFO L129 PetriNetUnfolder]: 5305/9778 cut-off events. [2021-03-12 00:14:36,014 INFO L130 PetriNetUnfolder]: For 470397/470412 co-relation queries the response was YES. [2021-03-12 00:14:36,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94481 conditions, 9778 events. 5305/9778 cut-off events. For 470397/470412 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 81950 event pairs, 1406 based on Foata normal form. 20/9798 useless extension candidates. Maximal degree in co-relation 94285. Up to 4249 conditions per place. [2021-03-12 00:14:36,198 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 641 selfloop transitions, 162 changer transitions 0/810 dead transitions. [2021-03-12 00:14:36,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 810 transitions, 31790 flow [2021-03-12 00:14:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:14:36,199 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:14:36,199 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:14:36,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:14:36,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:36,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:14:36,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:36,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:36,199 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:36,199 INFO L185 Difference]: Start difference. First operand has 557 places, 752 transitions, 28644 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:14:36,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 810 transitions, 31790 flow [2021-03-12 00:14:38,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 810 transitions, 31619 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-12 00:14:38,294 INFO L241 Difference]: Finished difference. Result has 561 places, 768 transitions, 29629 flow [2021-03-12 00:14:38,295 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28464, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29629, PETRI_PLACES=561, PETRI_TRANSITIONS=768} [2021-03-12 00:14:38,295 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 538 predicate places. [2021-03-12 00:14:38,295 INFO L480 AbstractCegarLoop]: Abstraction has has 561 places, 768 transitions, 29629 flow [2021-03-12 00:14:38,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:38,295 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:38,295 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:38,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 160 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable630 [2021-03-12 00:14:38,495 INFO L428 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:38,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:38,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1612325241, now seen corresponding path program 47 times [2021-03-12 00:14:38,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:38,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657448325] [2021-03-12 00:14:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:38,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:38,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:14:38,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:38,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:38,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:38,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:38,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:38,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:38,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657448325] [2021-03-12 00:14:38,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:14:38,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:14:38,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801196452] [2021-03-12 00:14:38,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:14:38,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:38,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:14:38,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:14:38,530 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:38,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 768 transitions, 29629 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:38,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:38,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:38,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:41,946 INFO L129 PetriNetUnfolder]: 5253/9677 cut-off events. [2021-03-12 00:14:41,947 INFO L130 PetriNetUnfolder]: For 479250/479265 co-relation queries the response was YES. [2021-03-12 00:14:42,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94954 conditions, 9677 events. 5253/9677 cut-off events. For 479250/479265 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 81422 event pairs, 1636 based on Foata normal form. 32/9709 useless extension candidates. Maximal degree in co-relation 94757. Up to 6496 conditions per place. [2021-03-12 00:14:42,385 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 562 selfloop transitions, 214 changer transitions 3/786 dead transitions. [2021-03-12 00:14:42,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 786 transitions, 31313 flow [2021-03-12 00:14:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:42,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:14:42,386 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:14:42,386 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:14:42,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:14:42,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:42,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:14:42,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:42,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:42,387 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:42,387 INFO L185 Difference]: Start difference. First operand has 561 places, 768 transitions, 29629 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:14:42,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 786 transitions, 31313 flow [2021-03-12 00:14:44,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 786 transitions, 31027 flow, removed 21 selfloop flow, removed 4 redundant places. [2021-03-12 00:14:44,328 INFO L241 Difference]: Finished difference. Result has 565 places, 762 transitions, 29527 flow [2021-03-12 00:14:44,329 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=29114, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29527, PETRI_PLACES=565, PETRI_TRANSITIONS=762} [2021-03-12 00:14:44,329 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 542 predicate places. [2021-03-12 00:14:44,329 INFO L480 AbstractCegarLoop]: Abstraction has has 565 places, 762 transitions, 29527 flow [2021-03-12 00:14:44,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:44,329 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:44,329 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:44,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2021-03-12 00:14:44,329 INFO L428 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1215365866, now seen corresponding path program 53 times [2021-03-12 00:14:44,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:44,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932868526] [2021-03-12 00:14:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:44,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:44,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:44,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:44,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:14:44,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:44,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:44,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:44,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:44,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932868526] [2021-03-12 00:14:44,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:14:44,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:14:44,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077179505] [2021-03-12 00:14:44,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:14:44,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:44,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:14:44,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:14:44,359 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:44,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 762 transitions, 29527 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:44,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:44,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:44,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:47,716 INFO L129 PetriNetUnfolder]: 5233/9581 cut-off events. [2021-03-12 00:14:47,716 INFO L130 PetriNetUnfolder]: For 483908/483923 co-relation queries the response was YES. [2021-03-12 00:14:48,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95236 conditions, 9581 events. 5233/9581 cut-off events. For 483908/483923 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 79540 event pairs, 1449 based on Foata normal form. 8/9589 useless extension candidates. Maximal degree in co-relation 95037. Up to 4249 conditions per place. [2021-03-12 00:14:48,201 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 651 selfloop transitions, 144 changer transitions 2/804 dead transitions. [2021-03-12 00:14:48,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 804 transitions, 31937 flow [2021-03-12 00:14:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:14:48,202 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:14:48,202 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:14:48,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:14:48,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:48,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:14:48,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:48,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:48,202 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:48,203 INFO L185 Difference]: Start difference. First operand has 565 places, 762 transitions, 29527 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:14:48,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 804 transitions, 31937 flow [2021-03-12 00:14:50,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 804 transitions, 31503 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-12 00:14:50,203 INFO L241 Difference]: Finished difference. Result has 566 places, 760 transitions, 29320 flow [2021-03-12 00:14:50,204 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=29099, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29320, PETRI_PLACES=566, PETRI_TRANSITIONS=760} [2021-03-12 00:14:50,204 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 543 predicate places. [2021-03-12 00:14:50,204 INFO L480 AbstractCegarLoop]: Abstraction has has 566 places, 760 transitions, 29320 flow [2021-03-12 00:14:50,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:50,204 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:50,204 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:50,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2021-03-12 00:14:50,204 INFO L428 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:50,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:50,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2004391122, now seen corresponding path program 54 times [2021-03-12 00:14:50,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:50,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884910502] [2021-03-12 00:14:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:50,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:50,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:14:50,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:50,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:50,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884910502] [2021-03-12 00:14:50,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276779106] [2021-03-12 00:14:50,237 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 161 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 161 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:50,256 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:14:50,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:14:50,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:50,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:50,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:50,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:50,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:50,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:50,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:50,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:50,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:50,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:50,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:50,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:50,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:50,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:50,312 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:50,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:50,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:50,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:50,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:50,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:50,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:50,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:50,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:14:50,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282700496] [2021-03-12 00:14:50,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:14:50,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:50,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:14:50,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:14:50,318 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:50,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 760 transitions, 29320 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:50,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:50,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:50,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:53,743 INFO L129 PetriNetUnfolder]: 5224/9556 cut-off events. [2021-03-12 00:14:53,743 INFO L130 PetriNetUnfolder]: For 473948/473963 co-relation queries the response was YES. [2021-03-12 00:14:54,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93922 conditions, 9556 events. 5224/9556 cut-off events. For 473948/473963 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 79164 event pairs, 1247 based on Foata normal form. 8/9564 useless extension candidates. Maximal degree in co-relation 93723. Up to 4249 conditions per place. [2021-03-12 00:14:54,240 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 671 selfloop transitions, 139 changer transitions 0/817 dead transitions. [2021-03-12 00:14:54,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 817 transitions, 32083 flow [2021-03-12 00:14:54,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:14:54,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:14:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:14:54,241 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:14:54,241 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:14:54,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:14:54,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:14:54,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:14:54,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:54,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:54,242 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:54,242 INFO L185 Difference]: Start difference. First operand has 566 places, 760 transitions, 29320 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:14:54,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 817 transitions, 32083 flow [2021-03-12 00:14:56,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 817 transitions, 31646 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-12 00:14:56,148 INFO L241 Difference]: Finished difference. Result has 561 places, 763 transitions, 29282 flow [2021-03-12 00:14:56,149 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28804, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29282, PETRI_PLACES=561, PETRI_TRANSITIONS=763} [2021-03-12 00:14:56,149 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 538 predicate places. [2021-03-12 00:14:56,149 INFO L480 AbstractCegarLoop]: Abstraction has has 561 places, 763 transitions, 29282 flow [2021-03-12 00:14:56,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:56,149 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:14:56,149 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:14:56,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 161 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable633 [2021-03-12 00:14:56,349 INFO L428 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:14:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:14:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash -2092556034, now seen corresponding path program 55 times [2021-03-12 00:14:56,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:14:56,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228205499] [2021-03-12 00:14:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:14:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:56,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:56,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:14:56,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:14:56,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:56,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228205499] [2021-03-12 00:14:56,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071086074] [2021-03-12 00:14:56,381 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 162 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 162 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:14:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:14:56,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:14:56,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:14:56,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:56,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:56,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:56,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:14:56,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:56,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:56,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:56,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:56,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:56,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:14:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:56,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:14:56,469 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:14:56,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:14:56,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:14:56,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:14:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:14:56,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:14:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:14:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:14:56,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:14:56,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:14:56,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492810393] [2021-03-12 00:14:56,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:14:56,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:14:56,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:14:56,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:14:56,477 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:14:56,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 763 transitions, 29282 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:14:56,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:14:56,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:14:56,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:14:59,788 INFO L129 PetriNetUnfolder]: 5204/9485 cut-off events. [2021-03-12 00:14:59,789 INFO L130 PetriNetUnfolder]: For 463349/463373 co-relation queries the response was YES. [2021-03-12 00:15:00,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93611 conditions, 9485 events. 5204/9485 cut-off events. For 463349/463373 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 77989 event pairs, 1289 based on Foata normal form. 12/9497 useless extension candidates. Maximal degree in co-relation 93413. Up to 4249 conditions per place. [2021-03-12 00:15:00,322 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 621 selfloop transitions, 182 changer transitions 1/811 dead transitions. [2021-03-12 00:15:00,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 811 transitions, 31852 flow [2021-03-12 00:15:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:15:00,323 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:15:00,323 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:15:00,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:15:00,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:00,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:15:00,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:00,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:00,324 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:00,324 INFO L185 Difference]: Start difference. First operand has 561 places, 763 transitions, 29282 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:15:00,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 811 transitions, 31852 flow [2021-03-12 00:15:02,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 811 transitions, 31520 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-03-12 00:15:02,515 INFO L241 Difference]: Finished difference. Result has 562 places, 762 transitions, 29348 flow [2021-03-12 00:15:02,516 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28873, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29348, PETRI_PLACES=562, PETRI_TRANSITIONS=762} [2021-03-12 00:15:02,516 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 539 predicate places. [2021-03-12 00:15:02,516 INFO L480 AbstractCegarLoop]: Abstraction has has 562 places, 762 transitions, 29348 flow [2021-03-12 00:15:02,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:02,516 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:02,516 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:02,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634,162 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:02,716 INFO L428 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:02,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash -473184485, now seen corresponding path program 48 times [2021-03-12 00:15:02,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:02,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118909538] [2021-03-12 00:15:02,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:02,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:02,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:02,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118909538] [2021-03-12 00:15:02,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266363897] [2021-03-12 00:15:02,761 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 163 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 163 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:02,781 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:15:02,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:02,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:02,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:02,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:02,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:02,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:02,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:02,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:15:02,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:15:02,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,813 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:15:02,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,814 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:02,815 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,816 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:02,817 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,817 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:15:02,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:02,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:02,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:02,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:02,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:02,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:02,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:15:02,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3181570] [2021-03-12 00:15:02,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:15:02,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:15:02,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:15:02,840 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:02,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 762 transitions, 29348 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:02,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:02,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:02,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:06,198 INFO L129 PetriNetUnfolder]: 5175/9441 cut-off events. [2021-03-12 00:15:06,199 INFO L130 PetriNetUnfolder]: For 460461/460476 co-relation queries the response was YES. [2021-03-12 00:15:06,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92436 conditions, 9441 events. 5175/9441 cut-off events. For 460461/460476 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 78185 event pairs, 1599 based on Foata normal form. 8/9449 useless extension candidates. Maximal degree in co-relation 92239. Up to 6402 conditions per place. [2021-03-12 00:15:06,393 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 532 selfloop transitions, 233 changer transitions 6/778 dead transitions. [2021-03-12 00:15:06,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 778 transitions, 30950 flow [2021-03-12 00:15:06,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:15:06,394 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:15:06,394 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:15:06,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:15:06,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:06,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:15:06,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:06,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:06,394 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:06,394 INFO L185 Difference]: Start difference. First operand has 562 places, 762 transitions, 29348 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:15:06,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 778 transitions, 30950 flow [2021-03-12 00:15:08,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 778 transitions, 30631 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-12 00:15:08,459 INFO L241 Difference]: Finished difference. Result has 559 places, 754 transitions, 29033 flow [2021-03-12 00:15:08,459 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28743, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29033, PETRI_PLACES=559, PETRI_TRANSITIONS=754} [2021-03-12 00:15:08,459 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 536 predicate places. [2021-03-12 00:15:08,459 INFO L480 AbstractCegarLoop]: Abstraction has has 559 places, 754 transitions, 29033 flow [2021-03-12 00:15:08,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:08,460 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:08,460 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:08,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable635 [2021-03-12 00:15:08,660 INFO L428 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:08,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:08,660 INFO L82 PathProgramCache]: Analyzing trace with hash 465105466, now seen corresponding path program 56 times [2021-03-12 00:15:08,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:08,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162019768] [2021-03-12 00:15:08,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:08,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:08,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:08,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:08,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:08,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:08,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:08,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162019768] [2021-03-12 00:15:08,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:15:08,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:15:08,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652578381] [2021-03-12 00:15:08,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:15:08,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:08,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:15:08,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:15:08,694 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:08,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 754 transitions, 29033 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:08,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:08,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:08,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:12,015 INFO L129 PetriNetUnfolder]: 5167/9401 cut-off events. [2021-03-12 00:15:12,015 INFO L130 PetriNetUnfolder]: For 458757/458772 co-relation queries the response was YES. [2021-03-12 00:15:12,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92527 conditions, 9401 events. 5167/9401 cut-off events. For 458757/458772 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 77005 event pairs, 1272 based on Foata normal form. 2/9403 useless extension candidates. Maximal degree in co-relation 92334. Up to 4249 conditions per place. [2021-03-12 00:15:12,202 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 619 selfloop transitions, 167 changer transitions 2/795 dead transitions. [2021-03-12 00:15:12,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 795 transitions, 31368 flow [2021-03-12 00:15:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:15:12,204 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:15:12,204 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:15:12,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:15:12,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:12,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:15:12,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:12,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:12,205 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:12,205 INFO L185 Difference]: Start difference. First operand has 559 places, 754 transitions, 29033 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:15:12,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 795 transitions, 31368 flow [2021-03-12 00:15:14,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 795 transitions, 30890 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-12 00:15:14,235 INFO L241 Difference]: Finished difference. Result has 556 places, 752 transitions, 28808 flow [2021-03-12 00:15:14,235 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28506, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28808, PETRI_PLACES=556, PETRI_TRANSITIONS=752} [2021-03-12 00:15:14,235 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 533 predicate places. [2021-03-12 00:15:14,235 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 752 transitions, 28808 flow [2021-03-12 00:15:14,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:14,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:14,235 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:14,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2021-03-12 00:15:14,235 INFO L428 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash -664744024, now seen corresponding path program 57 times [2021-03-12 00:15:14,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:14,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093399552] [2021-03-12 00:15:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:14,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:14,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:14,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:14,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093399552] [2021-03-12 00:15:14,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129217940] [2021-03-12 00:15:14,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 164 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 164 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:14,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:15:14,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:14,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:14,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:14,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:14,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:14,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,338 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:14,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:14,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:14,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:14,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,340 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:14,341 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,342 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:14,343 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:15:14,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:14,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:14,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:14,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:14,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:14,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:14,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:14,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:15:14,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731528158] [2021-03-12 00:15:14,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:15:14,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:14,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:15:14,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:15:14,363 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:14,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 752 transitions, 28808 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:14,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:14,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:14,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:17,743 INFO L129 PetriNetUnfolder]: 5158/9401 cut-off events. [2021-03-12 00:15:17,744 INFO L130 PetriNetUnfolder]: For 454149/454164 co-relation queries the response was YES. [2021-03-12 00:15:17,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92165 conditions, 9401 events. 5158/9401 cut-off events. For 454149/454164 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 77288 event pairs, 1396 based on Foata normal form. 4/9405 useless extension candidates. Maximal degree in co-relation 91974. Up to 4249 conditions per place. [2021-03-12 00:15:17,923 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 645 selfloop transitions, 144 changer transitions 1/797 dead transitions. [2021-03-12 00:15:17,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 797 transitions, 31325 flow [2021-03-12 00:15:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:15:17,924 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:15:17,924 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:15:17,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:15:17,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:17,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:15:17,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:17,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:17,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:17,924 INFO L185 Difference]: Start difference. First operand has 556 places, 752 transitions, 28808 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:15:17,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 797 transitions, 31325 flow [2021-03-12 00:15:19,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 797 transitions, 30623 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-03-12 00:15:19,999 INFO L241 Difference]: Finished difference. Result has 548 places, 750 transitions, 28411 flow [2021-03-12 00:15:20,000 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28057, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=750, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28411, PETRI_PLACES=548, PETRI_TRANSITIONS=750} [2021-03-12 00:15:20,000 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 525 predicate places. [2021-03-12 00:15:20,000 INFO L480 AbstractCegarLoop]: Abstraction has has 548 places, 750 transitions, 28411 flow [2021-03-12 00:15:20,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:20,000 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:20,000 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:20,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable639 [2021-03-12 00:15:20,201 INFO L428 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:20,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:20,201 INFO L82 PathProgramCache]: Analyzing trace with hash 875123861, now seen corresponding path program 49 times [2021-03-12 00:15:20,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:20,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579088658] [2021-03-12 00:15:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:20,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:20,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:20,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:20,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:20,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579088658] [2021-03-12 00:15:20,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191227462] [2021-03-12 00:15:20,239 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 165 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 165 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:20,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:20,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:20,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:20,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:20,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:20,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:20,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:20,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:20,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:20,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:20,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:20,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:20,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:20,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:20,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:20,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:20,326 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:20,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:20,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:20,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:15:20,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:20,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:20,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:15:20,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331105211] [2021-03-12 00:15:20,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:15:20,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:20,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:15:20,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:15:20,333 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:20,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 750 transitions, 28411 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:20,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:20,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:20,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:23,746 INFO L129 PetriNetUnfolder]: 5173/9386 cut-off events. [2021-03-12 00:15:23,746 INFO L130 PetriNetUnfolder]: For 437928/437952 co-relation queries the response was YES. [2021-03-12 00:15:23,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92247 conditions, 9386 events. 5173/9386 cut-off events. For 437928/437952 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 77036 event pairs, 1617 based on Foata normal form. 8/9394 useless extension candidates. Maximal degree in co-relation 92055. Up to 6387 conditions per place. [2021-03-12 00:15:23,917 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 538 selfloop transitions, 227 changer transitions 0/772 dead transitions. [2021-03-12 00:15:23,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 772 transitions, 30334 flow [2021-03-12 00:15:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:23,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:15:23,918 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:15:23,918 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:15:23,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:15:23,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:23,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:15:23,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:23,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:23,919 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:23,919 INFO L185 Difference]: Start difference. First operand has 548 places, 750 transitions, 28411 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:15:23,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 772 transitions, 30334 flow [2021-03-12 00:15:25,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 772 transitions, 29996 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-03-12 00:15:25,834 INFO L241 Difference]: Finished difference. Result has 546 places, 752 transitions, 28610 flow [2021-03-12 00:15:25,835 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28034, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28610, PETRI_PLACES=546, PETRI_TRANSITIONS=752} [2021-03-12 00:15:25,835 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 523 predicate places. [2021-03-12 00:15:25,835 INFO L480 AbstractCegarLoop]: Abstraction has has 546 places, 752 transitions, 28610 flow [2021-03-12 00:15:25,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:25,835 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:25,835 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:26,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 165 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable642 [2021-03-12 00:15:26,036 INFO L428 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:26,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:26,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1363112084, now seen corresponding path program 58 times [2021-03-12 00:15:26,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:26,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832288272] [2021-03-12 00:15:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:26,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:26,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:26,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:26,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:26,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832288272] [2021-03-12 00:15:26,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928588963] [2021-03-12 00:15:26,069 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 166 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 166 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:26,089 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:15:26,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:26,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:26,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:26,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:26,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:26,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:26,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:26,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:26,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:26,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:26,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:26,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:26,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:26,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:26,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:26,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:26,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:26,146 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:26,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:26,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:15:26,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:26,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:26,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:26,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:15:26,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762900112] [2021-03-12 00:15:26,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:15:26,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:26,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:15:26,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:15:26,152 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:26,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 752 transitions, 28610 flow. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:26,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:26,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:26,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:29,483 INFO L129 PetriNetUnfolder]: 5233/9516 cut-off events. [2021-03-12 00:15:29,484 INFO L130 PetriNetUnfolder]: For 448483/448498 co-relation queries the response was YES. [2021-03-12 00:15:29,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93867 conditions, 9516 events. 5233/9516 cut-off events. For 448483/448498 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 78090 event pairs, 1392 based on Foata normal form. 4/9520 useless extension candidates. Maximal degree in co-relation 93675. Up to 4249 conditions per place. [2021-03-12 00:15:29,655 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 637 selfloop transitions, 167 changer transitions 0/811 dead transitions. [2021-03-12 00:15:29,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 811 transitions, 31838 flow [2021-03-12 00:15:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:15:29,656 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:15:29,656 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:15:29,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:15:29,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:29,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:15:29,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:29,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:29,656 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:29,656 INFO L185 Difference]: Start difference. First operand has 546 places, 752 transitions, 28610 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:15:29,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 811 transitions, 31838 flow [2021-03-12 00:15:31,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 811 transitions, 31155 flow, removed 10 selfloop flow, removed 7 redundant places. [2021-03-12 00:15:31,506 INFO L241 Difference]: Finished difference. Result has 541 places, 771 transitions, 29198 flow [2021-03-12 00:15:31,506 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27955, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29198, PETRI_PLACES=541, PETRI_TRANSITIONS=771} [2021-03-12 00:15:31,506 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 518 predicate places. [2021-03-12 00:15:31,506 INFO L480 AbstractCegarLoop]: Abstraction has has 541 places, 771 transitions, 29198 flow [2021-03-12 00:15:31,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:31,506 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:31,506 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:31,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643,166 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:31,707 INFO L428 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:31,707 INFO L82 PathProgramCache]: Analyzing trace with hash -765586363, now seen corresponding path program 50 times [2021-03-12 00:15:31,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:31,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286544765] [2021-03-12 00:15:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:31,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:31,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:31,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:31,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:31,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:31,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:31,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:31,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:31,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286544765] [2021-03-12 00:15:31,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:15:31,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:15:31,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122502925] [2021-03-12 00:15:31,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:15:31,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:31,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:15:31,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:15:31,739 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:31,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 771 transitions, 29198 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:31,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:31,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:31,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:34,901 INFO L129 PetriNetUnfolder]: 5201/9367 cut-off events. [2021-03-12 00:15:34,901 INFO L130 PetriNetUnfolder]: For 437709/437724 co-relation queries the response was YES. [2021-03-12 00:15:35,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92996 conditions, 9367 events. 5201/9367 cut-off events. For 437709/437724 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 76259 event pairs, 1602 based on Foata normal form. 16/9383 useless extension candidates. Maximal degree in co-relation 92805. Up to 6475 conditions per place. [2021-03-12 00:15:35,409 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 569 selfloop transitions, 214 changer transitions 2/792 dead transitions. [2021-03-12 00:15:35,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 792 transitions, 31078 flow [2021-03-12 00:15:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:15:35,411 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:15:35,411 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:15:35,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:15:35,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:35,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:15:35,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:35,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:35,411 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:35,411 INFO L185 Difference]: Start difference. First operand has 541 places, 771 transitions, 29198 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:15:35,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 792 transitions, 31078 flow [2021-03-12 00:15:37,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 792 transitions, 30728 flow, removed 20 selfloop flow, removed 5 redundant places. [2021-03-12 00:15:37,271 INFO L241 Difference]: Finished difference. Result has 543 places, 769 transitions, 29220 flow [2021-03-12 00:15:37,271 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28858, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29220, PETRI_PLACES=543, PETRI_TRANSITIONS=769} [2021-03-12 00:15:37,271 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 520 predicate places. [2021-03-12 00:15:37,271 INFO L480 AbstractCegarLoop]: Abstraction has has 543 places, 769 transitions, 29220 flow [2021-03-12 00:15:37,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:37,271 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:37,272 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:37,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2021-03-12 00:15:37,272 INFO L428 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:37,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:37,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1991192302, now seen corresponding path program 59 times [2021-03-12 00:15:37,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:37,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123114237] [2021-03-12 00:15:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:37,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:37,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:37,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123114237] [2021-03-12 00:15:37,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396324162] [2021-03-12 00:15:37,306 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 167 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 167 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:37,328 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:15:37,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:37,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:37,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:37,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:37,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:37,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:37,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,377 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:37,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:37,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:37,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:37,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,379 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,380 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:37,380 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,382 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:15:37,382 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:15:37,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:37,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:37,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:37,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:37,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:37,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:37,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:37,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:37,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:15:37,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304932786] [2021-03-12 00:15:37,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:15:37,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:37,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:15:37,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:15:37,403 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:37,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 769 transitions, 29220 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:37,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:37,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:37,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:40,661 INFO L129 PetriNetUnfolder]: 5196/9398 cut-off events. [2021-03-12 00:15:40,661 INFO L130 PetriNetUnfolder]: For 431258/431282 co-relation queries the response was YES. [2021-03-12 00:15:40,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92208 conditions, 9398 events. 5196/9398 cut-off events. For 431258/431282 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 76606 event pairs, 1421 based on Foata normal form. 6/9404 useless extension candidates. Maximal degree in co-relation 92016. Up to 6538 conditions per place. [2021-03-12 00:15:40,844 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 537 selfloop transitions, 249 changer transitions 2/795 dead transitions. [2021-03-12 00:15:40,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 795 transitions, 31247 flow [2021-03-12 00:15:40,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2021-03-12 00:15:40,845 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-03-12 00:15:40,845 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 189 transitions. [2021-03-12 00:15:40,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 189 transitions. [2021-03-12 00:15:40,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:40,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 189 transitions. [2021-03-12 00:15:40,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:40,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:40,846 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:40,846 INFO L185 Difference]: Start difference. First operand has 543 places, 769 transitions, 29220 flow. Second operand 7 states and 189 transitions. [2021-03-12 00:15:40,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 795 transitions, 31247 flow [2021-03-12 00:15:42,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 795 transitions, 30766 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-12 00:15:42,982 INFO L241 Difference]: Finished difference. Result has 541 places, 767 transitions, 29167 flow [2021-03-12 00:15:42,983 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28699, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=768, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=249, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29167, PETRI_PLACES=541, PETRI_TRANSITIONS=767} [2021-03-12 00:15:42,983 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 518 predicate places. [2021-03-12 00:15:42,983 INFO L480 AbstractCegarLoop]: Abstraction has has 541 places, 767 transitions, 29167 flow [2021-03-12 00:15:42,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:42,983 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:42,983 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:43,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 167 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable645 [2021-03-12 00:15:43,184 INFO L428 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:43,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1418998101, now seen corresponding path program 51 times [2021-03-12 00:15:43,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:43,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446230715] [2021-03-12 00:15:43,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:43,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:43,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:43,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:43,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:43,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:43,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:43,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:43,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:43,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446230715] [2021-03-12 00:15:43,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:15:43,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:15:43,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522527124] [2021-03-12 00:15:43,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:15:43,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:43,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:15:43,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:15:43,219 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:43,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 767 transitions, 29167 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:43,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:43,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:43,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:46,579 INFO L129 PetriNetUnfolder]: 5179/9316 cut-off events. [2021-03-12 00:15:46,579 INFO L130 PetriNetUnfolder]: For 435205/435229 co-relation queries the response was YES. [2021-03-12 00:15:46,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91816 conditions, 9316 events. 5179/9316 cut-off events. For 435205/435229 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 75661 event pairs, 1597 based on Foata normal form. 12/9328 useless extension candidates. Maximal degree in co-relation 91624. Up to 6464 conditions per place. [2021-03-12 00:15:46,757 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 563 selfloop transitions, 216 changer transitions 2/788 dead transitions. [2021-03-12 00:15:46,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 788 transitions, 30978 flow [2021-03-12 00:15:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:15:46,759 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:15:46,759 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:15:46,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:15:46,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:46,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:15:46,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:46,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:46,759 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:46,759 INFO L185 Difference]: Start difference. First operand has 541 places, 767 transitions, 29167 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:15:46,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 788 transitions, 30978 flow [2021-03-12 00:15:48,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 788 transitions, 30262 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-03-12 00:15:48,675 INFO L241 Difference]: Finished difference. Result has 535 places, 765 transitions, 28780 flow [2021-03-12 00:15:48,675 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28341, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=765, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28780, PETRI_PLACES=535, PETRI_TRANSITIONS=765} [2021-03-12 00:15:48,675 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 512 predicate places. [2021-03-12 00:15:48,675 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 765 transitions, 28780 flow [2021-03-12 00:15:48,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:48,676 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:48,676 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:48,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2021-03-12 00:15:48,676 INFO L428 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:48,676 INFO L82 PathProgramCache]: Analyzing trace with hash -207057250, now seen corresponding path program 60 times [2021-03-12 00:15:48,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:48,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54237885] [2021-03-12 00:15:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:48,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:48,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:48,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:48,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:48,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:48,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:15:48,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:48,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:48,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54237885] [2021-03-12 00:15:48,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:15:48,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:15:48,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325316244] [2021-03-12 00:15:48,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:15:48,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:48,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:15:48,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:15:48,707 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:48,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 765 transitions, 28780 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:48,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:48,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:48,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:52,079 INFO L129 PetriNetUnfolder]: 5173/9334 cut-off events. [2021-03-12 00:15:52,079 INFO L130 PetriNetUnfolder]: For 414527/414542 co-relation queries the response was YES. [2021-03-12 00:15:52,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90755 conditions, 9334 events. 5173/9334 cut-off events. For 414527/414542 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 75756 event pairs, 1406 based on Foata normal form. 2/9336 useless extension candidates. Maximal degree in co-relation 90564. Up to 6506 conditions per place. [2021-03-12 00:15:52,251 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 539 selfloop transitions, 234 changer transitions 5/785 dead transitions. [2021-03-12 00:15:52,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 785 transitions, 30700 flow [2021-03-12 00:15:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2021-03-12 00:15:52,252 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7387755102040816 [2021-03-12 00:15:52,252 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 181 transitions. [2021-03-12 00:15:52,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 181 transitions. [2021-03-12 00:15:52,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:52,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 181 transitions. [2021-03-12 00:15:52,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:52,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:52,253 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:52,253 INFO L185 Difference]: Start difference. First operand has 535 places, 765 transitions, 28780 flow. Second operand 7 states and 181 transitions. [2021-03-12 00:15:52,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 785 transitions, 30700 flow [2021-03-12 00:15:53,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 785 transitions, 30279 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-12 00:15:53,878 INFO L241 Difference]: Finished difference. Result has 533 places, 761 transitions, 28644 flow [2021-03-12 00:15:53,878 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28316, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=764, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28644, PETRI_PLACES=533, PETRI_TRANSITIONS=761} [2021-03-12 00:15:53,878 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 510 predicate places. [2021-03-12 00:15:53,878 INFO L480 AbstractCegarLoop]: Abstraction has has 533 places, 761 transitions, 28644 flow [2021-03-12 00:15:53,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:53,878 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:53,878 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:53,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2021-03-12 00:15:53,878 INFO L428 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:53,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:53,878 INFO L82 PathProgramCache]: Analyzing trace with hash -587730677, now seen corresponding path program 52 times [2021-03-12 00:15:53,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:53,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211336827] [2021-03-12 00:15:53,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:53,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:53,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:53,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:53,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:53,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:53,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:53,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211336827] [2021-03-12 00:15:53,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787700800] [2021-03-12 00:15:53,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 168 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 168 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:53,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:15:53,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:53,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:53,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:53,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:53,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:53,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:53,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:53,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:53,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:53,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:53,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:53,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:53,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:54,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:54,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:54,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:54,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:15:54,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:54,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:54,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:54,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:54,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:54,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:54,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:54,063 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:54,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:54,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:54,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:54,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:15:54,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:54,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:54,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:54,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:15:54,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453229449] [2021-03-12 00:15:54,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:15:54,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:54,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:15:54,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:15:54,072 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:54,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 761 transitions, 28644 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:54,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:54,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:54,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:15:57,269 INFO L129 PetriNetUnfolder]: 5152/9213 cut-off events. [2021-03-12 00:15:57,269 INFO L130 PetriNetUnfolder]: For 420235/420250 co-relation queries the response was YES. [2021-03-12 00:15:57,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90354 conditions, 9213 events. 5152/9213 cut-off events. For 420235/420250 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 74186 event pairs, 1592 based on Foata normal form. 8/9221 useless extension candidates. Maximal degree in co-relation 90166. Up to 6453 conditions per place. [2021-03-12 00:15:57,441 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 537 selfloop transitions, 237 changer transitions 1/782 dead transitions. [2021-03-12 00:15:57,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 782 transitions, 30521 flow [2021-03-12 00:15:57,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:15:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:15:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:15:57,443 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:15:57,443 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:15:57,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:15:57,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:15:57,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:15:57,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:57,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:57,443 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:57,443 INFO L185 Difference]: Start difference. First operand has 533 places, 761 transitions, 28644 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:15:57,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 782 transitions, 30521 flow [2021-03-12 00:15:59,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 782 transitions, 29766 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-12 00:15:59,317 INFO L241 Difference]: Finished difference. Result has 521 places, 760 transitions, 28359 flow [2021-03-12 00:15:59,317 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27830, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28359, PETRI_PLACES=521, PETRI_TRANSITIONS=760} [2021-03-12 00:15:59,317 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 498 predicate places. [2021-03-12 00:15:59,317 INFO L480 AbstractCegarLoop]: Abstraction has has 521 places, 760 transitions, 28359 flow [2021-03-12 00:15:59,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:59,317 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:15:59,317 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:15:59,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650,168 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:59,518 INFO L428 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:15:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:15:59,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1609080029, now seen corresponding path program 53 times [2021-03-12 00:15:59,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:15:59,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245850170] [2021-03-12 00:15:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:15:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:15:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:15:59,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:15:59,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:59,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245850170] [2021-03-12 00:15:59,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245034596] [2021-03-12 00:15:59,554 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 169 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 169 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:15:59,574 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:15:59,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:15:59,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:15:59,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:15:59,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:59,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:15:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:15:59,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:59,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:59,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:59,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:59,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:59,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:59,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:59,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:59,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:59,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:15:59,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:59,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:15:59,639 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:15:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:15:59,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:15:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:15:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:15:59,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:15:59,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:15:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:15:59,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:15:59,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:15:59,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748256819] [2021-03-12 00:15:59,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:15:59,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:15:59,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:15:59,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:15:59,646 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:15:59,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 760 transitions, 28359 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:15:59,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:15:59,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:15:59,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:02,752 INFO L129 PetriNetUnfolder]: 5143/9192 cut-off events. [2021-03-12 00:16:02,753 INFO L130 PetriNetUnfolder]: For 402984/402999 co-relation queries the response was YES. [2021-03-12 00:16:02,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89933 conditions, 9192 events. 5143/9192 cut-off events. For 402984/402999 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 73973 event pairs, 1572 based on Foata normal form. 4/9196 useless extension candidates. Maximal degree in co-relation 89751. Up to 6453 conditions per place. [2021-03-12 00:16:02,916 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 553 selfloop transitions, 221 changer transitions 0/781 dead transitions. [2021-03-12 00:16:02,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 781 transitions, 30219 flow [2021-03-12 00:16:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:16:02,917 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:16:02,917 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:16:02,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:16:02,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:02,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:16:02,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:02,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:02,917 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:02,917 INFO L185 Difference]: Start difference. First operand has 521 places, 760 transitions, 28359 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:16:02,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 781 transitions, 30219 flow [2021-03-12 00:16:04,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 781 transitions, 29716 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-03-12 00:16:04,678 INFO L241 Difference]: Finished difference. Result has 517 places, 761 transitions, 28347 flow [2021-03-12 00:16:04,678 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27808, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28347, PETRI_PLACES=517, PETRI_TRANSITIONS=761} [2021-03-12 00:16:04,678 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 494 predicate places. [2021-03-12 00:16:04,678 INFO L480 AbstractCegarLoop]: Abstraction has has 517 places, 761 transitions, 28347 flow [2021-03-12 00:16:04,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:04,678 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:04,678 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:04,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 169 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable651 [2021-03-12 00:16:04,880 INFO L428 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:04,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1985822427, now seen corresponding path program 54 times [2021-03-12 00:16:04,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:04,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726799213] [2021-03-12 00:16:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:04,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:04,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:04,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:04,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726799213] [2021-03-12 00:16:04,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482400291] [2021-03-12 00:16:04,913 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 170 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 170 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:04,933 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:16:04,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:16:04,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:04,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:04,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:04,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:04,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:04,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:04,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:16:04,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:16:04,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,981 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:16:04,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:04,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,984 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:04,984 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,986 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:04,986 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:04,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:04,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:04,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:05,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:05,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:16:05,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877015897] [2021-03-12 00:16:05,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:16:05,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:05,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:16:05,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:16:05,006 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:05,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 761 transitions, 28347 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:05,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:05,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:05,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:07,953 INFO L129 PetriNetUnfolder]: 5139/9196 cut-off events. [2021-03-12 00:16:07,953 INFO L130 PetriNetUnfolder]: For 402361/402376 co-relation queries the response was YES. [2021-03-12 00:16:08,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89934 conditions, 9196 events. 5139/9196 cut-off events. For 402361/402376 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 74140 event pairs, 1580 based on Foata normal form. 2/9198 useless extension candidates. Maximal degree in co-relation 89755. Up to 6453 conditions per place. [2021-03-12 00:16:08,420 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 551 selfloop transitions, 217 changer transitions 2/777 dead transitions. [2021-03-12 00:16:08,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 777 transitions, 30100 flow [2021-03-12 00:16:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:16:08,421 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:16:08,421 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:16:08,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:16:08,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:08,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:16:08,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:08,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:08,422 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:08,422 INFO L185 Difference]: Start difference. First operand has 517 places, 761 transitions, 28347 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:16:08,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 777 transitions, 30100 flow [2021-03-12 00:16:09,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 777 transitions, 29675 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-12 00:16:09,979 INFO L241 Difference]: Finished difference. Result has 518 places, 759 transitions, 28293 flow [2021-03-12 00:16:09,979 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27883, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28293, PETRI_PLACES=518, PETRI_TRANSITIONS=759} [2021-03-12 00:16:09,979 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 495 predicate places. [2021-03-12 00:16:09,979 INFO L480 AbstractCegarLoop]: Abstraction has has 518 places, 759 transitions, 28293 flow [2021-03-12 00:16:09,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:09,979 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:09,979 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:10,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 170 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable652 [2021-03-12 00:16:10,180 INFO L428 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:10,180 INFO L82 PathProgramCache]: Analyzing trace with hash -226093507, now seen corresponding path program 55 times [2021-03-12 00:16:10,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:10,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054859742] [2021-03-12 00:16:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:10,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:10,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:10,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:10,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:10,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:10,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054859742] [2021-03-12 00:16:10,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862921429] [2021-03-12 00:16:10,213 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 171 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 171 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:10,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:10,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:10,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:10,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:10,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:10,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:10,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:10,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:10,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:10,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,278 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:16:10,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:10,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:10,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:10,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,281 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:10,281 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:10,283 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,283 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:10,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:10,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:10,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:10,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:10,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:10,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:10,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:10,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:16:10,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762611560] [2021-03-12 00:16:10,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:16:10,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:16:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:16:10,303 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:10,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 759 transitions, 28293 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:10,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:10,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:10,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:13,437 INFO L129 PetriNetUnfolder]: 5134/9155 cut-off events. [2021-03-12 00:16:13,437 INFO L130 PetriNetUnfolder]: For 401932/401956 co-relation queries the response was YES. [2021-03-12 00:16:13,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89644 conditions, 9155 events. 5134/9155 cut-off events. For 401932/401956 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 73349 event pairs, 1604 based on Foata normal form. 6/9161 useless extension candidates. Maximal degree in co-relation 89465. Up to 6453 conditions per place. [2021-03-12 00:16:13,607 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 535 selfloop transitions, 233 changer transitions 2/777 dead transitions. [2021-03-12 00:16:13,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 777 transitions, 30052 flow [2021-03-12 00:16:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:16:13,608 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:16:13,608 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:16:13,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:16:13,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:13,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:16:13,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:13,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:13,609 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:13,609 INFO L185 Difference]: Start difference. First operand has 518 places, 759 transitions, 28293 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:16:13,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 777 transitions, 30052 flow [2021-03-12 00:16:15,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 777 transitions, 29600 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-03-12 00:16:15,451 INFO L241 Difference]: Finished difference. Result has 515 places, 757 transitions, 28228 flow [2021-03-12 00:16:15,452 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27792, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28228, PETRI_PLACES=515, PETRI_TRANSITIONS=757} [2021-03-12 00:16:15,452 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 492 predicate places. [2021-03-12 00:16:15,452 INFO L480 AbstractCegarLoop]: Abstraction has has 515 places, 757 transitions, 28228 flow [2021-03-12 00:16:15,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:15,452 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:15,452 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:15,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 171 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable655 [2021-03-12 00:16:15,652 INFO L428 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:15,653 INFO L82 PathProgramCache]: Analyzing trace with hash 419564367, now seen corresponding path program 56 times [2021-03-12 00:16:15,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:15,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569254473] [2021-03-12 00:16:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:15,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:15,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:15,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:15,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:15,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:15,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:15,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:15,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:15,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569254473] [2021-03-12 00:16:15,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:16:15,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:16:15,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305885385] [2021-03-12 00:16:15,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:16:15,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:15,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:16:15,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:16:15,681 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:15,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 757 transitions, 28228 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:15,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:15,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:15,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:18,866 INFO L129 PetriNetUnfolder]: 5113/9110 cut-off events. [2021-03-12 00:16:18,866 INFO L130 PetriNetUnfolder]: For 399349/399364 co-relation queries the response was YES. [2021-03-12 00:16:18,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89242 conditions, 9110 events. 5113/9110 cut-off events. For 399349/399364 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 72765 event pairs, 1585 based on Foata normal form. 4/9114 useless extension candidates. Maximal degree in co-relation 89064. Up to 6453 conditions per place. [2021-03-12 00:16:19,046 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 547 selfloop transitions, 218 changer transitions 5/777 dead transitions. [2021-03-12 00:16:19,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 777 transitions, 29972 flow [2021-03-12 00:16:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:16:19,047 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:16:19,047 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:16:19,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:16:19,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:19,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:16:19,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:19,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:19,048 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:19,048 INFO L185 Difference]: Start difference. First operand has 515 places, 757 transitions, 28228 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:16:19,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 777 transitions, 29972 flow [2021-03-12 00:16:20,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 777 transitions, 29495 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-12 00:16:20,632 INFO L241 Difference]: Finished difference. Result has 512 places, 752 transitions, 27955 flow [2021-03-12 00:16:20,633 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27639, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27955, PETRI_PLACES=512, PETRI_TRANSITIONS=752} [2021-03-12 00:16:20,633 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 489 predicate places. [2021-03-12 00:16:20,633 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 752 transitions, 27955 flow [2021-03-12 00:16:20,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:20,633 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:20,633 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:20,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2021-03-12 00:16:20,633 INFO L428 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1783530447, now seen corresponding path program 57 times [2021-03-12 00:16:20,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:20,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286169634] [2021-03-12 00:16:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:20,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:20,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:20,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:20,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:20,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:20,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:20,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:20,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:20,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286169634] [2021-03-12 00:16:20,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:16:20,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:16:20,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648802466] [2021-03-12 00:16:20,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:16:20,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:20,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:16:20,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:16:20,665 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:20,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 752 transitions, 27955 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:20,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:20,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:20,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:23,745 INFO L129 PetriNetUnfolder]: 5098/9083 cut-off events. [2021-03-12 00:16:23,745 INFO L130 PetriNetUnfolder]: For 398478/398493 co-relation queries the response was YES. [2021-03-12 00:16:23,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88883 conditions, 9083 events. 5098/9083 cut-off events. For 398478/398493 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 72741 event pairs, 1574 based on Foata normal form. 4/9087 useless extension candidates. Maximal degree in co-relation 88706. Up to 6453 conditions per place. [2021-03-12 00:16:23,904 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 552 selfloop transitions, 211 changer transitions 1/771 dead transitions. [2021-03-12 00:16:23,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 771 transitions, 29734 flow [2021-03-12 00:16:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:16:23,905 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:16:23,905 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:16:23,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:16:23,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:23,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:16:23,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:23,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:23,905 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:23,905 INFO L185 Difference]: Start difference. First operand has 512 places, 752 transitions, 27955 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:16:23,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 771 transitions, 29734 flow [2021-03-12 00:16:25,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 771 transitions, 29284 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-12 00:16:25,586 INFO L241 Difference]: Finished difference. Result has 509 places, 750 transitions, 27848 flow [2021-03-12 00:16:25,586 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27468, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27848, PETRI_PLACES=509, PETRI_TRANSITIONS=750} [2021-03-12 00:16:25,586 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 486 predicate places. [2021-03-12 00:16:25,586 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 750 transitions, 27848 flow [2021-03-12 00:16:25,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:25,586 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:25,586 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:25,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2021-03-12 00:16:25,586 INFO L428 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:25,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:25,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1662914033, now seen corresponding path program 58 times [2021-03-12 00:16:25,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:25,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885732573] [2021-03-12 00:16:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:25,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:25,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:25,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:25,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:25,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:25,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:25,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:25,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:25,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885732573] [2021-03-12 00:16:25,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:16:25,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:16:25,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108378843] [2021-03-12 00:16:25,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:16:25,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:25,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:16:25,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:16:25,617 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:25,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 750 transitions, 27848 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:25,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:25,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:25,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:28,451 INFO L129 PetriNetUnfolder]: 5093/9063 cut-off events. [2021-03-12 00:16:28,451 INFO L130 PetriNetUnfolder]: For 397917/397932 co-relation queries the response was YES. [2021-03-12 00:16:28,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88718 conditions, 9063 events. 5093/9063 cut-off events. For 397917/397932 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 72369 event pairs, 1578 based on Foata normal form. 2/9065 useless extension candidates. Maximal degree in co-relation 88542. Up to 6453 conditions per place. [2021-03-12 00:16:28,617 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 546 selfloop transitions, 209 changer transitions 4/766 dead transitions. [2021-03-12 00:16:28,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 766 transitions, 29575 flow [2021-03-12 00:16:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2021-03-12 00:16:28,618 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.763265306122449 [2021-03-12 00:16:28,618 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 187 transitions. [2021-03-12 00:16:28,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 187 transitions. [2021-03-12 00:16:28,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:28,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 187 transitions. [2021-03-12 00:16:28,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.714285714285715) internal successors, (187), 7 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:28,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:28,618 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:28,618 INFO L185 Difference]: Start difference. First operand has 509 places, 750 transitions, 27848 flow. Second operand 7 states and 187 transitions. [2021-03-12 00:16:28,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 766 transitions, 29575 flow [2021-03-12 00:16:30,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 766 transitions, 29178 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:16:30,350 INFO L241 Difference]: Finished difference. Result has 508 places, 747 transitions, 27720 flow [2021-03-12 00:16:30,350 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27402, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27720, PETRI_PLACES=508, PETRI_TRANSITIONS=747} [2021-03-12 00:16:30,350 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 485 predicate places. [2021-03-12 00:16:30,350 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 747 transitions, 27720 flow [2021-03-12 00:16:30,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:30,351 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:30,351 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:30,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2021-03-12 00:16:30,351 INFO L428 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:30,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:30,351 INFO L82 PathProgramCache]: Analyzing trace with hash 258303665, now seen corresponding path program 59 times [2021-03-12 00:16:30,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:30,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419234142] [2021-03-12 00:16:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:30,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:30,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:30,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:30,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:30,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419234142] [2021-03-12 00:16:30,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806365329] [2021-03-12 00:16:30,383 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 172 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 172 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:30,403 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:16:30,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:16:30,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:30,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:30,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:30,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:30,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,449 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:16:30,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:30,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:30,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:30,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,452 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:30,452 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,454 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:30,454 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,454 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:30,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:30,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:30,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:30,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:30,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:30,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:30,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:16:30,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391169022] [2021-03-12 00:16:30,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:16:30,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:30,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:16:30,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:16:30,474 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:30,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 747 transitions, 27720 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:30,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:30,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:30,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:33,483 INFO L129 PetriNetUnfolder]: 5088/9046 cut-off events. [2021-03-12 00:16:33,483 INFO L130 PetriNetUnfolder]: For 397114/397129 co-relation queries the response was YES. [2021-03-12 00:16:33,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88376 conditions, 9046 events. 5088/9046 cut-off events. For 397114/397129 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 72132 event pairs, 1574 based on Foata normal form. 2/9048 useless extension candidates. Maximal degree in co-relation 88201. Up to 6453 conditions per place. [2021-03-12 00:16:33,639 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 537 selfloop transitions, 218 changer transitions 2/764 dead transitions. [2021-03-12 00:16:33,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 764 transitions, 29461 flow [2021-03-12 00:16:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:16:33,640 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:16:33,640 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:16:33,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:16:33,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:33,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:16:33,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:33,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:33,640 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:33,640 INFO L185 Difference]: Start difference. First operand has 508 places, 747 transitions, 27720 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:16:33,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 764 transitions, 29461 flow [2021-03-12 00:16:35,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 764 transitions, 28985 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-12 00:16:35,108 INFO L241 Difference]: Finished difference. Result has 502 places, 745 transitions, 27619 flow [2021-03-12 00:16:35,108 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27209, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27619, PETRI_PLACES=502, PETRI_TRANSITIONS=745} [2021-03-12 00:16:35,108 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 479 predicate places. [2021-03-12 00:16:35,108 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 745 transitions, 27619 flow [2021-03-12 00:16:35,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:35,108 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:35,108 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:35,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661,172 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:35,309 INFO L428 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:35,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:35,309 INFO L82 PathProgramCache]: Analyzing trace with hash -890361535, now seen corresponding path program 60 times [2021-03-12 00:16:35,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:35,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759186935] [2021-03-12 00:16:35,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:35,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:35,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:35,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:35,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:35,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:35,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:35,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:35,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:35,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759186935] [2021-03-12 00:16:35,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:16:35,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:16:35,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215370431] [2021-03-12 00:16:35,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:16:35,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:35,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:16:35,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:16:35,340 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:35,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 745 transitions, 27619 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:35,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:35,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:35,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:38,346 INFO L129 PetriNetUnfolder]: 5083/9032 cut-off events. [2021-03-12 00:16:38,346 INFO L130 PetriNetUnfolder]: For 395430/395454 co-relation queries the response was YES. [2021-03-12 00:16:38,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88264 conditions, 9032 events. 5083/9032 cut-off events. For 395430/395454 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 71920 event pairs, 1597 based on Foata normal form. 6/9038 useless extension candidates. Maximal degree in co-relation 88090. Up to 6453 conditions per place. [2021-03-12 00:16:38,514 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 542 selfloop transitions, 201 changer transitions 5/755 dead transitions. [2021-03-12 00:16:38,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 755 transitions, 29246 flow [2021-03-12 00:16:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 183 transitions. [2021-03-12 00:16:38,514 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.746938775510204 [2021-03-12 00:16:38,514 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 183 transitions. [2021-03-12 00:16:38,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 183 transitions. [2021-03-12 00:16:38,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:38,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 183 transitions. [2021-03-12 00:16:38,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:38,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:38,515 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:38,515 INFO L185 Difference]: Start difference. First operand has 502 places, 745 transitions, 27619 flow. Second operand 7 states and 183 transitions. [2021-03-12 00:16:38,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 755 transitions, 29246 flow [2021-03-12 00:16:40,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 755 transitions, 28600 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-03-12 00:16:40,270 INFO L241 Difference]: Finished difference. Result has 489 places, 741 transitions, 27213 flow [2021-03-12 00:16:40,270 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26936, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=744, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27213, PETRI_PLACES=489, PETRI_TRANSITIONS=741} [2021-03-12 00:16:40,270 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 466 predicate places. [2021-03-12 00:16:40,270 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 741 transitions, 27213 flow [2021-03-12 00:16:40,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:40,270 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:40,270 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:40,270 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2021-03-12 00:16:40,270 INFO L428 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:40,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:40,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1155827616, now seen corresponding path program 61 times [2021-03-12 00:16:40,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:40,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722118606] [2021-03-12 00:16:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:40,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:40,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:40,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:40,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:40,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722118606] [2021-03-12 00:16:40,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833292836] [2021-03-12 00:16:40,304 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 173 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 173 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:40,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:40,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:40,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:40,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:40,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:40,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:40,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:40,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:16:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:16:40,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,371 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:16:40,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:40,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:40,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:16:40,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,374 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:40,375 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,376 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:40,376 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,377 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:40,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:40,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:40,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:40,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:16:40,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351113198] [2021-03-12 00:16:40,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:16:40,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:40,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:16:40,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:16:40,397 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:40,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 741 transitions, 27213 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:40,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:40,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:40,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:43,166 INFO L129 PetriNetUnfolder]: 5076/9058 cut-off events. [2021-03-12 00:16:43,167 INFO L130 PetriNetUnfolder]: For 384591/384615 co-relation queries the response was YES. [2021-03-12 00:16:43,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87503 conditions, 9058 events. 5076/9058 cut-off events. For 384591/384615 co-relation queries the response was YES. Maximal size of possible extension queue 793. Compared 72222 event pairs, 1502 based on Foata normal form. 16/9074 useless extension candidates. Maximal degree in co-relation 87333. Up to 5407 conditions per place. [2021-03-12 00:16:43,601 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 461 selfloop transitions, 301 changer transitions 1/770 dead transitions. [2021-03-12 00:16:43,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 770 transitions, 29227 flow [2021-03-12 00:16:43,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:16:43,603 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:16:43,603 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:16:43,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:16:43,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:43,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:16:43,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:43,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:43,603 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:43,603 INFO L185 Difference]: Start difference. First operand has 489 places, 741 transitions, 27213 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:16:43,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 770 transitions, 29227 flow [2021-03-12 00:16:45,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 770 transitions, 28764 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-12 00:16:45,023 INFO L241 Difference]: Finished difference. Result has 486 places, 744 transitions, 27473 flow [2021-03-12 00:16:45,024 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26758, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27473, PETRI_PLACES=486, PETRI_TRANSITIONS=744} [2021-03-12 00:16:45,024 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 463 predicate places. [2021-03-12 00:16:45,024 INFO L480 AbstractCegarLoop]: Abstraction has has 486 places, 744 transitions, 27473 flow [2021-03-12 00:16:45,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:45,024 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:45,024 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:45,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 173 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable665 [2021-03-12 00:16:45,224 INFO L428 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:45,225 INFO L82 PathProgramCache]: Analyzing trace with hash -375098611, now seen corresponding path program 61 times [2021-03-12 00:16:45,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:45,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553177593] [2021-03-12 00:16:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:45,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:45,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:45,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553177593] [2021-03-12 00:16:45,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178690429] [2021-03-12 00:16:45,259 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 174 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 174 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:45,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:45,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:45,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:45,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:45,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:45,309 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:16:45,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:16:45,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:45,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:16:45,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,312 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:45,312 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,314 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:45,314 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:45,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:45,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:45,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:45,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:45,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:45,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:45,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:45,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:45,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:16:45,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020758161] [2021-03-12 00:16:45,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:16:45,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:45,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:16:45,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:16:45,338 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:45,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 744 transitions, 27473 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:45,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:45,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:45,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:48,408 INFO L129 PetriNetUnfolder]: 5250/9404 cut-off events. [2021-03-12 00:16:48,408 INFO L130 PetriNetUnfolder]: For 397704/397719 co-relation queries the response was YES. [2021-03-12 00:16:48,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90928 conditions, 9404 events. 5250/9404 cut-off events. For 397704/397719 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 75573 event pairs, 1204 based on Foata normal form. 4/9408 useless extension candidates. Maximal degree in co-relation 90757. Up to 6648 conditions per place. [2021-03-12 00:16:48,570 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 577 selfloop transitions, 227 changer transitions 15/826 dead transitions. [2021-03-12 00:16:48,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 826 transitions, 30968 flow [2021-03-12 00:16:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:48,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:16:48,571 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:16:48,571 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:16:48,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:16:48,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:48,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:16:48,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:48,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:48,572 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:48,572 INFO L185 Difference]: Start difference. First operand has 486 places, 744 transitions, 27473 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:16:48,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 826 transitions, 30968 flow [2021-03-12 00:16:50,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 826 transitions, 30346 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-12 00:16:50,395 INFO L241 Difference]: Finished difference. Result has 492 places, 766 transitions, 28200 flow [2021-03-12 00:16:50,395 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=26851, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=744, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=212, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28200, PETRI_PLACES=492, PETRI_TRANSITIONS=766} [2021-03-12 00:16:50,395 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 469 predicate places. [2021-03-12 00:16:50,395 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 766 transitions, 28200 flow [2021-03-12 00:16:50,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:50,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:50,395 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:50,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668,174 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:50,596 INFO L428 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:50,596 INFO L82 PathProgramCache]: Analyzing trace with hash -708688390, now seen corresponding path program 62 times [2021-03-12 00:16:50,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:50,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066005584] [2021-03-12 00:16:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:50,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:50,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:50,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066005584] [2021-03-12 00:16:50,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838920066] [2021-03-12 00:16:50,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 175 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 175 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:50,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:16:50,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:16:50,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:50,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:50,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:50,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:50,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:50,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:16:50,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:50,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:50,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:50,675 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:16:50,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:16:50,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:50,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:16:50,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,678 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:50,678 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,680 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:50,680 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:50,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:50,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:50,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:50,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:50,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:50,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:50,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:50,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:50,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:50,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:16:50,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324637279] [2021-03-12 00:16:50,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:16:50,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:50,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:16:50,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:16:50,703 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:50,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 766 transitions, 28200 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:50,703 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:50,703 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:50,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:53,830 INFO L129 PetriNetUnfolder]: 5266/9533 cut-off events. [2021-03-12 00:16:53,831 INFO L130 PetriNetUnfolder]: For 398882/398897 co-relation queries the response was YES. [2021-03-12 00:16:53,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91975 conditions, 9533 events. 5266/9533 cut-off events. For 398882/398897 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 78160 event pairs, 1493 based on Foata normal form. 4/9537 useless extension candidates. Maximal degree in co-relation 91800. Up to 5705 conditions per place. [2021-03-12 00:16:54,028 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 472 selfloop transitions, 321 changer transitions 5/805 dead transitions. [2021-03-12 00:16:54,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 805 transitions, 30525 flow [2021-03-12 00:16:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:16:54,029 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:16:54,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:16:54,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:16:54,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:54,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:16:54,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:54,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:54,030 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:54,030 INFO L185 Difference]: Start difference. First operand has 492 places, 766 transitions, 28200 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:16:54,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 805 transitions, 30525 flow [2021-03-12 00:16:55,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 805 transitions, 30413 flow, removed 53 selfloop flow, removed 2 redundant places. [2021-03-12 00:16:55,979 INFO L241 Difference]: Finished difference. Result has 498 places, 771 transitions, 28940 flow [2021-03-12 00:16:55,979 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28088, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=316, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28940, PETRI_PLACES=498, PETRI_TRANSITIONS=771} [2021-03-12 00:16:55,980 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 475 predicate places. [2021-03-12 00:16:55,980 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 771 transitions, 28940 flow [2021-03-12 00:16:55,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:55,980 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:16:55,980 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:16:56,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671,175 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:56,180 INFO L428 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:16:56,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:16:56,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1601979531, now seen corresponding path program 62 times [2021-03-12 00:16:56,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:16:56,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547454329] [2021-03-12 00:16:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:16:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:16:56,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:16:56,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:56,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547454329] [2021-03-12 00:16:56,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593028017] [2021-03-12 00:16:56,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 176 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 176 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:16:56,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:16:56,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:16:56,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:16:56,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:16:56,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:16:56,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:16:56,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:56,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:56,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:56,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:16:56,252 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-03-12 00:16:56,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-12 00:16:56,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:16:56,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-12 00:16:56,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,255 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:56,255 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,257 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:16:56,257 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,258 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:16:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:16:56,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:56,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,271 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:16:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:16:56,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:16:56,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:16:56,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:16:56,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:16:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:16:56,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:16:56,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:16:56,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049982866] [2021-03-12 00:16:56,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:16:56,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:16:56,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:16:56,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:16:56,279 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:16:56,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 771 transitions, 28940 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:56,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:16:56,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:16:56,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:16:59,645 INFO L129 PetriNetUnfolder]: 5416/9759 cut-off events. [2021-03-12 00:16:59,645 INFO L130 PetriNetUnfolder]: For 421711/421726 co-relation queries the response was YES. [2021-03-12 00:16:59,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95420 conditions, 9759 events. 5416/9759 cut-off events. For 421711/421726 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 79220 event pairs, 1110 based on Foata normal form. 6/9765 useless extension candidates. Maximal degree in co-relation 95243. Up to 4913 conditions per place. [2021-03-12 00:16:59,821 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 480 selfloop transitions, 344 changer transitions 16/847 dead transitions. [2021-03-12 00:16:59,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 847 transitions, 32199 flow [2021-03-12 00:16:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:16:59,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:16:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2021-03-12 00:16:59,822 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7836734693877551 [2021-03-12 00:16:59,822 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 192 transitions. [2021-03-12 00:16:59,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 192 transitions. [2021-03-12 00:16:59,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:16:59,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 192 transitions. [2021-03-12 00:16:59,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:59,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:59,822 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:16:59,822 INFO L185 Difference]: Start difference. First operand has 498 places, 771 transitions, 28940 flow. Second operand 7 states and 192 transitions. [2021-03-12 00:16:59,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 847 transitions, 32199 flow [2021-03-12 00:17:02,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 847 transitions, 31226 flow, removed 23 selfloop flow, removed 6 redundant places. [2021-03-12 00:17:02,156 INFO L241 Difference]: Finished difference. Result has 500 places, 783 transitions, 29094 flow [2021-03-12 00:17:02,156 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27967, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29094, PETRI_PLACES=500, PETRI_TRANSITIONS=783} [2021-03-12 00:17:02,157 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 477 predicate places. [2021-03-12 00:17:02,157 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 783 transitions, 29094 flow [2021-03-12 00:17:02,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:02,157 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:02,157 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:02,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 176 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable674 [2021-03-12 00:17:02,357 INFO L428 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:02,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1251152462, now seen corresponding path program 63 times [2021-03-12 00:17:02,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:02,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134916836] [2021-03-12 00:17:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:02,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:02,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:02,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:02,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:02,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:02,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:02,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:02,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:02,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134916836] [2021-03-12 00:17:02,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:17:02,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:17:02,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995229973] [2021-03-12 00:17:02,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:17:02,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:02,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:17:02,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:17:02,388 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:02,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 783 transitions, 29094 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:02,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:02,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:02,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:05,774 INFO L129 PetriNetUnfolder]: 5394/9810 cut-off events. [2021-03-12 00:17:05,774 INFO L130 PetriNetUnfolder]: For 412269/412284 co-relation queries the response was YES. [2021-03-12 00:17:05,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95079 conditions, 9810 events. 5394/9810 cut-off events. For 412269/412284 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 81230 event pairs, 1596 based on Foata normal form. 14/9824 useless extension candidates. Maximal degree in co-relation 94901. Up to 5930 conditions per place. [2021-03-12 00:17:05,939 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 512 selfloop transitions, 293 changer transitions 1/813 dead transitions. [2021-03-12 00:17:05,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 813 transitions, 31182 flow [2021-03-12 00:17:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:05,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:17:05,941 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:17:05,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:17:05,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:17:05,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:05,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:17:05,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:05,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:05,941 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:05,941 INFO L185 Difference]: Start difference. First operand has 500 places, 783 transitions, 29094 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:17:05,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 813 transitions, 31182 flow [2021-03-12 00:17:07,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 813 transitions, 29972 flow, removed 73 selfloop flow, removed 11 redundant places. [2021-03-12 00:17:07,464 INFO L241 Difference]: Finished difference. Result has 495 places, 782 transitions, 28434 flow [2021-03-12 00:17:07,464 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27884, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28434, PETRI_PLACES=495, PETRI_TRANSITIONS=782} [2021-03-12 00:17:07,465 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 472 predicate places. [2021-03-12 00:17:07,465 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 782 transitions, 28434 flow [2021-03-12 00:17:07,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:07,465 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:07,465 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:07,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2021-03-12 00:17:07,465 INFO L428 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:07,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:07,465 INFO L82 PathProgramCache]: Analyzing trace with hash -238256131, now seen corresponding path program 63 times [2021-03-12 00:17:07,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:07,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117621400] [2021-03-12 00:17:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:07,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:07,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:07,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:07,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117621400] [2021-03-12 00:17:07,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175008810] [2021-03-12 00:17:07,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 177 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 177 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:07,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:17:07,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:07,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:07,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:07,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:07,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:07,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:07,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:07,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:07,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:07,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:07,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:07,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:07,557 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:07,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:07,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:07,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:07,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:17:07,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:07,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:07,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:17:07,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127195058] [2021-03-12 00:17:07,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:17:07,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:07,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:17:07,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:17:07,565 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:07,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 782 transitions, 28434 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:07,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:07,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:07,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:11,078 INFO L129 PetriNetUnfolder]: 6177/11215 cut-off events. [2021-03-12 00:17:11,078 INFO L130 PetriNetUnfolder]: For 442623/442638 co-relation queries the response was YES. [2021-03-12 00:17:11,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104907 conditions, 11215 events. 6177/11215 cut-off events. For 442623/442638 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 94258 event pairs, 1314 based on Foata normal form. 16/11231 useless extension candidates. Maximal degree in co-relation 104737. Up to 5508 conditions per place. [2021-03-12 00:17:11,290 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 736 selfloop transitions, 139 changer transitions 0/882 dead transitions. [2021-03-12 00:17:11,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 882 transitions, 32398 flow [2021-03-12 00:17:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:17:11,600 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:17:11,600 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:17:11,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:17:11,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:11,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:17:11,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:11,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:11,601 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:11,601 INFO L185 Difference]: Start difference. First operand has 495 places, 782 transitions, 28434 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:17:11,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 882 transitions, 32398 flow [2021-03-12 00:17:13,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 882 transitions, 31762 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-03-12 00:17:13,412 INFO L241 Difference]: Finished difference. Result has 498 places, 797 transitions, 28740 flow [2021-03-12 00:17:13,413 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=27813, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=782, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28740, PETRI_PLACES=498, PETRI_TRANSITIONS=797} [2021-03-12 00:17:13,413 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 475 predicate places. [2021-03-12 00:17:13,413 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 797 transitions, 28740 flow [2021-03-12 00:17:13,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:13,413 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:13,413 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:13,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 177 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable678 [2021-03-12 00:17:13,614 INFO L428 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:13,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1798453517, now seen corresponding path program 64 times [2021-03-12 00:17:13,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:13,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25676054] [2021-03-12 00:17:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:13,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:13,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:13,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:13,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:13,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25676054] [2021-03-12 00:17:13,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446468613] [2021-03-12 00:17:13,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 178 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 178 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:13,665 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:17:13,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:13,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:13,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:13,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:13,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:13,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:13,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:13,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:13,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:13,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:13,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:13,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:13,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:13,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:13,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:13,712 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:13,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:13,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:13,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:13,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:17:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:13,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:13,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:13,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:17:13,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612615102] [2021-03-12 00:17:13,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:17:13,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:13,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:17:13,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:17:13,719 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:13,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 797 transitions, 28740 flow. Second operand has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:13,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:13,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:13,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:17,346 INFO L129 PetriNetUnfolder]: 6207/11288 cut-off events. [2021-03-12 00:17:17,346 INFO L130 PetriNetUnfolder]: For 458115/458130 co-relation queries the response was YES. [2021-03-12 00:17:17,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107644 conditions, 11288 events. 6207/11288 cut-off events. For 458115/458130 co-relation queries the response was YES. Maximal size of possible extension queue 1015. Compared 95138 event pairs, 1433 based on Foata normal form. 16/11304 useless extension candidates. Maximal degree in co-relation 107472. Up to 5508 conditions per place. [2021-03-12 00:17:17,547 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 742 selfloop transitions, 125 changer transitions 0/874 dead transitions. [2021-03-12 00:17:17,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 874 transitions, 32204 flow [2021-03-12 00:17:17,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:17:17,548 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:17:17,548 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:17:17,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:17:17,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:17,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:17:17,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:17,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:17,549 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:17,549 INFO L185 Difference]: Start difference. First operand has 498 places, 797 transitions, 28740 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:17:17,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 874 transitions, 32204 flow [2021-03-12 00:17:19,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 874 transitions, 31901 flow, removed 78 selfloop flow, removed 2 redundant places. [2021-03-12 00:17:19,930 INFO L241 Difference]: Finished difference. Result has 505 places, 814 transitions, 29445 flow [2021-03-12 00:17:19,930 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=28477, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=797, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29445, PETRI_PLACES=505, PETRI_TRANSITIONS=814} [2021-03-12 00:17:19,930 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 482 predicate places. [2021-03-12 00:17:19,930 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 814 transitions, 29445 flow [2021-03-12 00:17:19,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.444444444444443) internal successors, (211), 9 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:19,930 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:19,930 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:20,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 178 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable679 [2021-03-12 00:17:20,135 INFO L428 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1866280918, now seen corresponding path program 64 times [2021-03-12 00:17:20,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:20,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922378068] [2021-03-12 00:17:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:20,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:20,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:20,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:20,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:20,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922378068] [2021-03-12 00:17:20,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084652454] [2021-03-12 00:17:20,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 179 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 179 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:20,198 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:17:20,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:20,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:20,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:20,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:20,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:20,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:20,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:20,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,244 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:20,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:20,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:20,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:20,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,247 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:17:20,248 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,249 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:17:20,250 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,250 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:17:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:20,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:20,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:20,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:17:20,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442638897] [2021-03-12 00:17:20,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:17:20,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:20,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:17:20,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:17:20,269 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:20,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 814 transitions, 29445 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:20,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:20,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:20,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:24,028 INFO L129 PetriNetUnfolder]: 6163/11305 cut-off events. [2021-03-12 00:17:24,029 INFO L130 PetriNetUnfolder]: For 438799/438814 co-relation queries the response was YES. [2021-03-12 00:17:24,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104737 conditions, 11305 events. 6163/11305 cut-off events. For 438799/438814 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 96924 event pairs, 1934 based on Foata normal form. 12/11317 useless extension candidates. Maximal degree in co-relation 104562. Up to 7210 conditions per place. [2021-03-12 00:17:24,534 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 515 selfloop transitions, 322 changer transitions 2/846 dead transitions. [2021-03-12 00:17:24,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 846 transitions, 31644 flow [2021-03-12 00:17:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:17:24,536 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:17:24,536 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:17:24,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:17:24,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:24,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:17:24,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:24,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:24,536 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:24,536 INFO L185 Difference]: Start difference. First operand has 505 places, 814 transitions, 29445 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:17:24,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 846 transitions, 31644 flow [2021-03-12 00:17:26,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 846 transitions, 31448 flow, removed 22 selfloop flow, removed 3 redundant places. [2021-03-12 00:17:26,427 INFO L241 Difference]: Finished difference. Result has 510 places, 815 transitions, 29918 flow [2021-03-12 00:17:26,427 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=29193, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=319, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=29918, PETRI_PLACES=510, PETRI_TRANSITIONS=815} [2021-03-12 00:17:26,428 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 487 predicate places. [2021-03-12 00:17:26,428 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 815 transitions, 29918 flow [2021-03-12 00:17:26,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:26,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:26,428 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:26,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680,179 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:26,628 INFO L428 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1918934579, now seen corresponding path program 65 times [2021-03-12 00:17:26,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:26,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830361977] [2021-03-12 00:17:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:26,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:26,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:26,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:26,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:26,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830361977] [2021-03-12 00:17:26,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539581791] [2021-03-12 00:17:26,665 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 180 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 180 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:26,685 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:17:26,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:26,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:26,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:26,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:26,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:26,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:26,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:26,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:26,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:26,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:26,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:26,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:26,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:26,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:26,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:26,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:26,750 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:26,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:17:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:26,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:26,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:26,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:17:26,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697525128] [2021-03-12 00:17:26,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:17:26,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:26,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:17:26,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:17:26,758 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:26,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 815 transitions, 29918 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:26,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:26,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:26,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:30,628 INFO L129 PetriNetUnfolder]: 6183/11270 cut-off events. [2021-03-12 00:17:30,629 INFO L130 PetriNetUnfolder]: For 447459/447474 co-relation queries the response was YES. [2021-03-12 00:17:30,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105907 conditions, 11270 events. 6183/11270 cut-off events. For 447459/447474 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 95211 event pairs, 1533 based on Foata normal form. 24/11294 useless extension candidates. Maximal degree in co-relation 105730. Up to 7397 conditions per place. [2021-03-12 00:17:31,169 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 602 selfloop transitions, 255 changer transitions 0/864 dead transitions. [2021-03-12 00:17:31,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 864 transitions, 32675 flow [2021-03-12 00:17:31,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:17:31,170 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:17:31,170 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:17:31,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:17:31,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:31,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:17:31,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:31,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:31,171 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:31,171 INFO L185 Difference]: Start difference. First operand has 510 places, 815 transitions, 29918 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:17:31,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 864 transitions, 32675 flow [2021-03-12 00:17:33,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 864 transitions, 32100 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-12 00:17:33,178 INFO L241 Difference]: Finished difference. Result has 516 places, 824 transitions, 30252 flow [2021-03-12 00:17:33,178 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=29343, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=30252, PETRI_PLACES=516, PETRI_TRANSITIONS=824} [2021-03-12 00:17:33,179 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 493 predicate places. [2021-03-12 00:17:33,179 INFO L480 AbstractCegarLoop]: Abstraction has has 516 places, 824 transitions, 30252 flow [2021-03-12 00:17:33,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:33,179 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:33,179 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:33,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683,180 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:33,379 INFO L428 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:33,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2008210963, now seen corresponding path program 66 times [2021-03-12 00:17:33,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:33,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199676941] [2021-03-12 00:17:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:33,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:33,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:33,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:33,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:33,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199676941] [2021-03-12 00:17:33,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28584543] [2021-03-12 00:17:33,440 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:33,460 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:17:33,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:33,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:33,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:33,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:33,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:33,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:33,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:33,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:33,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:33,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:33,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:33,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:33,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:33,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:33,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:33,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:33,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:33,535 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:33,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:33,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:33,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:33,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:17:33,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:33,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:33,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:33,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:17:33,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941408804] [2021-03-12 00:17:33,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:17:33,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:33,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:17:33,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:17:33,543 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:33,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 824 transitions, 30252 flow. Second operand has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:33,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:33,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:33,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:37,446 INFO L129 PetriNetUnfolder]: 6139/11146 cut-off events. [2021-03-12 00:17:37,446 INFO L130 PetriNetUnfolder]: For 443989/444004 co-relation queries the response was YES. [2021-03-12 00:17:37,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105476 conditions, 11146 events. 6139/11146 cut-off events. For 443989/444004 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 93326 event pairs, 1275 based on Foata normal form. 12/11158 useless extension candidates. Maximal degree in co-relation 105296. Up to 5881 conditions per place. [2021-03-12 00:17:37,989 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 504 selfloop transitions, 361 changer transitions 0/872 dead transitions. [2021-03-12 00:17:37,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 872 transitions, 32925 flow [2021-03-12 00:17:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:37,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:17:37,990 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:17:37,990 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:17:37,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:17:37,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:37,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:17:37,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:37,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:37,991 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:37,991 INFO L185 Difference]: Start difference. First operand has 516 places, 824 transitions, 30252 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:17:37,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 872 transitions, 32925 flow [2021-03-12 00:17:40,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 872 transitions, 32482 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-12 00:17:40,055 INFO L241 Difference]: Finished difference. Result has 520 places, 827 transitions, 30767 flow [2021-03-12 00:17:40,056 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=29774, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=30767, PETRI_PLACES=520, PETRI_TRANSITIONS=827} [2021-03-12 00:17:40,056 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 497 predicate places. [2021-03-12 00:17:40,056 INFO L480 AbstractCegarLoop]: Abstraction has has 520 places, 827 transitions, 30767 flow [2021-03-12 00:17:40,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.3) internal successors, (233), 10 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:40,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:40,056 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:40,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 181 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable684 [2021-03-12 00:17:40,256 INFO L428 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:40,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1826227376, now seen corresponding path program 65 times [2021-03-12 00:17:40,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:40,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753940929] [2021-03-12 00:17:40,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:40,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:40,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:17:40,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:17:40,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:40,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:40,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:40,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:40,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:40,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753940929] [2021-03-12 00:17:40,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:17:40,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:17:40,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135756887] [2021-03-12 00:17:40,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:17:40,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:40,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:17:40,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:17:40,289 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:40,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 827 transitions, 30767 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:40,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:40,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:40,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:44,261 INFO L129 PetriNetUnfolder]: 6151/11261 cut-off events. [2021-03-12 00:17:44,261 INFO L130 PetriNetUnfolder]: For 463029/463044 co-relation queries the response was YES. [2021-03-12 00:17:44,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106765 conditions, 11261 events. 6151/11261 cut-off events. For 463029/463044 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 96199 event pairs, 1907 based on Foata normal form. 8/11269 useless extension candidates. Maximal degree in co-relation 106583. Up to 7170 conditions per place. [2021-03-12 00:17:44,785 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 562 selfloop transitions, 291 changer transitions 1/861 dead transitions. [2021-03-12 00:17:44,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 861 transitions, 33095 flow [2021-03-12 00:17:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:17:44,786 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:17:44,786 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:17:44,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:17:44,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:44,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:17:44,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:44,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:44,787 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:44,787 INFO L185 Difference]: Start difference. First operand has 520 places, 827 transitions, 30767 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:17:44,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 861 transitions, 33095 flow [2021-03-12 00:17:46,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 861 transitions, 32471 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:17:46,784 INFO L241 Difference]: Finished difference. Result has 526 places, 829 transitions, 30826 flow [2021-03-12 00:17:46,784 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30108, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=826, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=287, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=30826, PETRI_PLACES=526, PETRI_TRANSITIONS=829} [2021-03-12 00:17:46,784 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 503 predicate places. [2021-03-12 00:17:46,784 INFO L480 AbstractCegarLoop]: Abstraction has has 526 places, 829 transitions, 30826 flow [2021-03-12 00:17:46,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:46,784 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:46,784 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:46,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2021-03-12 00:17:46,784 INFO L428 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:46,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:46,785 INFO L82 PathProgramCache]: Analyzing trace with hash 332747829, now seen corresponding path program 67 times [2021-03-12 00:17:46,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:46,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014265998] [2021-03-12 00:17:46,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:46,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:46,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:46,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014265998] [2021-03-12 00:17:46,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621195879] [2021-03-12 00:17:46,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 182 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 182 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:46,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:46,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:46,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:46,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:46,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:46,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:46,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:46,887 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:46,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:46,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:46,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:17:46,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:17:46,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:46,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:46,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-03-12 00:17:46,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434106] [2021-03-12 00:17:46,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 00:17:46,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:46,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 00:17:46,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-12 00:17:46,894 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:46,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 829 transitions, 30826 flow. Second operand has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:46,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:46,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:46,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:51,462 INFO L129 PetriNetUnfolder]: 6626/11981 cut-off events. [2021-03-12 00:17:51,462 INFO L130 PetriNetUnfolder]: For 480346/480361 co-relation queries the response was YES. [2021-03-12 00:17:51,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112368 conditions, 11981 events. 6626/11981 cut-off events. For 480346/480361 co-relation queries the response was YES. Maximal size of possible extension queue 1061. Compared 100777 event pairs, 1403 based on Foata normal form. 28/12009 useless extension candidates. Maximal degree in co-relation 112183. Up to 5775 conditions per place. [2021-03-12 00:17:51,698 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 581 selfloop transitions, 316 changer transitions 0/904 dead transitions. [2021-03-12 00:17:51,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 904 transitions, 34293 flow [2021-03-12 00:17:51,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2021-03-12 00:17:51,699 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8 [2021-03-12 00:17:51,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 196 transitions. [2021-03-12 00:17:51,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 196 transitions. [2021-03-12 00:17:51,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:51,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 196 transitions. [2021-03-12 00:17:51,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:51,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:51,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:51,699 INFO L185 Difference]: Start difference. First operand has 526 places, 829 transitions, 30826 flow. Second operand 7 states and 196 transitions. [2021-03-12 00:17:51,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 904 transitions, 34293 flow [2021-03-12 00:17:53,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 904 transitions, 33810 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-12 00:17:53,831 INFO L241 Difference]: Finished difference. Result has 531 places, 836 transitions, 31402 flow [2021-03-12 00:17:53,832 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30248, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=826, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31402, PETRI_PLACES=531, PETRI_TRANSITIONS=836} [2021-03-12 00:17:53,832 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 508 predicate places. [2021-03-12 00:17:53,832 INFO L480 AbstractCegarLoop]: Abstraction has has 531 places, 836 transitions, 31402 flow [2021-03-12 00:17:53,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 23.25) internal successors, (186), 8 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:53,832 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:17:53,832 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:17:54,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 182 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable686 [2021-03-12 00:17:54,032 INFO L428 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:17:54,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:17:54,032 INFO L82 PathProgramCache]: Analyzing trace with hash 661654557, now seen corresponding path program 68 times [2021-03-12 00:17:54,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:17:54,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558765217] [2021-03-12 00:17:54,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:17:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:17:54,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:17:54,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:54,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558765217] [2021-03-12 00:17:54,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086654333] [2021-03-12 00:17:54,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 183 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 183 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:17:54,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:17:54,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:17:54,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:17:54,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:17:54,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:54,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:17:54,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,238 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:17:54,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:54,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:17:54,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:17:54,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,241 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:17:54,241 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,241 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,243 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:17:54,244 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,244 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:17:54,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:17:54,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:17:54,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:17:54,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:17:54,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:17:54,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:17:54,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:17:54,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:17:54,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:17:54,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:17:54,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606166719] [2021-03-12 00:17:54,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:17:54,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:17:54,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:17:54,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:17:54,266 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:17:54,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 836 transitions, 31402 flow. Second operand has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:54,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:17:54,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:17:54,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:17:58,597 INFO L129 PetriNetUnfolder]: 6562/11768 cut-off events. [2021-03-12 00:17:58,597 INFO L130 PetriNetUnfolder]: For 484609/484624 co-relation queries the response was YES. [2021-03-12 00:17:58,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111481 conditions, 11768 events. 6562/11768 cut-off events. For 484609/484624 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 97952 event pairs, 1490 based on Foata normal form. 20/11788 useless extension candidates. Maximal degree in co-relation 111294. Up to 5775 conditions per place. [2021-03-12 00:17:58,815 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 593 selfloop transitions, 296 changer transitions 4/900 dead transitions. [2021-03-12 00:17:58,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 900 transitions, 34408 flow [2021-03-12 00:17:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:17:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:17:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:17:58,816 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:17:58,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:17:58,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:17:58,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:17:58,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:17:58,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:58,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:58,817 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:17:58,817 INFO L185 Difference]: Start difference. First operand has 531 places, 836 transitions, 31402 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:17:58,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 900 transitions, 34408 flow [2021-03-12 00:18:01,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 900 transitions, 33778 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-12 00:18:01,183 INFO L241 Difference]: Finished difference. Result has 536 places, 838 transitions, 31527 flow [2021-03-12 00:18:01,183 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30662, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31527, PETRI_PLACES=536, PETRI_TRANSITIONS=838} [2021-03-12 00:18:01,183 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 513 predicate places. [2021-03-12 00:18:01,183 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 838 transitions, 31527 flow [2021-03-12 00:18:01,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.22222222222222) internal successors, (209), 9 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:01,183 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:01,184 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:01,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 183 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable687 [2021-03-12 00:18:01,384 INFO L428 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash -970599029, now seen corresponding path program 69 times [2021-03-12 00:18:01,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:01,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78782816] [2021-03-12 00:18:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:01,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:01,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:01,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78782816] [2021-03-12 00:18:01,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415792175] [2021-03-12 00:18:01,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 184 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 184 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:01,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-12 00:18:01,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:18:01,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:01,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:18:01,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:01,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:18:01,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:01,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:18:01,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:01,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:01,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:01,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:01,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:01,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:01,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:01,486 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:01,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:01,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:01,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:18:01,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:01,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:01,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:01,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-03-12 00:18:01,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726326597] [2021-03-12 00:18:01,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-12 00:18:01,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:01,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-12 00:18:01,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-12 00:18:01,494 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:01,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 838 transitions, 31527 flow. Second operand has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:01,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:01,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:01,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:05,842 INFO L129 PetriNetUnfolder]: 6534/11756 cut-off events. [2021-03-12 00:18:05,842 INFO L130 PetriNetUnfolder]: For 481752/481767 co-relation queries the response was YES. [2021-03-12 00:18:06,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111029 conditions, 11756 events. 6534/11756 cut-off events. For 481752/481767 co-relation queries the response was YES. Maximal size of possible extension queue 1035. Compared 98074 event pairs, 1465 based on Foata normal form. 12/11768 useless extension candidates. Maximal degree in co-relation 110839. Up to 5775 conditions per place. [2021-03-12 00:18:06,068 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 587 selfloop transitions, 301 changer transitions 0/895 dead transitions. [2021-03-12 00:18:06,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 895 transitions, 34306 flow [2021-03-12 00:18:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:06,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:18:06,069 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:18:06,069 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:18:06,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:18:06,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:06,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:18:06,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:06,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:06,069 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:06,069 INFO L185 Difference]: Start difference. First operand has 536 places, 838 transitions, 31527 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:18:06,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 895 transitions, 34306 flow [2021-03-12 00:18:08,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 895 transitions, 33708 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-12 00:18:08,522 INFO L241 Difference]: Finished difference. Result has 537 places, 840 transitions, 31608 flow [2021-03-12 00:18:08,523 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30864, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=836, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31608, PETRI_PLACES=537, PETRI_TRANSITIONS=840} [2021-03-12 00:18:08,523 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 514 predicate places. [2021-03-12 00:18:08,523 INFO L480 AbstractCegarLoop]: Abstraction has has 537 places, 840 transitions, 31608 flow [2021-03-12 00:18:08,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.333333333333332) internal successors, (210), 9 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:08,523 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:08,523 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:08,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690,184 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:08,723 INFO L428 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:08,724 INFO L82 PathProgramCache]: Analyzing trace with hash -654502747, now seen corresponding path program 70 times [2021-03-12 00:18:08,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:08,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562637511] [2021-03-12 00:18:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:08,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:08,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:08,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:08,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562637511] [2021-03-12 00:18:08,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948810103] [2021-03-12 00:18:08,770 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 185 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-12 00:18:08,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 00:18:08,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:18:08,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:08,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 185 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:08,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,814 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:18:08,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,816 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-12 00:18:08,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:08,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:08,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:08,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:08,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,849 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:08,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:08,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:18:08,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:08,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,853 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:08,853 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,855 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:08,856 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:18:08,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:08,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:08,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:08,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:08,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:08,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:08,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:08,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-12 00:18:08,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28155052] [2021-03-12 00:18:08,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 00:18:08,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 00:18:08,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-12 00:18:08,880 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:08,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 840 transitions, 31608 flow. Second operand has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:08,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:08,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:08,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:13,050 INFO L129 PetriNetUnfolder]: 6496/11650 cut-off events. [2021-03-12 00:18:13,050 INFO L130 PetriNetUnfolder]: For 480780/480795 co-relation queries the response was YES. [2021-03-12 00:18:13,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110374 conditions, 11650 events. 6496/11650 cut-off events. For 480780/480795 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 96691 event pairs, 1466 based on Foata normal form. 10/11660 useless extension candidates. Maximal degree in co-relation 110184. Up to 6609 conditions per place. [2021-03-12 00:18:13,300 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 497 selfloop transitions, 368 changer transitions 6/878 dead transitions. [2021-03-12 00:18:13,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 878 transitions, 33964 flow [2021-03-12 00:18:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:18:13,301 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:18:13,301 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:18:13,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:18:13,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:13,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:18:13,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:13,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:13,302 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:13,302 INFO L185 Difference]: Start difference. First operand has 537 places, 840 transitions, 31608 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:18:13,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 878 transitions, 33964 flow [2021-03-12 00:18:15,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 878 transitions, 33352 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-12 00:18:15,722 INFO L241 Difference]: Finished difference. Result has 538 places, 834 transitions, 31559 flow [2021-03-12 00:18:15,723 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30860, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=836, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=368, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31559, PETRI_PLACES=538, PETRI_TRANSITIONS=834} [2021-03-12 00:18:15,723 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 515 predicate places. [2021-03-12 00:18:15,723 INFO L480 AbstractCegarLoop]: Abstraction has has 538 places, 834 transitions, 31559 flow [2021-03-12 00:18:15,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 23.2) internal successors, (232), 10 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:15,723 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:15,723 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:15,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691,185 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:15,923 INFO L428 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:15,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1684349491, now seen corresponding path program 71 times [2021-03-12 00:18:15,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:15,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756746195] [2021-03-12 00:18:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:15,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:15,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:15,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756746195] [2021-03-12 00:18:15,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83803652] [2021-03-12 00:18:15,957 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 186 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 186 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:15,976 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 00:18:15,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:18:15,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:15,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:18:15,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:15,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:15,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:15,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:15,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:15,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:15,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:15,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,024 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:16,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:18:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,027 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:16,028 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,029 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:16,029 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:18:16,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:16,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:16,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:16,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:16,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:16,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:16,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:16,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:18:16,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591692456] [2021-03-12 00:18:16,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:18:16,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:18:16,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:18:16,051 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:16,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 834 transitions, 31559 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:16,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:16,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:16,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:20,555 INFO L129 PetriNetUnfolder]: 6466/11588 cut-off events. [2021-03-12 00:18:20,555 INFO L130 PetriNetUnfolder]: For 487156/487171 co-relation queries the response was YES. [2021-03-12 00:18:20,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110152 conditions, 11588 events. 6466/11588 cut-off events. For 487156/487171 co-relation queries the response was YES. Maximal size of possible extension queue 1035. Compared 96184 event pairs, 1761 based on Foata normal form. 10/11598 useless extension candidates. Maximal degree in co-relation 109962. Up to 8157 conditions per place. [2021-03-12 00:18:20,788 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 610 selfloop transitions, 243 changer transitions 2/862 dead transitions. [2021-03-12 00:18:20,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 862 transitions, 33718 flow [2021-03-12 00:18:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2021-03-12 00:18:20,789 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7795918367346939 [2021-03-12 00:18:20,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 191 transitions. [2021-03-12 00:18:20,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 191 transitions. [2021-03-12 00:18:20,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:20,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 191 transitions. [2021-03-12 00:18:20,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:20,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:20,790 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:20,790 INFO L185 Difference]: Start difference. First operand has 538 places, 834 transitions, 31559 flow. Second operand 7 states and 191 transitions. [2021-03-12 00:18:20,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 862 transitions, 33718 flow [2021-03-12 00:18:22,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 862 transitions, 32982 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-12 00:18:22,992 INFO L241 Difference]: Finished difference. Result has 539 places, 830 transitions, 31206 flow [2021-03-12 00:18:22,993 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30754, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=832, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31206, PETRI_PLACES=539, PETRI_TRANSITIONS=830} [2021-03-12 00:18:22,993 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 516 predicate places. [2021-03-12 00:18:22,993 INFO L480 AbstractCegarLoop]: Abstraction has has 539 places, 830 transitions, 31206 flow [2021-03-12 00:18:22,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:22,993 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:22,993 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:23,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 186 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable694 [2021-03-12 00:18:23,193 INFO L428 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash -950956504, now seen corresponding path program 66 times [2021-03-12 00:18:23,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:23,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187822704] [2021-03-12 00:18:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:23,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:23,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:23,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:23,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187822704] [2021-03-12 00:18:23,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100585919] [2021-03-12 00:18:23,227 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 187 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 187 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:23,247 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-12 00:18:23,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 00:18:23,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:23,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:18:23,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:23,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:23,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:23,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:23,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:23,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,311 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:23,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:23,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:18:23,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:23,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,315 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:23,316 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,317 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-12 00:18:23,318 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-03-12 00:18:23,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:23,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:23,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:23,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:23,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:23,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:23,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:23,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:23,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:18:23,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33878763] [2021-03-12 00:18:23,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:18:23,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:23,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:18:23,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:18:23,339 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:23,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 830 transitions, 31206 flow. Second operand has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:23,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:23,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:23,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:27,835 INFO L129 PetriNetUnfolder]: 6442/11630 cut-off events. [2021-03-12 00:18:27,835 INFO L130 PetriNetUnfolder]: For 484423/484438 co-relation queries the response was YES. [2021-03-12 00:18:28,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110118 conditions, 11630 events. 6442/11630 cut-off events. For 484423/484438 co-relation queries the response was YES. Maximal size of possible extension queue 1067. Compared 98073 event pairs, 2099 based on Foata normal form. 8/11638 useless extension candidates. Maximal degree in co-relation 109927. Up to 7588 conditions per place. [2021-03-12 00:18:28,062 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 556 selfloop transitions, 295 changer transitions 1/859 dead transitions. [2021-03-12 00:18:28,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 859 transitions, 33392 flow [2021-03-12 00:18:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2021-03-12 00:18:28,063 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7918367346938775 [2021-03-12 00:18:28,063 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 194 transitions. [2021-03-12 00:18:28,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 194 transitions. [2021-03-12 00:18:28,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:28,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 194 transitions. [2021-03-12 00:18:28,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:28,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:28,064 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:28,064 INFO L185 Difference]: Start difference. First operand has 539 places, 830 transitions, 31206 flow. Second operand 7 states and 194 transitions. [2021-03-12 00:18:28,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 859 transitions, 33392 flow [2021-03-12 00:18:30,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 859 transitions, 33114 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-12 00:18:30,378 INFO L241 Difference]: Finished difference. Result has 541 places, 834 transitions, 31664 flow [2021-03-12 00:18:30,379 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=30928, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=290, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31664, PETRI_PLACES=541, PETRI_TRANSITIONS=834} [2021-03-12 00:18:30,379 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 518 predicate places. [2021-03-12 00:18:30,379 INFO L480 AbstractCegarLoop]: Abstraction has has 541 places, 834 transitions, 31664 flow [2021-03-12 00:18:30,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.272727272727273) internal successors, (256), 11 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:30,379 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:30,379 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:30,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 187 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable697 [2021-03-12 00:18:30,579 INFO L428 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:30,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1905889371, now seen corresponding path program 72 times [2021-03-12 00:18:30,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:30,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407484372] [2021-03-12 00:18:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:30,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:30,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:30,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:30,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:30,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:30,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:30,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:30,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407484372] [2021-03-12 00:18:30,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:18:30,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:18:30,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985550397] [2021-03-12 00:18:30,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:18:30,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:30,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:18:30,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:18:30,614 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:30,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 834 transitions, 31664 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:30,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:30,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:30,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:34,963 INFO L129 PetriNetUnfolder]: 6422/11479 cut-off events. [2021-03-12 00:18:34,964 INFO L130 PetriNetUnfolder]: For 495104/495119 co-relation queries the response was YES. [2021-03-12 00:18:35,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110188 conditions, 11479 events. 6422/11479 cut-off events. For 495104/495119 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 94925 event pairs, 1777 based on Foata normal form. 10/11489 useless extension candidates. Maximal degree in co-relation 109996. Up to 8119 conditions per place. [2021-03-12 00:18:35,181 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 625 selfloop transitions, 232 changer transitions 1/865 dead transitions. [2021-03-12 00:18:35,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 865 transitions, 33898 flow [2021-03-12 00:18:35,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2021-03-12 00:18:35,182 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7755102040816326 [2021-03-12 00:18:35,182 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 190 transitions. [2021-03-12 00:18:35,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 190 transitions. [2021-03-12 00:18:35,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:35,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 190 transitions. [2021-03-12 00:18:35,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:35,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:35,183 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:35,183 INFO L185 Difference]: Start difference. First operand has 541 places, 834 transitions, 31664 flow. Second operand 7 states and 190 transitions. [2021-03-12 00:18:35,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 865 transitions, 33898 flow [2021-03-12 00:18:37,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 865 transitions, 33378 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-12 00:18:37,602 INFO L241 Difference]: Finished difference. Result has 545 places, 832 transitions, 31546 flow [2021-03-12 00:18:37,602 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=31110, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=232, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31546, PETRI_PLACES=545, PETRI_TRANSITIONS=832} [2021-03-12 00:18:37,602 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 522 predicate places. [2021-03-12 00:18:37,603 INFO L480 AbstractCegarLoop]: Abstraction has has 545 places, 832 transitions, 31546 flow [2021-03-12 00:18:37,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:37,603 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:37,603 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:37,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2021-03-12 00:18:37,603 INFO L428 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:37,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:37,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1537727798, now seen corresponding path program 67 times [2021-03-12 00:18:37,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:37,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292878959] [2021-03-12 00:18:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:37,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:37,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:37,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:37,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:37,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:37,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292878959] [2021-03-12 00:18:37,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109545339] [2021-03-12 00:18:37,640 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 188 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 188 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:37,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:37,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:18:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:37,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-12 00:18:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:37,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:37,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:18:37,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:37,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:37,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-12 00:18:37,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:37,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:37,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:37,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:37,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:37,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:37,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:37,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:37,728 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:37,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:37,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:37,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:37,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:18:37,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:37,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:37,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:37,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:18:37,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963202442] [2021-03-12 00:18:37,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:18:37,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:18:37,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:18:37,734 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:37,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 832 transitions, 31546 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:37,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:37,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:37,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:42,076 INFO L129 PetriNetUnfolder]: 6395/11530 cut-off events. [2021-03-12 00:18:42,077 INFO L130 PetriNetUnfolder]: For 503336/503351 co-relation queries the response was YES. [2021-03-12 00:18:42,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110468 conditions, 11530 events. 6395/11530 cut-off events. For 503336/503351 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 97002 event pairs, 2063 based on Foata normal form. 16/11546 useless extension candidates. Maximal degree in co-relation 110276. Up to 7562 conditions per place. [2021-03-12 00:18:42,301 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 520 selfloop transitions, 326 changer transitions 0/853 dead transitions. [2021-03-12 00:18:42,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 853 transitions, 33558 flow [2021-03-12 00:18:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:42,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:42,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2021-03-12 00:18:42,302 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7959183673469388 [2021-03-12 00:18:42,302 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 195 transitions. [2021-03-12 00:18:42,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 195 transitions. [2021-03-12 00:18:42,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:42,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 195 transitions. [2021-03-12 00:18:42,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.857142857142858) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:42,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:42,303 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:42,303 INFO L185 Difference]: Start difference. First operand has 545 places, 832 transitions, 31546 flow. Second operand 7 states and 195 transitions. [2021-03-12 00:18:42,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 853 transitions, 33558 flow [2021-03-12 00:18:44,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 853 transitions, 33091 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-12 00:18:44,857 INFO L241 Difference]: Finished difference. Result has 542 places, 830 transitions, 31671 flow [2021-03-12 00:18:44,857 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=31019, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31671, PETRI_PLACES=542, PETRI_TRANSITIONS=830} [2021-03-12 00:18:44,857 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 519 predicate places. [2021-03-12 00:18:44,857 INFO L480 AbstractCegarLoop]: Abstraction has has 542 places, 830 transitions, 31671 flow [2021-03-12 00:18:44,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:44,857 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:44,857 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:45,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 188 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable701 [2021-03-12 00:18:45,058 INFO L428 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:45,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:45,058 INFO L82 PathProgramCache]: Analyzing trace with hash -88422639, now seen corresponding path program 73 times [2021-03-12 00:18:45,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:45,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74730540] [2021-03-12 00:18:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:45,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:45,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-12 00:18:45,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-12 00:18:45,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:45,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74730540] [2021-03-12 00:18:45,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225814068] [2021-03-12 00:18:45,094 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 189 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 189 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:45,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 00:18:45,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 00:18:45,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:45,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:45,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:45,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:45,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:45,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:45,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:45,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:45,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:45,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:45,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:45,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:45,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:45,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:45,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:45,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:45,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:45,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-12 00:18:45,185 INFO L142 QuantifierPusher]: treesize reduction 3, result has 86.4 percent of original size [2021-03-12 00:18:45,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-12 00:18:45,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-12 00:18:45,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-12 00:18:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-12 00:18:45,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:45,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:45,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 00:18:45,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-12 00:18:45,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661956331] [2021-03-12 00:18:45,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-12 00:18:45,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:45,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-12 00:18:45,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-12 00:18:45,193 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:45,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 830 transitions, 31671 flow. Second operand has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:45,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:45,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:45,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:49,385 INFO L129 PetriNetUnfolder]: 6429/11517 cut-off events. [2021-03-12 00:18:49,385 INFO L130 PetriNetUnfolder]: For 505148/505163 co-relation queries the response was YES. [2021-03-12 00:18:49,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111240 conditions, 11517 events. 6429/11517 cut-off events. For 505148/505163 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 95440 event pairs, 1724 based on Foata normal form. 8/11525 useless extension candidates. Maximal degree in co-relation 111050. Up to 8089 conditions per place. [2021-03-12 00:18:49,617 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 607 selfloop transitions, 250 changer transitions 0/864 dead transitions. [2021-03-12 00:18:49,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 864 transitions, 34059 flow [2021-03-12 00:18:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2021-03-12 00:18:49,618 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7877551020408163 [2021-03-12 00:18:49,618 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 193 transitions. [2021-03-12 00:18:49,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 193 transitions. [2021-03-12 00:18:49,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:49,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 193 transitions. [2021-03-12 00:18:49,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:49,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:49,619 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:49,619 INFO L185 Difference]: Start difference. First operand has 542 places, 830 transitions, 31671 flow. Second operand 7 states and 193 transitions. [2021-03-12 00:18:49,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 864 transitions, 34059 flow [2021-03-12 00:18:52,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 864 transitions, 33559 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-12 00:18:52,154 INFO L241 Difference]: Finished difference. Result has 545 places, 836 transitions, 31900 flow [2021-03-12 00:18:52,154 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=31157, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=31900, PETRI_PLACES=545, PETRI_TRANSITIONS=836} [2021-03-12 00:18:52,154 INFO L335 CegarLoopForPetriNet]: 23 programPoint places, 522 predicate places. [2021-03-12 00:18:52,154 INFO L480 AbstractCegarLoop]: Abstraction has has 545 places, 836 transitions, 31900 flow [2021-03-12 00:18:52,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 23.363636363636363) internal successors, (257), 11 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:52,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-12 00:18:52,154 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-12 00:18:52,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702,189 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 00:18:52,355 INFO L428 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 00:18:52,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 00:18:52,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1670107371, now seen corresponding path program 74 times [2021-03-12 00:18:52,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 00:18:52,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984273627] [2021-03-12 00:18:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 00:18:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 00:18:52,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:52,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:52,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-12 00:18:52,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:52,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-12 00:18:52,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-12 00:18:52,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 00:18:52,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-12 00:18:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 00:18:52,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984273627] [2021-03-12 00:18:52,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 00:18:52,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-12 00:18:52,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754856424] [2021-03-12 00:18:52,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-12 00:18:52,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 00:18:52,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-12 00:18:52,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-12 00:18:52,387 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 35 [2021-03-12 00:18:52,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 836 transitions, 31900 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:52,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-12 00:18:52,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 35 [2021-03-12 00:18:52,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-12 00:18:56,524 INFO L129 PetriNetUnfolder]: 6405/11457 cut-off events. [2021-03-12 00:18:56,524 INFO L130 PetriNetUnfolder]: For 520371/520386 co-relation queries the response was YES. [2021-03-12 00:18:56,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111635 conditions, 11457 events. 6405/11457 cut-off events. For 520371/520386 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 94661 event pairs, 1712 based on Foata normal form. 8/11465 useless extension candidates. Maximal degree in co-relation 111443. Up to 8089 conditions per place. [2021-03-12 00:18:56,750 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 616 selfloop transitions, 241 changer transitions 1/865 dead transitions. [2021-03-12 00:18:56,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 865 transitions, 34118 flow [2021-03-12 00:18:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 00:18:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-12 00:18:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2021-03-12 00:18:56,752 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7673469387755102 [2021-03-12 00:18:56,752 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 188 transitions. [2021-03-12 00:18:56,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 188 transitions. [2021-03-12 00:18:56,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-12 00:18:56,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 188 transitions. [2021-03-12 00:18:56,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 7 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:56,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:56,752 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 00:18:56,752 INFO L185 Difference]: Start difference. First operand has 545 places, 836 transitions, 31900 flow. Second operand 7 states and 188 transitions. [2021-03-12 00:18:56,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 865 transitions, 34118 flow Received shutdown request... [2021-03-12 00:18:58,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2021-03-12 00:18:58,981 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-12 00:18:58,986 WARN L224 ceAbstractionStarter]: Timeout [2021-03-12 00:18:58,986 INFO L202 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 12:18:58 BasicIcfg [2021-03-12 00:18:58,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 00:18:58,987 INFO L168 Benchmark]: Toolchain (without parser) took 812647.05 ms. Allocated memory was 255.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 236.2 MB in the beginning and 8.5 GB in the end (delta: -8.3 GB). Peak memory consumption was 7.5 GB. Max. memory is 16.0 GB. [2021-03-12 00:18:58,987 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 00:18:58,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.7 MB in the beginning and 234.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 00:18:58,987 INFO L168 Benchmark]: Boogie Preprocessor took 31.02 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 233.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 00:18:58,987 INFO L168 Benchmark]: RCFGBuilder took 491.97 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 222.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. [2021-03-12 00:18:58,988 INFO L168 Benchmark]: TraceAbstraction took 812079.17 ms. Allocated memory was 255.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 222.3 MB in the beginning and 8.5 GB in the end (delta: -8.3 GB). Peak memory consumption was 7.4 GB. Max. memory is 16.0 GB. [2021-03-12 00:18:58,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 162.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 36.73 ms. Allocated memory is still 255.9 MB. Free memory was 235.7 MB in the beginning and 234.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.02 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 233.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 491.97 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 222.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 812079.17 ms. Allocated memory was 255.9 MB in the beginning and 15.7 GB in the end (delta: 15.4 GB). Free memory was 222.3 MB in the beginning and 8.5 GB in the end (delta: -8.3 GB). Peak memory consumption was 7.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 317.5ms, 27 PlacesBefore, 23 PlacesAfterwards, 23 TransitionsBefore, 19 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 72, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 128). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 811946.5ms, OverallIterations: 351, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 736911.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 386.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5306 SDtfs, 9799 SDslu, 9703 SDs, 0 SdLazy, 41234 SolverSat, 1747 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17449.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6176 GetRequests, 2284 SyntacticMatches, 145 SemanticMatches, 3747 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3041 ImplicationChecksByTransitivity, 40892.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31900occurred in iteration=350, InterpolantAutomatonStates: 2586, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 918.4ms SsaConstructionTime, 1816.5ms SatisfiabilityAnalysisTime, 29996.5ms InterpolantComputationTime, 7649 NumberOfCodeBlocks, 7649 NumberOfCodeBlocksAsserted, 655 NumberOfCheckSat, 7110 ConstructedInterpolants, 0 QuantifiedInterpolants, 44906 SizeOfPredicates, 938 NumberOfNonLiveVariables, 12188 ConjunctsInSsa, 1596 ConjunctsInUnsatCore, 539 InterpolantComputations, 163 PerfectInterpolantSequences, 195/665 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown