/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 10:21:22,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 10:21:22,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 10:21:22,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 10:21:22,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 10:21:22,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 10:21:22,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 10:21:22,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 10:21:22,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 10:21:22,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 10:21:22,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 10:21:22,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 10:21:22,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 10:21:22,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 10:21:22,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 10:21:22,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 10:21:22,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 10:21:22,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 10:21:22,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 10:21:22,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 10:21:22,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 10:21:22,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 10:21:22,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 10:21:22,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 10:21:22,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 10:21:22,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 10:21:22,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 10:21:22,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 10:21:22,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 10:21:22,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 10:21:22,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 10:21:22,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 10:21:22,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 10:21:22,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 10:21:22,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 10:21:22,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 10:21:22,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 10:21:22,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 10:21:22,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 10:21:22,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 10:21:22,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 10:21:22,961 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 10:21:22,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 10:21:22,961 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 10:21:22,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 10:21:22,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 10:21:22,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 10:21:22,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 10:21:22,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 10:21:22,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 10:21:22,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 10:21:22,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 10:21:22,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 10:21:22,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 10:21:22,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 10:21:22,964 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 10:21:23,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 10:21:23,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 10:21:23,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 10:21:23,262 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 10:21:23,262 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 10:21:23,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2021-03-25 10:21:23,264 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2021-03-25 10:21:23,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 10:21:23,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 10:21:23,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 10:21:23,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 10:21:23,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 10:21:23,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 10:21:23,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 10:21:23,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 10:21:23,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 10:21:23,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... [2021-03-25 10:21:23,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 10:21:23,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 10:21:23,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 10:21:23,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 10:21:23,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 10:21:23,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 10:21:23,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 10:21:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 10:21:23,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 10:21:23,422 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 10:21:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 10:21:23,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 10:21:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 10:21:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 10:21:23,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 10:21:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 10:21:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 10:21:23,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-25 10:21:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-25 10:21:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-25 10:21:23,424 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 10:21:23,621 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 10:21:23,621 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 10:21:23,622 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 10:21:23 BoogieIcfgContainer [2021-03-25 10:21:23,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 10:21:23,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 10:21:23,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 10:21:23,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 10:21:23,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 10:21:23" (1/2) ... [2021-03-25 10:21:23,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dfdb958 and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 10:21:23, skipping insertion in model container [2021-03-25 10:21:23,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 10:21:23" (2/2) ... [2021-03-25 10:21:23,635 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-4.wvr.bpl [2021-03-25 10:21:23,640 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 10:21:23,643 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 10:21:23,643 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 10:21:23,717 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 10:21:23,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 10:21:23,748 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 10:21:23,749 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 10:21:23,749 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 10:21:23,749 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 10:21:23,749 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 10:21:23,749 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 10:21:23,749 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 10:21:23,749 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 10:21:23,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 36 transitions, 104 flow [2021-03-25 10:21:23,777 INFO L129 PetriNetUnfolder]: 4/32 cut-off events. [2021-03-25 10:21:23,778 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 10:21:23,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 4/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-25 10:21:23,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 36 transitions, 104 flow [2021-03-25 10:21:23,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 30 transitions, 84 flow [2021-03-25 10:21:23,785 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:23,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 84 flow [2021-03-25 10:21:23,795 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 84 flow [2021-03-25 10:21:23,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 84 flow [2021-03-25 10:21:23,808 INFO L129 PetriNetUnfolder]: 4/30 cut-off events. [2021-03-25 10:21:23,808 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 10:21:23,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 30 events. 4/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-25 10:21:23,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 288 [2021-03-25 10:21:24,054 INFO L154 LiptonReduction]: Checked pairs total: 120 [2021-03-25 10:21:24,054 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 10:21:24,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 10:21:24,065 INFO L129 PetriNetUnfolder]: 4/18 cut-off events. [2021-03-25 10:21:24,065 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 10:21:24,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:24,066 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:24,066 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:24,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1200078189, now seen corresponding path program 1 times [2021-03-25 10:21:24,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:24,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6182880] [2021-03-25 10:21:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:24,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:24,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6182880] [2021-03-25 10:21:24,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 10:21:24,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 10:21:24,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919983420] [2021-03-25 10:21:24,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 10:21:24,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:24,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 10:21:24,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 10:21:24,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 47 [2021-03-25 10:21:24,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:24,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 47 [2021-03-25 10:21:24,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:24,234 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([116] L58-1-->L58-1: Formula: (and (< 0 v_counter_38) (= v_counter_37 (+ (* v_C_18 (- 1)) v_counter_38)) (< v_j2_11 v_M2_4) (= (+ v_j2_11 1) v_j2_10)) InVars {counter=v_counter_38, j2=v_j2_11, M2=v_M2_4, C=v_C_18} OutVars{counter=v_counter_37, j2=v_j2_10, M2=v_M2_4, C=v_C_18} AuxVars[] AssignedVars[counter, j2][15], [thread4Thread1of1ForFork3InUse, 49#true, 17#L24-1true, 18#L76true, 20#L58-1true, 4#L35-1true, 38#L47-1true, thread2Thread1of1ForFork1InUse, thread1Thread1of1ForFork0InUse, thread3Thread1of1ForFork2InUse]) [2021-03-25 10:21:24,234 INFO L384 tUnfolder$Statistics]: this new event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,234 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,234 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,234 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,240 INFO L129 PetriNetUnfolder]: 17/44 cut-off events. [2021-03-25 10:21:24,240 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-25 10:21:24,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 44 events. 17/44 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 71 event pairs, 0 based on Foata normal form. 3/42 useless extension candidates. Maximal degree in co-relation 60. Up to 20 conditions per place. [2021-03-25 10:21:24,242 INFO L132 encePairwiseOnDemand]: 41/47 looper letters, 5 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2021-03-25 10:21:24,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 82 flow [2021-03-25 10:21:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 10:21:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 10:21:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2021-03-25 10:21:24,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7801418439716312 [2021-03-25 10:21:24,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 110 transitions. [2021-03-25 10:21:24,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 110 transitions. [2021-03-25 10:21:24,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:24,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 110 transitions. [2021-03-25 10:21:24,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,262 INFO L185 Difference]: Start difference. First operand has 28 places, 19 transitions, 62 flow. Second operand 3 states and 110 transitions. [2021-03-25 10:21:24,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 82 flow [2021-03-25 10:21:24,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 21 transitions, 66 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-25 10:21:24,267 INFO L241 Difference]: Finished difference. Result has 23 places, 21 transitions, 69 flow [2021-03-25 10:21:24,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=23, PETRI_TRANSITIONS=21} [2021-03-25 10:21:24,269 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, -5 predicate places. [2021-03-25 10:21:24,269 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:24,270 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 21 transitions, 69 flow [2021-03-25 10:21:24,270 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 21 transitions, 69 flow [2021-03-25 10:21:24,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 21 transitions, 69 flow [2021-03-25 10:21:24,275 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([116] L58-1-->L58-1: Formula: (and (< 0 v_counter_38) (= v_counter_37 (+ (* v_C_18 (- 1)) v_counter_38)) (< v_j2_11 v_M2_4) (= (+ v_j2_11 1) v_j2_10)) InVars {counter=v_counter_38, j2=v_j2_11, M2=v_M2_4, C=v_C_18} OutVars{counter=v_counter_37, j2=v_j2_10, M2=v_M2_4, C=v_C_18} AuxVars[] AssignedVars[counter, j2][13], [17#L24-1true, 49#true, 18#L76true, 20#L58-1true, 4#L35-1true, Black: 51#(= counter 0), 38#L47-1true]) [2021-03-25 10:21:24,275 INFO L384 tUnfolder$Statistics]: this new event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,275 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,275 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,275 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,278 INFO L129 PetriNetUnfolder]: 17/44 cut-off events. [2021-03-25 10:21:24,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 10:21:24,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 44 events. 17/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 71 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 46. Up to 20 conditions per place. [2021-03-25 10:21:24,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-25 10:21:24,336 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:24,337 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 10:21:24,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 10:21:24,338 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 20 transitions, 67 flow [2021-03-25 10:21:24,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:24,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:24,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 10:21:24,339 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:24,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2125940079, now seen corresponding path program 1 times [2021-03-25 10:21:24,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:24,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456424539] [2021-03-25 10:21:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:24,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:21:24,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:24,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:24,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456424539] [2021-03-25 10:21:24,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 10:21:24,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 10:21:24,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793700684] [2021-03-25 10:21:24,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 10:21:24,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:24,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 10:21:24,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 10:21:24,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:24,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:24,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:24,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:24,423 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([116] L58-1-->L58-1: Formula: (and (< 0 v_counter_38) (= v_counter_37 (+ (* v_C_18 (- 1)) v_counter_38)) (< v_j2_11 v_M2_4) (= (+ v_j2_11 1) v_j2_10)) InVars {counter=v_counter_38, j2=v_j2_11, M2=v_M2_4, C=v_C_18} OutVars{counter=v_counter_37, j2=v_j2_10, M2=v_M2_4, C=v_C_18} AuxVars[] AssignedVars[counter, j2][17], [49#true, 18#L76true, 20#L58-1true, 4#L35-1true, Black: 51#(= counter 0), 38#L47-1true, 59#(and (<= N1 i1) (<= j2 i1) (= M2 N1)), 14#thread1EXITtrue]) [2021-03-25 10:21:24,423 INFO L384 tUnfolder$Statistics]: this new event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,423 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,424 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,424 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,430 INFO L129 PetriNetUnfolder]: 27/67 cut-off events. [2021-03-25 10:21:24,431 INFO L130 PetriNetUnfolder]: For 15/21 co-relation queries the response was YES. [2021-03-25 10:21:24,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 67 events. 27/67 cut-off events. For 15/21 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 154 event pairs, 0 based on Foata normal form. 5/65 useless extension candidates. Maximal degree in co-relation 99. Up to 29 conditions per place. [2021-03-25 10:21:24,432 INFO L132 encePairwiseOnDemand]: 43/48 looper letters, 10 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2021-03-25 10:21:24,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 29 transitions, 123 flow [2021-03-25 10:21:24,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 10:21:24,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 10:21:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2021-03-25 10:21:24,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-03-25 10:21:24,434 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 175 transitions. [2021-03-25 10:21:24,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 175 transitions. [2021-03-25 10:21:24,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:24,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 175 transitions. [2021-03-25 10:21:24,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,438 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,438 INFO L185 Difference]: Start difference. First operand has 22 places, 20 transitions, 67 flow. Second operand 5 states and 175 transitions. [2021-03-25 10:21:24,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 29 transitions, 123 flow [2021-03-25 10:21:24,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 10:21:24,440 INFO L241 Difference]: Finished difference. Result has 27 places, 24 transitions, 100 flow [2021-03-25 10:21:24,440 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2021-03-25 10:21:24,440 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2021-03-25 10:21:24,441 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:24,441 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 24 transitions, 100 flow [2021-03-25 10:21:24,441 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 24 transitions, 100 flow [2021-03-25 10:21:24,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 100 flow [2021-03-25 10:21:24,446 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([116] L58-1-->L58-1: Formula: (and (< 0 v_counter_38) (= v_counter_37 (+ (* v_C_18 (- 1)) v_counter_38)) (< v_j2_11 v_M2_4) (= (+ v_j2_11 1) v_j2_10)) InVars {counter=v_counter_38, j2=v_j2_11, M2=v_M2_4, C=v_C_18} OutVars{counter=v_counter_37, j2=v_j2_10, M2=v_M2_4, C=v_C_18} AuxVars[] AssignedVars[counter, j2][6], [18#L76true, 4#L35-1true, 20#L58-1true, Black: 51#(= counter 0), 38#L47-1true, 59#(and (<= N1 i1) (<= j2 i1) (= M2 N1)), Black: 56#(and (<= j2 i1) (= M2 N1)), 14#thread1EXITtrue]) [2021-03-25 10:21:24,447 INFO L384 tUnfolder$Statistics]: this new event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,447 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-25 10:21:24,447 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,447 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-25 10:21:24,449 INFO L129 PetriNetUnfolder]: 24/60 cut-off events. [2021-03-25 10:21:24,450 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-25 10:21:24,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 60 events. 24/60 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 135 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 94. Up to 27 conditions per place. [2021-03-25 10:21:24,451 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-25 10:21:24,453 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:24,453 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:24,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 10:21:24,453 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 100 flow [2021-03-25 10:21:24,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:24,454 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:24,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 10:21:24,454 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:24,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:24,455 INFO L82 PathProgramCache]: Analyzing trace with hash 2056143612, now seen corresponding path program 1 times [2021-03-25 10:21:24,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:24,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415570287] [2021-03-25 10:21:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:24,505 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:24,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,514 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:24,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:24,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:24,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415570287] [2021-03-25 10:21:24,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004074540] [2021-03-25 10:21:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:24,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 10:21:24,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:24,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:24,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:24,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:24,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:24,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:24,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:24,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:24,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:24,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:24,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:24,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 10:21:24,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:24,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:24,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:24,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-25 10:21:24,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382304703] [2021-03-25 10:21:24,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 10:21:24,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:24,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 10:21:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 10:21:24,749 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:24,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:24,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:24,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:24,798 INFO L129 PetriNetUnfolder]: 29/73 cut-off events. [2021-03-25 10:21:24,798 INFO L130 PetriNetUnfolder]: For 56/87 co-relation queries the response was YES. [2021-03-25 10:21:24,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 73 events. 29/73 cut-off events. For 56/87 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 180 event pairs, 1 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 140. Up to 35 conditions per place. [2021-03-25 10:21:24,799 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 10 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-25 10:21:24,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 175 flow [2021-03-25 10:21:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 10:21:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 10:21:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2021-03-25 10:21:24,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.734375 [2021-03-25 10:21:24,801 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 141 transitions. [2021-03-25 10:21:24,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 141 transitions. [2021-03-25 10:21:24,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:24,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 141 transitions. [2021-03-25 10:21:24,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,803 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,803 INFO L185 Difference]: Start difference. First operand has 27 places, 24 transitions, 100 flow. Second operand 4 states and 141 transitions. [2021-03-25 10:21:24,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 175 flow [2021-03-25 10:21:24,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 175 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 10:21:24,805 INFO L241 Difference]: Finished difference. Result has 32 places, 28 transitions, 156 flow [2021-03-25 10:21:24,805 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2021-03-25 10:21:24,805 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2021-03-25 10:21:24,805 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:24,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 28 transitions, 156 flow [2021-03-25 10:21:24,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 28 transitions, 156 flow [2021-03-25 10:21:24,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 156 flow [2021-03-25 10:21:24,812 INFO L129 PetriNetUnfolder]: 26/66 cut-off events. [2021-03-25 10:21:24,813 INFO L130 PetriNetUnfolder]: For 49/55 co-relation queries the response was YES. [2021-03-25 10:21:24,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 66 events. 26/66 cut-off events. For 49/55 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 162 event pairs, 0 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 134. Up to 33 conditions per place. [2021-03-25 10:21:24,814 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-25 10:21:24,816 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:24,816 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:24,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 10:21:24,816 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 156 flow [2021-03-25 10:21:24,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:24,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:24,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:25,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-03-25 10:21:25,040 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:25,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1679353396, now seen corresponding path program 1 times [2021-03-25 10:21:25,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:25,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018440873] [2021-03-25 10:21:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,066 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:25,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,076 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:25,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:25,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:25,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018440873] [2021-03-25 10:21:25,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 10:21:25,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 10:21:25,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817771307] [2021-03-25 10:21:25,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 10:21:25,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:25,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 10:21:25,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 10:21:25,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:25,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:25,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:25,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:25,133 INFO L129 PetriNetUnfolder]: 56/116 cut-off events. [2021-03-25 10:21:25,133 INFO L130 PetriNetUnfolder]: For 160/180 co-relation queries the response was YES. [2021-03-25 10:21:25,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 116 events. 56/116 cut-off events. For 160/180 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 347 event pairs, 4 based on Foata normal form. 9/108 useless extension candidates. Maximal degree in co-relation 299. Up to 61 conditions per place. [2021-03-25 10:21:25,136 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 10 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2021-03-25 10:21:25,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 208 flow [2021-03-25 10:21:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 10:21:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 10:21:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2021-03-25 10:21:25,138 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.734375 [2021-03-25 10:21:25,139 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 141 transitions. [2021-03-25 10:21:25,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 141 transitions. [2021-03-25 10:21:25,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:25,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 141 transitions. [2021-03-25 10:21:25,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,141 INFO L185 Difference]: Start difference. First operand has 32 places, 28 transitions, 156 flow. Second operand 4 states and 141 transitions. [2021-03-25 10:21:25,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 208 flow [2021-03-25 10:21:25,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 10:21:25,145 INFO L241 Difference]: Finished difference. Result has 36 places, 29 transitions, 185 flow [2021-03-25 10:21:25,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2021-03-25 10:21:25,145 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2021-03-25 10:21:25,145 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:25,145 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 185 flow [2021-03-25 10:21:25,146 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 185 flow [2021-03-25 10:21:25,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 185 flow [2021-03-25 10:21:25,157 INFO L129 PetriNetUnfolder]: 33/81 cut-off events. [2021-03-25 10:21:25,157 INFO L130 PetriNetUnfolder]: For 73/80 co-relation queries the response was YES. [2021-03-25 10:21:25,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 81 events. 33/81 cut-off events. For 73/80 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 221 event pairs, 0 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 183. Up to 44 conditions per place. [2021-03-25 10:21:25,158 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 10:21:25,161 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:25,161 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:25,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 10:21:25,163 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 185 flow [2021-03-25 10:21:25,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:25,163 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:25,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 10:21:25,163 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:25,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1598815192, now seen corresponding path program 2 times [2021-03-25 10:21:25,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:25,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529026871] [2021-03-25 10:21:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,198 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:25,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:25,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529026871] [2021-03-25 10:21:25,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 10:21:25,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 10:21:25,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5639546] [2021-03-25 10:21:25,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 10:21:25,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:25,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 10:21:25,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 10:21:25,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:25,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:25,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:25,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:25,251 INFO L129 PetriNetUnfolder]: 46/94 cut-off events. [2021-03-25 10:21:25,252 INFO L130 PetriNetUnfolder]: For 215/245 co-relation queries the response was YES. [2021-03-25 10:21:25,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 94 events. 46/94 cut-off events. For 215/245 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 242 event pairs, 1 based on Foata normal form. 11/97 useless extension candidates. Maximal degree in co-relation 272. Up to 47 conditions per place. [2021-03-25 10:21:25,253 INFO L132 encePairwiseOnDemand]: 43/48 looper letters, 11 selfloop transitions, 4 changer transitions 6/38 dead transitions. [2021-03-25 10:21:25,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 38 transitions, 292 flow [2021-03-25 10:21:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 10:21:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 10:21:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2021-03-25 10:21:25,254 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-03-25 10:21:25,255 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 175 transitions. [2021-03-25 10:21:25,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 175 transitions. [2021-03-25 10:21:25,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:25,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 175 transitions. [2021-03-25 10:21:25,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,257 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,257 INFO L185 Difference]: Start difference. First operand has 36 places, 29 transitions, 185 flow. Second operand 5 states and 175 transitions. [2021-03-25 10:21:25,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 38 transitions, 292 flow [2021-03-25 10:21:25,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 275 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-25 10:21:25,263 INFO L241 Difference]: Finished difference. Result has 39 places, 27 transitions, 172 flow [2021-03-25 10:21:25,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2021-03-25 10:21:25,263 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2021-03-25 10:21:25,263 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:25,263 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 27 transitions, 172 flow [2021-03-25 10:21:25,263 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 27 transitions, 172 flow [2021-03-25 10:21:25,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 27 transitions, 172 flow [2021-03-25 10:21:25,268 INFO L129 PetriNetUnfolder]: 27/60 cut-off events. [2021-03-25 10:21:25,268 INFO L130 PetriNetUnfolder]: For 59/63 co-relation queries the response was YES. [2021-03-25 10:21:25,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 60 events. 27/60 cut-off events. For 59/63 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 0 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 152. Up to 35 conditions per place. [2021-03-25 10:21:25,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 10:21:25,272 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:25,272 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:25,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 10:21:25,275 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 172 flow [2021-03-25 10:21:25,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:25,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:25,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 10:21:25,276 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:25,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:25,276 INFO L82 PathProgramCache]: Analyzing trace with hash -714313040, now seen corresponding path program 1 times [2021-03-25 10:21:25,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:25,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854102098] [2021-03-25 10:21:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,307 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:25,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:25,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:25,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:25,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854102098] [2021-03-25 10:21:25,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356290588] [2021-03-25 10:21:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 10:21:25,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:25,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:25,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:25,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:25,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:25,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:25,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,438 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 10:21:25,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:25,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:25,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-25 10:21:25,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640044876] [2021-03-25 10:21:25,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 10:21:25,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:25,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 10:21:25,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 10:21:25,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:25,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:25,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:25,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:25,503 INFO L129 PetriNetUnfolder]: 45/86 cut-off events. [2021-03-25 10:21:25,503 INFO L130 PetriNetUnfolder]: For 175/190 co-relation queries the response was YES. [2021-03-25 10:21:25,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 86 events. 45/86 cut-off events. For 175/190 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 2 based on Foata normal form. 6/86 useless extension candidates. Maximal degree in co-relation 268. Up to 54 conditions per place. [2021-03-25 10:21:25,505 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 10 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2021-03-25 10:21:25,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 230 flow [2021-03-25 10:21:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 10:21:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 10:21:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2021-03-25 10:21:25,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7239583333333334 [2021-03-25 10:21:25,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 139 transitions. [2021-03-25 10:21:25,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 139 transitions. [2021-03-25 10:21:25,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:25,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 139 transitions. [2021-03-25 10:21:25,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,508 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,508 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 172 flow. Second operand 4 states and 139 transitions. [2021-03-25 10:21:25,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 230 flow [2021-03-25 10:21:25,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 225 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 10:21:25,510 INFO L241 Difference]: Finished difference. Result has 41 places, 28 transitions, 185 flow [2021-03-25 10:21:25,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2021-03-25 10:21:25,510 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2021-03-25 10:21:25,510 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:25,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 28 transitions, 185 flow [2021-03-25 10:21:25,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 28 transitions, 185 flow [2021-03-25 10:21:25,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 28 transitions, 185 flow [2021-03-25 10:21:25,517 INFO L129 PetriNetUnfolder]: 31/68 cut-off events. [2021-03-25 10:21:25,517 INFO L130 PetriNetUnfolder]: For 92/104 co-relation queries the response was YES. [2021-03-25 10:21:25,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 68 events. 31/68 cut-off events. For 92/104 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 146 event pairs, 2 based on Foata normal form. 4/69 useless extension candidates. Maximal degree in co-relation 191. Up to 40 conditions per place. [2021-03-25 10:21:25,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 10:21:25,520 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:25,520 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:25,520 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 10:21:25,521 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 185 flow [2021-03-25 10:21:25,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:25,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:25,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:25,736 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:25,736 INFO L82 PathProgramCache]: Analyzing trace with hash 466471632, now seen corresponding path program 1 times [2021-03-25 10:21:25,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:25,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774116570] [2021-03-25 10:21:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,755 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:25,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:25,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:25,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 10:21:25,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774116570] [2021-03-25 10:21:25,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145796107] [2021-03-25 10:21:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:25,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-25 10:21:25,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:25,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:25,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:25,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:25,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:25,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:25,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:25,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:25,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:25,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 10:21:25,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:25,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 10:21:25,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:25,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-25 10:21:25,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563789388] [2021-03-25 10:21:25,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 10:21:25,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:25,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 10:21:25,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 10:21:25,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:25,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:25,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:25,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:25,982 INFO L129 PetriNetUnfolder]: 92/188 cut-off events. [2021-03-25 10:21:25,982 INFO L130 PetriNetUnfolder]: For 408/444 co-relation queries the response was YES. [2021-03-25 10:21:25,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 188 events. 92/188 cut-off events. For 408/444 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 703 event pairs, 14 based on Foata normal form. 8/189 useless extension candidates. Maximal degree in co-relation 625. Up to 114 conditions per place. [2021-03-25 10:21:25,984 INFO L132 encePairwiseOnDemand]: 44/48 looper letters, 11 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2021-03-25 10:21:25,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 273 flow [2021-03-25 10:21:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 10:21:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 10:21:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2021-03-25 10:21:25,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-03-25 10:21:25,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 140 transitions. [2021-03-25 10:21:25,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 140 transitions. [2021-03-25 10:21:25,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:25,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 140 transitions. [2021-03-25 10:21:25,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,987 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:25,987 INFO L185 Difference]: Start difference. First operand has 41 places, 28 transitions, 185 flow. Second operand 4 states and 140 transitions. [2021-03-25 10:21:25,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 273 flow [2021-03-25 10:21:25,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 10:21:25,990 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 234 flow [2021-03-25 10:21:25,990 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-25 10:21:25,990 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 16 predicate places. [2021-03-25 10:21:25,990 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:25,990 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 234 flow [2021-03-25 10:21:25,991 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 234 flow [2021-03-25 10:21:25,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 234 flow [2021-03-25 10:21:26,006 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-25 10:21:26,006 INFO L130 PetriNetUnfolder]: For 229/258 co-relation queries the response was YES. [2021-03-25 10:21:26,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 153 events. 65/153 cut-off events. For 229/258 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 591 event pairs, 5 based on Foata normal form. 5/152 useless extension candidates. Maximal degree in co-relation 467. Up to 88 conditions per place. [2021-03-25 10:21:26,008 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-25 10:21:26,011 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:26,011 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:26,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 10:21:26,012 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 234 flow [2021-03-25 10:21:26,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 33.166666666666664) internal successors, (199), 6 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:26,012 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:26,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:26,228 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:26,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1051398322, now seen corresponding path program 2 times [2021-03-25 10:21:26,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:26,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219794864] [2021-03-25 10:21:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:26,255 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:26,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:26,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:26,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219794864] [2021-03-25 10:21:26,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 10:21:26,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 10:21:26,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899364775] [2021-03-25 10:21:26,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 10:21:26,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 10:21:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 10:21:26,267 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:26,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:26,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:26,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:26,316 INFO L129 PetriNetUnfolder]: 77/148 cut-off events. [2021-03-25 10:21:26,316 INFO L130 PetriNetUnfolder]: For 432/463 co-relation queries the response was YES. [2021-03-25 10:21:26,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 148 events. 77/148 cut-off events. For 432/463 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 485 event pairs, 9 based on Foata normal form. 14/158 useless extension candidates. Maximal degree in co-relation 545. Up to 93 conditions per place. [2021-03-25 10:21:26,318 INFO L132 encePairwiseOnDemand]: 43/48 looper letters, 9 selfloop transitions, 8 changer transitions 0/36 dead transitions. [2021-03-25 10:21:26,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 289 flow [2021-03-25 10:21:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 10:21:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 10:21:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2021-03-25 10:21:26,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7125 [2021-03-25 10:21:26,320 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 171 transitions. [2021-03-25 10:21:26,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 171 transitions. [2021-03-25 10:21:26,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:26,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 171 transitions. [2021-03-25 10:21:26,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,321 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,321 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 234 flow. Second operand 5 states and 171 transitions. [2021-03-25 10:21:26,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 289 flow [2021-03-25 10:21:26,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 36 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 10:21:26,324 INFO L241 Difference]: Finished difference. Result has 49 places, 33 transitions, 262 flow [2021-03-25 10:21:26,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=49, PETRI_TRANSITIONS=33} [2021-03-25 10:21:26,325 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 21 predicate places. [2021-03-25 10:21:26,325 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:26,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 33 transitions, 262 flow [2021-03-25 10:21:26,325 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 33 transitions, 262 flow [2021-03-25 10:21:26,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 33 transitions, 262 flow [2021-03-25 10:21:26,338 INFO L129 PetriNetUnfolder]: 50/110 cut-off events. [2021-03-25 10:21:26,338 INFO L130 PetriNetUnfolder]: For 192/212 co-relation queries the response was YES. [2021-03-25 10:21:26,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 110 events. 50/110 cut-off events. For 192/212 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 349 event pairs, 5 based on Foata normal form. 6/113 useless extension candidates. Maximal degree in co-relation 363. Up to 67 conditions per place. [2021-03-25 10:21:26,340 INFO L142 LiptonReduction]: Number of co-enabled transitions 202 [2021-03-25 10:21:26,342 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:26,342 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:26,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 10:21:26,343 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 33 transitions, 262 flow [2021-03-25 10:21:26,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,343 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:26,343 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:26,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 10:21:26,344 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:26,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:26,344 INFO L82 PathProgramCache]: Analyzing trace with hash 85381016, now seen corresponding path program 1 times [2021-03-25 10:21:26,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:26,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112555424] [2021-03-25 10:21:26,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:26,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:26,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,438 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-25 10:21:26,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:26,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112555424] [2021-03-25 10:21:26,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321692598] [2021-03-25 10:21:26,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:26,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 10:21:26,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:26,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:26,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:26,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:26,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:26,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:26,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:26,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:26,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:26,509 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-25 10:21:26,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,521 INFO L142 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-03-25 10:21:26,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:26,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:26,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-03-25 10:21:26,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099761836] [2021-03-25 10:21:26,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 10:21:26,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:26,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 10:21:26,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 10:21:26,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 48 [2021-03-25 10:21:26,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 33 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:26,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 48 [2021-03-25 10:21:26,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:26,621 INFO L129 PetriNetUnfolder]: 147/335 cut-off events. [2021-03-25 10:21:26,621 INFO L130 PetriNetUnfolder]: For 711/836 co-relation queries the response was YES. [2021-03-25 10:21:26,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 335 events. 147/335 cut-off events. For 711/836 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1708 event pairs, 10 based on Foata normal form. 47/381 useless extension candidates. Maximal degree in co-relation 1311. Up to 206 conditions per place. [2021-03-25 10:21:26,625 INFO L132 encePairwiseOnDemand]: 42/48 looper letters, 17 selfloop transitions, 37 changer transitions 0/69 dead transitions. [2021-03-25 10:21:26,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 69 transitions, 705 flow [2021-03-25 10:21:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 10:21:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 10:21:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2021-03-25 10:21:26,626 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7541666666666667 [2021-03-25 10:21:26,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 181 transitions. [2021-03-25 10:21:26,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 181 transitions. [2021-03-25 10:21:26,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:26,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 181 transitions. [2021-03-25 10:21:26,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,628 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,628 INFO L185 Difference]: Start difference. First operand has 49 places, 33 transitions, 262 flow. Second operand 5 states and 181 transitions. [2021-03-25 10:21:26,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 69 transitions, 705 flow [2021-03-25 10:21:26,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 69 transitions, 686 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 10:21:26,632 INFO L241 Difference]: Finished difference. Result has 52 places, 67 transitions, 694 flow [2021-03-25 10:21:26,632 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=694, PETRI_PLACES=52, PETRI_TRANSITIONS=67} [2021-03-25 10:21:26,632 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 24 predicate places. [2021-03-25 10:21:26,632 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:26,632 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 67 transitions, 694 flow [2021-03-25 10:21:26,632 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 67 transitions, 694 flow [2021-03-25 10:21:26,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 67 transitions, 694 flow [2021-03-25 10:21:26,661 INFO L129 PetriNetUnfolder]: 147/333 cut-off events. [2021-03-25 10:21:26,661 INFO L130 PetriNetUnfolder]: For 658/756 co-relation queries the response was YES. [2021-03-25 10:21:26,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 333 events. 147/333 cut-off events. For 658/756 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1699 event pairs, 8 based on Foata normal form. 11/342 useless extension candidates. Maximal degree in co-relation 1323. Up to 206 conditions per place. [2021-03-25 10:21:26,665 INFO L142 LiptonReduction]: Number of co-enabled transitions 532 [2021-03-25 10:21:26,672 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:26,672 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:26,672 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 10:21:26,672 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 67 transitions, 694 flow [2021-03-25 10:21:26,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:26,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:26,673 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:26,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:26,892 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:26,892 INFO L82 PathProgramCache]: Analyzing trace with hash -471501770, now seen corresponding path program 2 times [2021-03-25 10:21:26,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:26,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281574329] [2021-03-25 10:21:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:26,914 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 10:21:26,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:26,920 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-25 10:21:26,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:26,928 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-25 10:21:26,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:26,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:26,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:26,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:26,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:26,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:26,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281574329] [2021-03-25 10:21:26,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861187265] [2021-03-25 10:21:26,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:26,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 10:21:26,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:21:26,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 10:21:26,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:26,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:26,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:26,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:27,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:27,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:27,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:27,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:27,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:27,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 10:21:27,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:27,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:27,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:27,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:27,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:27,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:27,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:27,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:27,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:27,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:27,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-03-25 10:21:27,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631299898] [2021-03-25 10:21:27,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 10:21:27,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:27,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 10:21:27,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-25 10:21:27,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 48 [2021-03-25 10:21:27,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 67 transitions, 694 flow. Second operand has 11 states, 11 states have (on average 24.818181818181817) internal successors, (273), 11 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:27,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:27,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 48 [2021-03-25 10:21:27,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:27,854 INFO L129 PetriNetUnfolder]: 2751/4399 cut-off events. [2021-03-25 10:21:27,854 INFO L130 PetriNetUnfolder]: For 17745/17976 co-relation queries the response was YES. [2021-03-25 10:21:27,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21470 conditions, 4399 events. 2751/4399 cut-off events. For 17745/17976 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 25840 event pairs, 273 based on Foata normal form. 580/4976 useless extension candidates. Maximal degree in co-relation 20926. Up to 2401 conditions per place. [2021-03-25 10:21:27,898 INFO L132 encePairwiseOnDemand]: 42/48 looper letters, 193 selfloop transitions, 151 changer transitions 4/357 dead transitions. [2021-03-25 10:21:27,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 357 transitions, 4156 flow [2021-03-25 10:21:27,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 10:21:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 10:21:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 567 transitions. [2021-03-25 10:21:27,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6217105263157895 [2021-03-25 10:21:27,900 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 567 transitions. [2021-03-25 10:21:27,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 567 transitions. [2021-03-25 10:21:27,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:27,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 567 transitions. [2021-03-25 10:21:27,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 29.842105263157894) internal successors, (567), 19 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:27,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 48.0) internal successors, (960), 20 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:27,905 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 48.0) internal successors, (960), 20 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:27,905 INFO L185 Difference]: Start difference. First operand has 52 places, 67 transitions, 694 flow. Second operand 19 states and 567 transitions. [2021-03-25 10:21:27,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 357 transitions, 4156 flow [2021-03-25 10:21:27,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 357 transitions, 3646 flow, removed 255 selfloop flow, removed 0 redundant places. [2021-03-25 10:21:27,933 INFO L241 Difference]: Finished difference. Result has 81 places, 219 transitions, 2672 flow [2021-03-25 10:21:27,934 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2672, PETRI_PLACES=81, PETRI_TRANSITIONS=219} [2021-03-25 10:21:27,934 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 53 predicate places. [2021-03-25 10:21:27,934 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:27,934 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 219 transitions, 2672 flow [2021-03-25 10:21:27,934 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 219 transitions, 2672 flow [2021-03-25 10:21:27,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 219 transitions, 2672 flow [2021-03-25 10:21:28,092 INFO L129 PetriNetUnfolder]: 616/1343 cut-off events. [2021-03-25 10:21:28,092 INFO L130 PetriNetUnfolder]: For 10762/11889 co-relation queries the response was YES. [2021-03-25 10:21:28,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6954 conditions, 1343 events. 616/1343 cut-off events. For 10762/11889 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 9392 event pairs, 54 based on Foata normal form. 30/1319 useless extension candidates. Maximal degree in co-relation 6623. Up to 403 conditions per place. [2021-03-25 10:21:28,119 INFO L142 LiptonReduction]: Number of co-enabled transitions 1446 [2021-03-25 10:21:28,253 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 10:21:28,253 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 10:21:28,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 319 [2021-03-25 10:21:28,254 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 219 transitions, 2686 flow [2021-03-25 10:21:28,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 24.818181818181817) internal successors, (273), 11 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:28,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:28,254 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:28,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-03-25 10:21:28,477 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:28,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1049116634, now seen corresponding path program 3 times [2021-03-25 10:21:28,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:28,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856322863] [2021-03-25 10:21:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:28,496 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 10:21:28,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:28,503 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-25 10:21:28,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:28,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:28,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:28,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:28,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:28,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856322863] [2021-03-25 10:21:28,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43262370] [2021-03-25 10:21:28,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:28,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 10:21:28,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:21:28,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 10:21:28,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:28,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:28,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:28,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:28,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:28,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:28,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:28,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:28,593 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-25 10:21:28,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:28,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:28,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:28,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:28,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:28,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:28,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:28,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:28,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:28,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:28,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:28,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:28,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:28,621 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-25 10:21:28,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:28,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:28,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-03-25 10:21:28,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52975897] [2021-03-25 10:21:28,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 10:21:28,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:28,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 10:21:28,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 10:21:28,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 49 [2021-03-25 10:21:28,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 219 transitions, 2686 flow. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:28,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:28,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 49 [2021-03-25 10:21:28,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:29,516 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L47-1-->thread3EXIT: Formula: (not (< v_j1_14 v_M1_8)) InVars {j1=v_j1_14, M1=v_M1_8} OutVars{j1=v_j1_14, M1=v_M1_8} AuxVars[] AssignedVars[][68], [11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 27#thread3EXITtrue, Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 33#thread4EXITtrue, 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), 310#true, 247#(<= N1 i1), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), 185#true, 57#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), Black: 246#(and (= i2 i1) (= N2 N1)), 252#true, Black: 56#(and (<= j2 i1) (= M2 N1)), 125#(<= M1 j1), Black: 59#(and (<= N1 i1) (<= j2 i1) (= M2 N1)), 63#true]) [2021-03-25 10:21:29,516 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-03-25 10:21:29,516 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-25 10:21:29,516 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-25 10:21:29,516 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-25 10:21:29,589 INFO L129 PetriNetUnfolder]: 3805/6579 cut-off events. [2021-03-25 10:21:29,589 INFO L130 PetriNetUnfolder]: For 73048/75821 co-relation queries the response was YES. [2021-03-25 10:21:29,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40096 conditions, 6579 events. 3805/6579 cut-off events. For 73048/75821 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 48018 event pairs, 464 based on Foata normal form. 317/6510 useless extension candidates. Maximal degree in co-relation 39096. Up to 1844 conditions per place. [2021-03-25 10:21:29,834 INFO L132 encePairwiseOnDemand]: 43/49 looper letters, 223 selfloop transitions, 97 changer transitions 3/404 dead transitions. [2021-03-25 10:21:29,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 404 transitions, 5577 flow [2021-03-25 10:21:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 10:21:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 10:21:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 10:21:29,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6621315192743764 [2021-03-25 10:21:29,836 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 10:21:29,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 10:21:29,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:29,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 10:21:29,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:29,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:29,838 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:29,839 INFO L185 Difference]: Start difference. First operand has 80 places, 219 transitions, 2686 flow. Second operand 9 states and 292 transitions. [2021-03-25 10:21:29,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 404 transitions, 5577 flow [2021-03-25 10:21:29,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 404 transitions, 4979 flow, removed 284 selfloop flow, removed 2 redundant places. [2021-03-25 10:21:29,976 INFO L241 Difference]: Finished difference. Result has 91 places, 306 transitions, 3909 flow [2021-03-25 10:21:29,976 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=2243, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3909, PETRI_PLACES=91, PETRI_TRANSITIONS=306} [2021-03-25 10:21:29,976 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 63 predicate places. [2021-03-25 10:21:29,976 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:29,976 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 306 transitions, 3909 flow [2021-03-25 10:21:29,977 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 306 transitions, 3909 flow [2021-03-25 10:21:29,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 306 transitions, 3909 flow [2021-03-25 10:21:30,415 INFO L129 PetriNetUnfolder]: 1504/3255 cut-off events. [2021-03-25 10:21:30,415 INFO L130 PetriNetUnfolder]: For 42319/44634 co-relation queries the response was YES. [2021-03-25 10:21:30,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19115 conditions, 3255 events. 1504/3255 cut-off events. For 42319/44634 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 27244 event pairs, 146 based on Foata normal form. 133/3243 useless extension candidates. Maximal degree in co-relation 18314. Up to 912 conditions per place. [2021-03-25 10:21:30,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 2006 [2021-03-25 10:21:30,561 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:30,561 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:30,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 585 [2021-03-25 10:21:30,562 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 306 transitions, 3909 flow [2021-03-25 10:21:30,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:30,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:30,562 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:30,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:30,784 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:30,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:30,785 INFO L82 PathProgramCache]: Analyzing trace with hash 709385300, now seen corresponding path program 4 times [2021-03-25 10:21:30,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:30,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69713181] [2021-03-25 10:21:30,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:30,800 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 10:21:30,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:30,806 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:21:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,812 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:30,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:30,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 10:21:30,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69713181] [2021-03-25 10:21:30,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495793785] [2021-03-25 10:21:30,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:30,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-25 10:21:30,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:21:30,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 10:21:30,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:30,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:30,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 10:21:30,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:30,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:30,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:30,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:30,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:30,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:30,907 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-25 10:21:30,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:30,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:30,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:30,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:21:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:30,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:30,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:30,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:30,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:30,928 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-25 10:21:30,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:30,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-25 10:21:30,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:30,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-03-25 10:21:30,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791793196] [2021-03-25 10:21:30,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 10:21:30,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:30,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 10:21:30,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-25 10:21:30,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 49 [2021-03-25 10:21:30,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 306 transitions, 3909 flow. Second operand has 9 states, 9 states have (on average 28.333333333333332) internal successors, (255), 9 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:30,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:30,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 49 [2021-03-25 10:21:30,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:33,198 INFO L129 PetriNetUnfolder]: 8121/14325 cut-off events. [2021-03-25 10:21:33,198 INFO L130 PetriNetUnfolder]: For 217639/223447 co-relation queries the response was YES. [2021-03-25 10:21:33,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94849 conditions, 14325 events. 8121/14325 cut-off events. For 217639/223447 co-relation queries the response was YES. Maximal size of possible extension queue 1254. Compared 121712 event pairs, 836 based on Foata normal form. 837/14594 useless extension candidates. Maximal degree in co-relation 92606. Up to 3816 conditions per place. [2021-03-25 10:21:33,408 INFO L132 encePairwiseOnDemand]: 42/49 looper letters, 700 selfloop transitions, 118 changer transitions 35/934 dead transitions. [2021-03-25 10:21:33,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 934 transitions, 14233 flow [2021-03-25 10:21:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 10:21:33,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 10:21:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 283 transitions. [2021-03-25 10:21:33,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6417233560090703 [2021-03-25 10:21:33,410 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 283 transitions. [2021-03-25 10:21:33,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 283 transitions. [2021-03-25 10:21:33,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:33,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 283 transitions. [2021-03-25 10:21:33,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:33,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:33,412 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:33,475 INFO L185 Difference]: Start difference. First operand has 91 places, 306 transitions, 3909 flow. Second operand 9 states and 283 transitions. [2021-03-25 10:21:33,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 934 transitions, 14233 flow [2021-03-25 10:21:33,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 934 transitions, 12452 flow, removed 880 selfloop flow, removed 2 redundant places. [2021-03-25 10:21:33,862 INFO L241 Difference]: Finished difference. Result has 102 places, 419 transitions, 5432 flow [2021-03-25 10:21:33,863 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=3478, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5432, PETRI_PLACES=102, PETRI_TRANSITIONS=419} [2021-03-25 10:21:33,863 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 74 predicate places. [2021-03-25 10:21:33,863 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:33,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 419 transitions, 5432 flow [2021-03-25 10:21:33,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 419 transitions, 5432 flow [2021-03-25 10:21:33,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 419 transitions, 5432 flow [2021-03-25 10:21:34,923 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([114] thread3EXIT-->L79: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar2_4) (= 3 v_thread3Thread1of1ForFork2_thidvar1_4) (= 3 v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4} AuxVars[] AssignedVars[][56], [20#L58-1true, Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), 24#L79true, Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), 423#(<= M1 j1), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), Black: 497#(and (= M1 N2) (<= i2 j1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), 247#(<= N1 i1), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), 185#true, 57#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), Black: 246#(and (= i2 i1) (= N2 N1)), 252#true, 125#(<= M1 j1), Black: 56#(and (<= j2 i1) (= M2 N1)), 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 63#true]) [2021-03-25 10:21:34,923 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-03-25 10:21:34,923 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-25 10:21:34,924 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-25 10:21:34,924 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-03-25 10:21:35,016 INFO L129 PetriNetUnfolder]: 5073/10492 cut-off events. [2021-03-25 10:21:35,016 INFO L130 PetriNetUnfolder]: For 175171/180658 co-relation queries the response was YES. [2021-03-25 10:21:35,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68599 conditions, 10492 events. 5073/10492 cut-off events. For 175171/180658 co-relation queries the response was YES. Maximal size of possible extension queue 1148. Compared 103590 event pairs, 483 based on Foata normal form. 508/10412 useless extension candidates. Maximal degree in co-relation 66085. Up to 3446 conditions per place. [2021-03-25 10:21:35,267 INFO L142 LiptonReduction]: Number of co-enabled transitions 3970 [2021-03-25 10:21:35,320 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:35,320 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:35,320 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1457 [2021-03-25 10:21:35,320 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 419 transitions, 5432 flow [2021-03-25 10:21:35,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 28.333333333333332) internal successors, (255), 9 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:35,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:35,321 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:35,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:35,536 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:35,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:35,536 INFO L82 PathProgramCache]: Analyzing trace with hash 813900128, now seen corresponding path program 5 times [2021-03-25 10:21:35,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:35,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436514354] [2021-03-25 10:21:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:35,560 INFO L142 QuantifierPusher]: treesize reduction 16, result has 44.8 percent of original size [2021-03-25 10:21:35,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:35,575 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 10:21:35,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:35,581 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-25 10:21:35,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:35,588 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 10:21:35,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:35,589 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:21:35,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,595 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-03-25 10:21:35,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:21:35,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436514354] [2021-03-25 10:21:35,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967792080] [2021-03-25 10:21:35,596 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:35,621 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-03-25 10:21:35,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:21:35,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 10:21:35,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:35,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:35,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 10:21:35,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:35,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:35,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:35,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:35,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:35,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:35,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:35,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:21:35,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:35,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:21:35,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:35,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:35,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:35,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:21:35,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:21:35,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:35,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:35,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:35,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:35,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-25 10:21:35,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172024053] [2021-03-25 10:21:35,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 10:21:35,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:35,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 10:21:35,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 10:21:35,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 49 [2021-03-25 10:21:35,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 419 transitions, 5432 flow. Second operand has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:35,703 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:35,703 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 49 [2021-03-25 10:21:35,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:21:43,257 INFO L129 PetriNetUnfolder]: 28819/50030 cut-off events. [2021-03-25 10:21:43,258 INFO L130 PetriNetUnfolder]: For 826246/826645 co-relation queries the response was YES. [2021-03-25 10:21:43,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351957 conditions, 50030 events. 28819/50030 cut-off events. For 826246/826645 co-relation queries the response was YES. Maximal size of possible extension queue 3559. Compared 477963 event pairs, 3133 based on Foata normal form. 1651/51676 useless extension candidates. Maximal degree in co-relation 343604. Up to 13107 conditions per place. [2021-03-25 10:21:43,766 INFO L132 encePairwiseOnDemand]: 40/49 looper letters, 1481 selfloop transitions, 471 changer transitions 43/2004 dead transitions. [2021-03-25 10:21:43,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 2004 transitions, 30556 flow [2021-03-25 10:21:43,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 10:21:43,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 10:21:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 551 transitions. [2021-03-25 10:21:43,770 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5918367346938775 [2021-03-25 10:21:43,770 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 551 transitions. [2021-03-25 10:21:43,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 551 transitions. [2021-03-25 10:21:43,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:21:43,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 551 transitions. [2021-03-25 10:21:43,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 29.0) internal successors, (551), 19 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:43,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 49.0) internal successors, (980), 20 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:43,778 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 49.0) internal successors, (980), 20 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:43,778 INFO L185 Difference]: Start difference. First operand has 102 places, 419 transitions, 5432 flow. Second operand 19 states and 551 transitions. [2021-03-25 10:21:43,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 2004 transitions, 30556 flow [2021-03-25 10:21:47,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 2004 transitions, 30340 flow, removed 106 selfloop flow, removed 1 redundant places. [2021-03-25 10:21:47,639 INFO L241 Difference]: Finished difference. Result has 134 places, 899 transitions, 14332 flow [2021-03-25 10:21:47,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=5398, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14332, PETRI_PLACES=134, PETRI_TRANSITIONS=899} [2021-03-25 10:21:47,639 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 106 predicate places. [2021-03-25 10:21:47,639 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:21:47,639 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 899 transitions, 14332 flow [2021-03-25 10:21:47,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 899 transitions, 14332 flow [2021-03-25 10:21:47,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 899 transitions, 14332 flow [2021-03-25 10:21:52,270 INFO L129 PetriNetUnfolder]: 13980/31189 cut-off events. [2021-03-25 10:21:52,271 INFO L130 PetriNetUnfolder]: For 789581/807549 co-relation queries the response was YES. [2021-03-25 10:21:52,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225606 conditions, 31189 events. 13980/31189 cut-off events. For 789581/807549 co-relation queries the response was YES. Maximal size of possible extension queue 3371. Compared 379581 event pairs, 963 based on Foata normal form. 1747/31673 useless extension candidates. Maximal degree in co-relation 216858. Up to 8865 conditions per place. [2021-03-25 10:21:53,129 INFO L142 LiptonReduction]: Number of co-enabled transitions 9096 [2021-03-25 10:21:53,243 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:21:53,243 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:21:53,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5605 [2021-03-25 10:21:53,244 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 899 transitions, 14332 flow [2021-03-25 10:21:53,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:53,244 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:21:53,244 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:21:53,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-25 10:21:53,447 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:21:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:21:53,448 INFO L82 PathProgramCache]: Analyzing trace with hash 544890194, now seen corresponding path program 6 times [2021-03-25 10:21:53,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:21:53,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362798099] [2021-03-25 10:21:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:21:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:21:53,468 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:21:53,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,481 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:21:53,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,487 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:21:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:53,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362798099] [2021-03-25 10:21:53,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558540778] [2021-03-25 10:21:53,501 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:21:53,537 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-25 10:21:53,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:21:53,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 10:21:53,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:21:53,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:53,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:53,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:53,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:21:53,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:21:53,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:53,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:53,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:21:53,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:53,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:53,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:21:53,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:21:53,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-25 10:21:53,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:53,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:21:53,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:21:53,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:21:53,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:21:53,596 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-25 10:21:53,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:21:53,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:21:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:21:53,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:21:53,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-03-25 10:21:53,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307032459] [2021-03-25 10:21:53,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 10:21:53,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:21:53,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 10:21:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-25 10:21:53,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 49 [2021-03-25 10:21:53,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 899 transitions, 14332 flow. Second operand has 8 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:21:53,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:21:53,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 49 [2021-03-25 10:21:53,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:22:10,618 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L47-1-->L47-1: Formula: (and (= (+ v_j1_11 1) v_j1_10) (< v_j1_11 v_M1_6) (= v_counter_49 (+ v_counter_50 v_C_22))) InVars {counter=v_counter_50, j1=v_j1_11, M1=v_M1_6, C=v_C_22} OutVars{counter=v_counter_49, j1=v_j1_10, M1=v_M1_6, C=v_C_22} AuxVars[] AssignedVars[counter, j1][110], [11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, Black: 641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), 417#true, 33#thread4EXITtrue, Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 38#L47-1true, Black: 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), Black: 497#(and (= M1 N2) (<= i2 j1)), Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), 569#true, 185#true, 57#(<= N1 i1), Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, 320#(and (<= j2 i1) (<= N1 M2)), 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 494#true, Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), 122#true, Black: 246#(and (= i2 i1) (= N2 N1)), 252#true]) [2021-03-25 10:22:10,619 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-25 10:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:22:10,619 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:22:13,937 INFO L129 PetriNetUnfolder]: 42874/89179 cut-off events. [2021-03-25 10:22:13,937 INFO L130 PetriNetUnfolder]: For 2185637/2231828 co-relation queries the response was YES. [2021-03-25 10:22:15,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 660665 conditions, 89179 events. 42874/89179 cut-off events. For 2185637/2231828 co-relation queries the response was YES. Maximal size of possible extension queue 8381. Compared 1136858 event pairs, 2874 based on Foata normal form. 6553/92831 useless extension candidates. Maximal degree in co-relation 639288. Up to 26488 conditions per place. [2021-03-25 10:22:15,688 INFO L132 encePairwiseOnDemand]: 43/49 looper letters, 401 selfloop transitions, 334 changer transitions 12/1390 dead transitions. [2021-03-25 10:22:15,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 1390 transitions, 21944 flow [2021-03-25 10:22:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 10:22:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 10:22:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 282 transitions. [2021-03-25 10:22:15,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7193877551020408 [2021-03-25 10:22:15,690 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 282 transitions. [2021-03-25 10:22:15,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 282 transitions. [2021-03-25 10:22:15,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:22:15,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 282 transitions. [2021-03-25 10:22:15,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 35.25) internal successors, (282), 8 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:22:15,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 49.0) internal successors, (441), 9 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:22:15,692 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 49.0) internal successors, (441), 9 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:22:15,692 INFO L185 Difference]: Start difference. First operand has 134 places, 899 transitions, 14332 flow. Second operand 8 states and 282 transitions. [2021-03-25 10:22:15,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 1390 transitions, 21944 flow [2021-03-25 10:22:38,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 1390 transitions, 21078 flow, removed 431 selfloop flow, removed 1 redundant places. [2021-03-25 10:22:38,394 INFO L241 Difference]: Finished difference. Result has 144 places, 1177 transitions, 19110 flow [2021-03-25 10:22:38,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=13652, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=19110, PETRI_PLACES=144, PETRI_TRANSITIONS=1177} [2021-03-25 10:22:38,394 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 116 predicate places. [2021-03-25 10:22:38,395 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:22:38,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 1177 transitions, 19110 flow [2021-03-25 10:22:38,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 1177 transitions, 19110 flow [2021-03-25 10:22:38,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 1177 transitions, 19110 flow [2021-03-25 10:22:52,579 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([115] thread4EXIT-->L80: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][695], [6#L80true, Black: 641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 681#(<= N1 i1), 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), Black: 497#(and (= M1 N2) (<= i2 j1)), 310#true, Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), 57#(<= N1 i1), 569#true, 185#true, Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 739#(and (<= N1 i1) (= N2 N1) (<= (+ i2 1) i1)), Black: 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 679#(and (= N2 N1) (<= (+ i2 1) i1)), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 680#(and (<= i2 i1) (= N2 N1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), Black: 246#(and (= i2 i1) (= N2 N1)), 252#true, 125#(<= M1 j1)]) [2021-03-25 10:22:52,579 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is not cut-off event [2021-03-25 10:22:52,579 INFO L387 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2021-03-25 10:22:52,579 INFO L387 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2021-03-25 10:22:52,580 INFO L387 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2021-03-25 10:22:53,093 INFO L129 PetriNetUnfolder]: 38393/79785 cut-off events. [2021-03-25 10:22:53,094 INFO L130 PetriNetUnfolder]: For 2318500/2363512 co-relation queries the response was YES. [2021-03-25 10:22:53,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643300 conditions, 79785 events. 38393/79785 cut-off events. For 2318500/2363512 co-relation queries the response was YES. Maximal size of possible extension queue 7760. Compared 1013856 event pairs, 2953 based on Foata normal form. 4818/81992 useless extension candidates. Maximal degree in co-relation 624938. Up to 23227 conditions per place. [2021-03-25 10:22:55,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 13024 [2021-03-25 10:22:55,222 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:22:55,222 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:22:55,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16827 [2021-03-25 10:22:55,223 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 1177 transitions, 19110 flow [2021-03-25 10:22:55,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:22:55,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:22:55,223 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:22:55,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:22:55,428 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:22:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:22:55,428 INFO L82 PathProgramCache]: Analyzing trace with hash -377323786, now seen corresponding path program 7 times [2021-03-25 10:22:55,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:22:55,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119410184] [2021-03-25 10:22:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:22:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:22:55,462 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:22:55,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,467 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:22:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,473 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:22:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:22:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:22:55,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:22:55,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119410184] [2021-03-25 10:22:55,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475625787] [2021-03-25 10:22:55,492 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:22:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:22:55,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 10:22:55,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:22:55,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:22:55,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:22:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:22:55,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:22:55,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:22:55,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:22:55,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:22:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:22:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:22:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:22:55,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:22:55,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:22:55,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:22:55,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:22:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:22:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:22:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:22:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:22:55,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-25 10:22:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:22:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:22:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:22:55,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:22:55,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2021-03-25 10:22:55,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315171772] [2021-03-25 10:22:55,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 10:22:55,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:22:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 10:22:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-25 10:22:55,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 49 [2021-03-25 10:22:55,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 1177 transitions, 19110 flow. Second operand has 9 states, 9 states have (on average 33.22222222222222) internal successors, (299), 9 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:22:55,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:22:55,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 49 [2021-03-25 10:22:55,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:23:12,447 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L47-1-->L47-1: Formula: (and (= (+ v_j1_11 1) v_j1_10) (< v_j1_11 v_M1_6) (= v_counter_49 (+ v_counter_50 v_C_22))) InVars {counter=v_counter_50, j1=v_j1_11, M1=v_M1_6, C=v_C_22} OutVars{counter=v_counter_49, j1=v_j1_10, M1=v_M1_6, C=v_C_22} AuxVars[] AssignedVars[counter, j1][865], [11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, 20#L58-1true, Black: 641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), 417#true, Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 38#L47-1true, 681#(<= N1 i1), Black: 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), Black: 497#(and (= M1 N2) (<= i2 j1)), Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), 310#true, Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), 569#true, 57#(<= N1 i1), 185#true, Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, Black: 739#(and (<= N1 i1) (= N2 N1) (<= (+ i2 1) i1)), Black: 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 679#(and (= N2 N1) (<= (+ i2 1) i1)), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 680#(and (<= i2 i1) (= N2 N1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), 747#true, Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 494#true, Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), 122#true, Black: 246#(and (= i2 i1) (= N2 N1)), 255#(and (<= C counter) (<= counter C))]) [2021-03-25 10:23:12,447 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-25 10:23:12,447 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-25 10:23:12,447 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-25 10:23:12,447 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-25 10:23:16,262 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L47-1-->L47-1: Formula: (and (= (+ v_j1_11 1) v_j1_10) (< v_j1_11 v_M1_6) (= v_counter_49 (+ v_counter_50 v_C_22))) InVars {counter=v_counter_50, j1=v_j1_11, M1=v_M1_6, C=v_C_22} OutVars{counter=v_counter_49, j1=v_j1_10, M1=v_M1_6, C=v_C_22} AuxVars[] AssignedVars[counter, j1][865], [11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, Black: 641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), 417#true, 33#thread4EXITtrue, Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 38#L47-1true, 681#(<= N1 i1), Black: 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 51#(= counter 0), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 497#(and (= M1 N2) (<= i2 j1)), 310#true, Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), 569#true, 57#(<= N1 i1), 185#true, Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, Black: 739#(and (<= N1 i1) (= N2 N1) (<= (+ i2 1) i1)), Black: 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 679#(and (= N2 N1) (<= (+ i2 1) i1)), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 680#(and (<= i2 i1) (= N2 N1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), 747#true, Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 494#true, Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), 122#true, Black: 246#(and (= i2 i1) (= N2 N1)), 255#(and (<= C counter) (<= counter C))]) [2021-03-25 10:23:16,262 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-25 10:23:16,262 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:23:16,262 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-25 10:23:16,262 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-25 10:23:18,213 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L47-1-->L47-1: Formula: (and (= (+ v_j1_11 1) v_j1_10) (< v_j1_11 v_M1_6) (= v_counter_49 (+ v_counter_50 v_C_22))) InVars {counter=v_counter_50, j1=v_j1_11, M1=v_M1_6, C=v_C_22} OutVars{counter=v_counter_49, j1=v_j1_10, M1=v_M1_6, C=v_C_22} AuxVars[] AssignedVars[counter, j1][568], [256#(and (<= (* 2 C) counter) (<= counter (* 2 C))), 11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, Black: 641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), 33#thread4EXITtrue, 417#true, Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 38#L47-1true, 681#(<= N1 i1), Black: 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 497#(and (= M1 N2) (<= i2 j1)), Black: 51#(= counter 0), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), 569#true, 185#true, 57#(<= N1 i1), Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, 320#(and (<= j2 i1) (<= N1 M2)), Black: 739#(and (<= N1 i1) (= N2 N1) (<= (+ i2 1) i1)), Black: 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 679#(and (= N2 N1) (<= (+ i2 1) i1)), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 680#(and (<= i2 i1) (= N2 N1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), 747#true, Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 494#true, Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), 122#true, Black: 246#(and (= i2 i1) (= N2 N1))]) [2021-03-25 10:23:18,213 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-25 10:23:18,213 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-25 10:23:18,213 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:23:18,213 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:23:23,186 INFO L129 PetriNetUnfolder]: 49892/104347 cut-off events. [2021-03-25 10:23:23,186 INFO L130 PetriNetUnfolder]: For 3118781/3174926 co-relation queries the response was YES. [2021-03-25 10:23:24,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 883280 conditions, 104347 events. 49892/104347 cut-off events. For 3118781/3174926 co-relation queries the response was YES. Maximal size of possible extension queue 9433. Compared 1359666 event pairs, 5033 based on Foata normal form. 5249/105961 useless extension candidates. Maximal degree in co-relation 859107. Up to 31237 conditions per place. [2021-03-25 10:23:25,173 INFO L132 encePairwiseOnDemand]: 44/49 looper letters, 461 selfloop transitions, 365 changer transitions 0/1396 dead transitions. [2021-03-25 10:23:25,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 1396 transitions, 25685 flow [2021-03-25 10:23:25,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 10:23:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 10:23:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2021-03-25 10:23:25,174 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7210884353741497 [2021-03-25 10:23:25,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 212 transitions. [2021-03-25 10:23:25,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 212 transitions. [2021-03-25 10:23:25,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:23:25,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 212 transitions. [2021-03-25 10:23:25,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 35.333333333333336) internal successors, (212), 6 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:23:25,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:23:25,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:23:25,176 INFO L185 Difference]: Start difference. First operand has 144 places, 1177 transitions, 19110 flow. Second operand 6 states and 212 transitions. [2021-03-25 10:23:25,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 1396 transitions, 25685 flow [2021-03-25 10:24:12,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 1396 transitions, 24938 flow, removed 356 selfloop flow, removed 1 redundant places. [2021-03-25 10:24:12,022 INFO L241 Difference]: Finished difference. Result has 151 places, 1334 transitions, 23375 flow [2021-03-25 10:24:12,023 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=18603, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=23375, PETRI_PLACES=151, PETRI_TRANSITIONS=1334} [2021-03-25 10:24:12,023 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 123 predicate places. [2021-03-25 10:24:12,023 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:24:12,023 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 1334 transitions, 23375 flow [2021-03-25 10:24:12,023 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 1334 transitions, 23375 flow [2021-03-25 10:24:12,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 1334 transitions, 23375 flow [2021-03-25 10:24:27,027 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L47-1-->L47-1: Formula: (and (= (+ v_j1_11 1) v_j1_10) (< v_j1_11 v_M1_6) (= v_counter_49 (+ v_counter_50 v_C_22))) InVars {counter=v_counter_50, j1=v_j1_11, M1=v_M1_6, C=v_C_22} OutVars{counter=v_counter_49, j1=v_j1_10, M1=v_M1_6, C=v_C_22} AuxVars[] AssignedVars[counter, j1][72], [641#(and (< j2 M2) (<= M1 M2) (<= (+ j2 1) j1)), 11#thread2EXITtrue, 14#thread1EXITtrue, 18#L76true, Black: 400#(and (= M1 N2) (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 578#(and (<= j2 j1) (<= M1 M2)), Black: 643#(and (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 384#(and (= M1 N2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1) (<= (+ j1 1) N2)), Black: 386#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 645#(and (<= N1 j1) (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), Black: 388#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1)), Black: 647#(and (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 649#(and (<= N1 j1) (< j2 M2) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 404#(and (= M1 N2) (<= j2 i1) (<= N1 M2) (<= (+ j1 1) N2)), Black: 392#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 651#(and (<= N1 j1) (<= j2 j1) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (= M1 N1)), Black: 653#(and (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 394#(and (= M1 N2) (<= j2 i1) (< j2 M2) (<= N1 M2) (<= (+ j1 1) N2)), Black: 396#(and (= M1 N2) (< j2 M2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (= N2 N1) (<= (+ j2 1) i1)), Black: 655#(and (<= N1 j1) (<= j2 j1) (= N2 N1) (<= M1 M2) (<= i2 j1) (= M1 N1)), Black: 380#(and (= M1 N2) (<= (+ j1 1) i1) (<= N1 M2) (<= (+ j1 2) N1) (< (+ j2 1) M2) (= N2 N1) (<= (+ j2 1) i1)), Black: 657#(and (<= N1 j1) (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), Black: 659#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 316#(and (= M1 N2) (<= (+ j1 1) N2)), Black: 382#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 572#(and (= N2 N1) (<= i2 j1) (= M1 N1)), 33#thread4EXITtrue, Black: 573#(and (<= (+ i2 1) j1) (= N2 N1) (= M1 N1)), 417#true, Black: 637#(and (<= j2 j1) (< j2 M2) (<= M1 M2)), Black: 639#(and (< j2 M2) (<= (+ i2 1) j1) (= N2 N1) (<= M1 M2) (<= (+ j2 1) j1) (= M1 N1)), 38#L47-1true, 681#(<= N1 i1), Black: 811#(and (<= (+ i1 1) M1) (<= i1 j1) (= M1 N1)), Black: 750#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 751#(and (<= i1 j1) (= M1 N1)), Black: 560#(and (= M1 N2) (<= M1 j1) (<= i2 j1)), Black: 497#(and (= M1 N2) (<= i2 j1)), Black: 254#(and (<= counter 0) (<= 0 counter)), Black: 51#(= counter 0), Black: 498#(and (= M1 N2) (<= i2 (+ j1 1))), 310#true, Black: 562#(and (= M1 N2) (<= M1 j1) (<= i2 (+ j1 1))), Black: 558#(and (= M1 N2) (<= M1 (+ j1 1)) (<= i2 (+ j1 1))), Black: 182#(and (<= (+ j1 1) N1) (<= j1 i1) (= M1 N1)), 57#(<= N1 i1), 185#true, Black: 56#(and (<= j2 i1) (= M2 N1)), 63#true, Black: 739#(and (<= N1 i1) (= N2 N1) (<= (+ i2 1) i1)), Black: 741#(and (<= N1 i1) (<= i2 i1) (= N2 N1)), Black: 481#(and (= M1 N2) (<= N2 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1))), Black: 679#(and (= N2 N1) (<= (+ i2 1) i1)), Black: 483#(and (= M1 N2) (= N2 N1) (<= i1 j1)), Black: 680#(and (<= i2 i1) (= N2 N1)), Black: 420#(and (= M1 N2) (= N2 N1) (<= i1 (+ j1 1))), 747#true, Black: 485#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 j1)), Black: 487#(and (= M1 N2) (<= M1 j1) (= N2 N1) (<= i1 (+ j1 1))), 494#true, Black: 112#(and (<= j2 i1) (= M2 N1) (<= (+ j2 1) N1)), Black: 240#(and (<= (+ i2 1) N1) (<= i2 i1) (= N2 N1)), Black: 65#(and (= j2 i1) (= M2 N1)), Black: 187#(and (= i2 i1) (= N2 N1)), 247#(<= N1 i1), Black: 119#(and (<= (+ i1 1) M1) (= M1 N1)), 122#true, Black: 246#(and (= i2 i1) (= N2 N1)), 252#true]) [2021-03-25 10:24:27,027 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-25 10:24:27,027 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:24:27,027 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-25 10:24:27,027 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-25 10:24:32,346 INFO L129 PetriNetUnfolder]: 45980/98116 cut-off events. [2021-03-25 10:24:32,347 INFO L130 PetriNetUnfolder]: For 3040265/3093724 co-relation queries the response was YES. [2021-03-25 10:24:33,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810466 conditions, 98116 events. 45980/98116 cut-off events. For 3040265/3093724 co-relation queries the response was YES. Maximal size of possible extension queue 9062. Compared 1299549 event pairs, 3679 based on Foata normal form. 5383/100538 useless extension candidates. Maximal degree in co-relation 787055. Up to 29922 conditions per place. [2021-03-25 10:24:35,267 INFO L142 LiptonReduction]: Number of co-enabled transitions 13174 [2021-03-25 10:24:35,493 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:24:35,494 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:24:35,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23471 [2021-03-25 10:24:35,494 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 1334 transitions, 23375 flow [2021-03-25 10:24:35,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 33.22222222222222) internal successors, (299), 9 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:24:35,494 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:24:35,495 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:24:35,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-25 10:24:35,705 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:24:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:24:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1034464200, now seen corresponding path program 8 times [2021-03-25 10:24:35,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:24:35,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209731874] [2021-03-25 10:24:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:24:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:24:35,729 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-25 10:24:35,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:24:35,735 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-25 10:24:35,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:24:35,742 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-25 10:24:35,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 10:24:35,750 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:24:35,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,756 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-03-25 10:24:35,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 10:24:35,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209731874] [2021-03-25 10:24:35,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611356011] [2021-03-25 10:24:35,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:24:35,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 10:24:35,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:24:35,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-25 10:24:35,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:24:35,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:24:35,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:24:35,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:24:35,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:24:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:24:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:24:35,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 10:24:35,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:24:35,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:24:35,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:24:35,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:24:35,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:24:35,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:24:35,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:24:35,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:24:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-25 10:24:35,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:24:35,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-25 10:24:35,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008532419] [2021-03-25 10:24:35,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 10:24:35,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:24:35,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 10:24:35,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-25 10:24:35,910 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 49 [2021-03-25 10:24:35,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 1334 transitions, 23375 flow. Second operand has 9 states, 9 states have (on average 28.77777777777778) internal successors, (259), 9 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:24:35,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:24:35,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 49 [2021-03-25 10:24:35,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:25:11,290 INFO L129 PetriNetUnfolder]: 59502/113259 cut-off events. [2021-03-25 10:25:11,290 INFO L130 PetriNetUnfolder]: For 4006211/4039492 co-relation queries the response was YES. [2021-03-25 10:25:12,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048344 conditions, 113259 events. 59502/113259 cut-off events. For 4006211/4039492 co-relation queries the response was YES. Maximal size of possible extension queue 9433. Compared 1349034 event pairs, 4494 based on Foata normal form. 8596/120567 useless extension candidates. Maximal degree in co-relation 1027407. Up to 34337 conditions per place. [2021-03-25 10:25:13,442 INFO L132 encePairwiseOnDemand]: 41/49 looper letters, 1001 selfloop transitions, 1742 changer transitions 105/3225 dead transitions. [2021-03-25 10:25:13,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 3225 transitions, 57190 flow [2021-03-25 10:25:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 10:25:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 10:25:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 605 transitions. [2021-03-25 10:25:13,444 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6498388829215896 [2021-03-25 10:25:13,444 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 605 transitions. [2021-03-25 10:25:13,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 605 transitions. [2021-03-25 10:25:13,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:25:13,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 605 transitions. [2021-03-25 10:25:13,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 31.842105263157894) internal successors, (605), 19 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:25:13,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 49.0) internal successors, (980), 20 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:25:13,447 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 49.0) internal successors, (980), 20 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:25:13,447 INFO L185 Difference]: Start difference. First operand has 151 places, 1334 transitions, 23375 flow. Second operand 19 states and 605 transitions. [2021-03-25 10:25:13,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 3225 transitions, 57190 flow [2021-03-25 10:25:56,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 3225 transitions, 56624 flow, removed 283 selfloop flow, removed 0 redundant places. [2021-03-25 10:25:56,958 INFO L241 Difference]: Finished difference. Result has 181 places, 2487 transitions, 47043 flow [2021-03-25 10:25:56,959 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=22786, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=611, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=47043, PETRI_PLACES=181, PETRI_TRANSITIONS=2487} [2021-03-25 10:25:56,959 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 153 predicate places. [2021-03-25 10:25:56,959 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 10:25:56,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 2487 transitions, 47043 flow [2021-03-25 10:25:56,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 2487 transitions, 47043 flow [2021-03-25 10:25:56,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 2487 transitions, 47043 flow [2021-03-25 10:26:24,329 INFO L129 PetriNetUnfolder]: 45791/95027 cut-off events. [2021-03-25 10:26:24,329 INFO L130 PetriNetUnfolder]: For 3900687/3945225 co-relation queries the response was YES. [2021-03-25 10:26:25,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 931329 conditions, 95027 events. 45791/95027 cut-off events. For 3900687/3945225 co-relation queries the response was YES. Maximal size of possible extension queue 8871. Compared 1226188 event pairs, 4372 based on Foata normal form. 3803/96240 useless extension candidates. Maximal degree in co-relation 911170. Up to 27892 conditions per place. [2021-03-25 10:26:27,123 INFO L142 LiptonReduction]: Number of co-enabled transitions 14144 [2021-03-25 10:26:27,919 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 10:26:27,919 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 10:26:27,919 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30960 [2021-03-25 10:26:27,919 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 2487 transitions, 47043 flow [2021-03-25 10:26:27,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 28.77777777777778) internal successors, (259), 9 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:26:27,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 10:26:27,920 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 10:26:28,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-03-25 10:26:28,122 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 10:26:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 10:26:28,122 INFO L82 PathProgramCache]: Analyzing trace with hash 263792072, now seen corresponding path program 9 times [2021-03-25 10:26:28,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 10:26:28,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578000118] [2021-03-25 10:26:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 10:26:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 10:26:28,138 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 10:26:28,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,142 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-25 10:26:28,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,148 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-25 10:26:28,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:26:28,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578000118] [2021-03-25 10:26:28,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830192809] [2021-03-25 10:26:28,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 10:26:28,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 10:26:28,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 10:26:28,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-25 10:26:28,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 10:26:28,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 10:26:28,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 10:26:28,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 10:26:28,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:26:28,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:26:28,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:26:28,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 10:26:28,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 10:26:28,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 10:26:28,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:26:28,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 10:26:28,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:26:28,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:26:28,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 10:26:28,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 10:26:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 10:26:28,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 10:26:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 10:26:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 10:26:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-25 10:26:28,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 10:26:28,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 10:26:28,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632724186] [2021-03-25 10:26:28,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 10:26:28,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 10:26:28,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 10:26:28,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 10:26:28,292 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 49 [2021-03-25 10:26:28,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 2487 transitions, 47043 flow. Second operand has 10 states, 10 states have (on average 28.6) internal successors, (286), 10 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:26:28,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 10:26:28,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 49 [2021-03-25 10:26:28,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 10:27:58,478 INFO L129 PetriNetUnfolder]: 88535/171684 cut-off events. [2021-03-25 10:27:58,478 INFO L130 PetriNetUnfolder]: For 7104486/7142739 co-relation queries the response was YES. [2021-03-25 10:28:01,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1815941 conditions, 171684 events. 88535/171684 cut-off events. For 7104486/7142739 co-relation queries the response was YES. Maximal size of possible extension queue 14414. Compared 2182175 event pairs, 8008 based on Foata normal form. 12071/180228 useless extension candidates. Maximal degree in co-relation 1785647. Up to 54079 conditions per place. [2021-03-25 10:28:02,271 INFO L132 encePairwiseOnDemand]: 41/49 looper letters, 2849 selfloop transitions, 3108 changer transitions 280/7189 dead transitions. [2021-03-25 10:28:02,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 7189 transitions, 159040 flow [2021-03-25 10:28:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-25 10:28:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-03-25 10:28:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1129 transitions. [2021-03-25 10:28:02,275 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6583090379008746 [2021-03-25 10:28:02,275 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 1129 transitions. [2021-03-25 10:28:02,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 1129 transitions. [2021-03-25 10:28:02,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 10:28:02,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 1129 transitions. [2021-03-25 10:28:02,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 32.25714285714286) internal successors, (1129), 35 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:28:02,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 49.0) internal successors, (1764), 36 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:28:02,281 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 49.0) internal successors, (1764), 36 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 10:28:02,281 INFO L185 Difference]: Start difference. First operand has 181 places, 2487 transitions, 47043 flow. Second operand 35 states and 1129 transitions. [2021-03-25 10:28:02,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 7189 transitions, 159040 flow Received shutdown request... [2021-03-25 10:34:50,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-25 10:34:50,504 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 10:34:50,507 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 10:34:50,507 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 10:34:50 BasicIcfg [2021-03-25 10:34:50,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 10:34:50,508 INFO L168 Benchmark]: Toolchain (without parser) took 807205.72 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.7 GB). Free memory was 236.7 MB in the beginning and 8.6 GB in the end (delta: -8.4 GB). Peak memory consumption was 12.5 GB. Max. memory is 16.0 GB. [2021-03-25 10:34:50,508 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 93.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 10:34:50,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.04 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 10:34:50,508 INFO L168 Benchmark]: Boogie Preprocessor took 14.60 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 10:34:50,508 INFO L168 Benchmark]: RCFGBuilder took 277.21 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 236.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.0 GB. [2021-03-25 10:34:50,509 INFO L168 Benchmark]: TraceAbstraction took 806883.78 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.7 GB). Free memory was 235.8 MB in the beginning and 8.6 GB in the end (delta: -8.4 GB). Peak memory consumption was 12.5 GB. Max. memory is 16.0 GB. [2021-03-25 10:34:50,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.57 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 93.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.04 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.60 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 277.21 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 236.2 MB in the end (delta: -2.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 806883.78 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.7 GB). Free memory was 235.8 MB in the beginning and 8.6 GB in the end (delta: -8.4 GB). Peak memory consumption was 12.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 258.9ms, 39 PlacesBefore, 28 PlacesAfterwards, 30 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 120, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 96, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 96, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 120, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 96, unknown conditional: 0, unknown unconditional: 96] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.8ms, 23 PlacesBefore, 22 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6ms, 27 PlacesBefore, 27 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3ms, 32 PlacesBefore, 32 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0ms, 36 PlacesBefore, 36 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3ms, 39 PlacesBefore, 38 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 41 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.4ms, 44 PlacesBefore, 44 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.0ms, 49 PlacesBefore, 49 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.6ms, 52 PlacesBefore, 52 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 318.5ms, 81 PlacesBefore, 80 PlacesAfterwards, 219 TransitionsBefore, 219 TransitionsAfterwards, 1446 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 584.3ms, 91 PlacesBefore, 91 PlacesAfterwards, 306 TransitionsBefore, 306 TransitionsAfterwards, 2006 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1456.9ms, 102 PlacesBefore, 102 PlacesAfterwards, 419 TransitionsBefore, 419 TransitionsAfterwards, 3970 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5603.8ms, 134 PlacesBefore, 134 PlacesAfterwards, 899 TransitionsBefore, 899 TransitionsAfterwards, 9096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16827.4ms, 144 PlacesBefore, 144 PlacesAfterwards, 1177 TransitionsBefore, 1177 TransitionsAfterwards, 13024 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23470.4ms, 151 PlacesBefore, 151 PlacesAfterwards, 1334 TransitionsBefore, 1334 TransitionsAfterwards, 13174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30959.0ms, 181 PlacesBefore, 181 PlacesAfterwards, 2487 TransitionsBefore, 2487 TransitionsAfterwards, 14144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 82). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 806759.0ms, OverallIterations: 17, TraceHistogramMax: 2, EmptinessCheckTime: 0.0ms, AutomataDifference: 721836.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 310.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 336 SDslu, 108 SDs, 0 SdLazy, 1175 SolverSat, 262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 764.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 1510.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47043occurred in iteration=16, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 91.6ms SsaConstructionTime, 298.6ms SatisfiabilityAnalysisTime, 1787.1ms InterpolantComputationTime, 514 NumberOfCodeBlocks, 513 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 2123 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1033 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 29 InterpolantComputations, 5 PerfectInterpolantSequences, 73/122 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown