/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 17:42:56,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 17:42:56,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 17:42:56,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 17:42:56,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 17:42:56,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 17:42:56,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 17:42:56,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 17:42:56,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 17:42:56,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 17:42:56,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 17:42:56,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 17:42:56,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 17:42:56,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 17:42:56,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 17:42:56,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 17:42:56,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 17:42:56,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 17:42:56,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 17:42:56,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 17:42:56,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 17:42:56,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 17:42:56,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 17:42:56,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 17:42:56,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 17:42:56,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 17:42:56,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 17:42:56,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 17:42:56,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 17:42:56,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 17:42:56,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 17:42:56,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 17:42:56,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 17:42:56,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 17:42:56,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 17:42:56,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 17:42:56,848 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-VariableLbe.epf [2021-03-24 17:42:56,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 17:42:56,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 17:42:56,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 17:42:56,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 17:42:56,887 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 17:42:56,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 17:42:56,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 17:42:56,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 17:42:56,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 17:42:56,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 17:42:56,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 17:42:56,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 17:42:56,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 17:42:56,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 17:42:56,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 17:42:56,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 17:42:56,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 17:42:56,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 17:42:57,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 17:42:57,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 17:42:57,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 17:42:57,198 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 17:42:57,199 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 17:42:57,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl [2021-03-24 17:42:57,200 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/hard1.wvr.bpl' [2021-03-24 17:42:57,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 17:42:57,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 17:42:57,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 17:42:57,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 17:42:57,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 17:42:57,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 17:42:57,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 17:42:57,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 17:42:57,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 17:42:57,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/1) ... [2021-03-24 17:42:57,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 17:42:57,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 17:42:57,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 17:42:57,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 17:42:57,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (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 [2021-03-24 17:42:57,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-24 17:42:57,331 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-24 17:42:57,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-24 17:42:57,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-24 17:42:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-24 17:42:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-24 17:42:57,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-24 17:42:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 17:42:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 17:42:57,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-24 17:42:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-24 17:42:57,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-24 17:42:57,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-24 17:42:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-24 17:42:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-24 17:42:57,333 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 17:42:57,510 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 17:42:57,510 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 17:42:57,512 INFO L202 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 05:42:57 BoogieIcfgContainer [2021-03-24 17:42:57,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 17:42:57,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 17:42:57,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 17:42:57,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 17:42:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 05:42:57" (1/2) ... [2021-03-24 17:42:57,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13539753 and model type hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 05:42:57, skipping insertion in model container [2021-03-24 17:42:57,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 05:42:57" (2/2) ... [2021-03-24 17:42:57,517 INFO L111 eAbstractionObserver]: Analyzing ICFG hard1.wvr.bpl [2021-03-24 17:42:57,522 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 17:42:57,525 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 17:42:57,525 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 17:42:57,558 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 17:42:57,574 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 17:42:57,591 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 17:42:57,591 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 17:42:57,591 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 17:42:57,591 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 17:42:57,591 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 17:42:57,591 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 17:42:57,591 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 17:42:57,591 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 17:42:57,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 98 flow [2021-03-24 17:42:57,622 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-24 17:42:57,622 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 17:42:57,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 40 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-24 17:42:57,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 33 transitions, 98 flow [2021-03-24 17:42:57,629 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 27 transitions, 78 flow [2021-03-24 17:42:57,630 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 17:42:57,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 78 flow [2021-03-24 17:42:57,641 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 78 flow [2021-03-24 17:42:57,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 27 transitions, 78 flow [2021-03-24 17:42:57,653 INFO L129 PetriNetUnfolder]: 4/27 cut-off events. [2021-03-24 17:42:57,653 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 17:42:57,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 27 events. 4/27 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-24 17:42:57,657 INFO L142 LiptonReduction]: Number of co-enabled transitions 288 [2021-03-24 17:42:57,730 INFO L154 LiptonReduction]: Checked pairs total: 336 [2021-03-24 17:42:57,730 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-24 17:42:57,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-24 17:42:57,756 INFO L129 PetriNetUnfolder]: 4/21 cut-off events. [2021-03-24 17:42:57,756 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 17:42:57,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:42:57,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:42:57,757 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:42:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:42:57,766 INFO L82 PathProgramCache]: Analyzing trace with hash 694098477, now seen corresponding path program 1 times [2021-03-24 17:42:57,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:42:57,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950437757] [2021-03-24 17:42:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:42:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:57,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:57,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:57,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950437757] [2021-03-24 17:42:57,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 17:42:57,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-24 17:42:57,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339370570] [2021-03-24 17:42:57,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 17:42:57,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:42:57,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 17:42:57,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 17:42:57,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 38 [2021-03-24 17:42:57,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2021-03-24 17:42:57,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:42:57,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 38 [2021-03-24 17:42:57,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:42:58,021 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([92] L52-->L52-1: Formula: (let ((.cse0 (< 1 v_n2_13))) (and (= v_p2_7 (ite .cse0 (+ v_p2_8 (* v_m_5 2)) v_p2_8)) (= v_n2_12 (ite .cse0 (+ v_n2_13 (- 2)) v_n2_13)))) InVars {m=v_m_5, n2=v_n2_13, p2=v_p2_8} OutVars{m=v_m_5, n2=v_n2_12, p2=v_p2_7} AuxVars[] AssignedVars[n2, p2][21], [34#L66true, 22#L52-1true, 6#L19-1true, thread3Thread1of1ForFork2InUse, 25#L41-1true, thread1Thread1of1ForFork0InUse, thread4Thread1of1ForFork3InUse, 28#L30-1true, thread2Thread1of1ForFork1InUse, 46#true]) [2021-03-24 17:42:58,021 INFO L384 tUnfolder$Statistics]: this new event has 9 ancestors and is cut-off event [2021-03-24 17:42:58,021 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-24 17:42:58,021 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-24 17:42:58,021 INFO L387 tUnfolder$Statistics]: existing Event has 9 ancestors and is cut-off event [2021-03-24 17:42:58,033 INFO L129 PetriNetUnfolder]: 19/53 cut-off events. [2021-03-24 17:42:58,033 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-24 17:42:58,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 53 events. 19/53 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 130 event pairs, 0 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 72. Up to 22 conditions per place. [2021-03-24 17:42:58,039 INFO L132 encePairwiseOnDemand]: 32/38 looper letters, 5 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2021-03-24 17:42:58,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 96 flow [2021-03-24 17:42:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 17:42:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 17:42:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2021-03-24 17:42:58,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2021-03-24 17:42:58,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 101 transitions. [2021-03-24 17:42:58,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 101 transitions. [2021-03-24 17:42:58,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:42:58,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 101 transitions. [2021-03-24 17:42:58,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-03-24 17:42:58,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-03-24 17:42:58,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2021-03-24 17:42:58,076 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 68 flow. Second operand 3 states and 101 transitions. [2021-03-24 17:42:58,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 96 flow [2021-03-24 17:42:58,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 80 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-24 17:42:58,084 INFO L241 Difference]: Finished difference. Result has 26 places, 26 transitions, 85 flow [2021-03-24 17:42:58,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=26, PETRI_TRANSITIONS=26} [2021-03-24 17:42:58,087 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2021-03-24 17:42:58,087 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 26 transitions, 85 flow [2021-03-24 17:42:58,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2021-03-24 17:42:58,087 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:42:58,087 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:42:58,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 17:42:58,088 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:42:58,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:42:58,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1815715007, now seen corresponding path program 1 times [2021-03-24 17:42:58,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:42:58,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493934926] [2021-03-24 17:42:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:42:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:58,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:58,160 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:42:58,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:58,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:58,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493934926] [2021-03-24 17:42:58,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023629467] [2021-03-24 17:42:58,177 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 [2021-03-24 17:42:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:58,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-24 17:42:58,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:42:58,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:58,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:58,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:58,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 17:42:58,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,363 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:42:58,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:58,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:42:58,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-24 17:42:58,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184846628] [2021-03-24 17:42:58,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:42:58,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:42:58,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:42:58,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:42:58,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:42:58,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 26 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2021-03-24 17:42:58,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:42:58,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:42:58,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:42:58,627 INFO L129 PetriNetUnfolder]: 906/1279 cut-off events. [2021-03-24 17:42:58,627 INFO L130 PetriNetUnfolder]: For 191/191 co-relation queries the response was YES. [2021-03-24 17:42:58,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3034 conditions, 1279 events. 906/1279 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 5609 event pairs, 27 based on Foata normal form. 0/901 useless extension candidates. Maximal degree in co-relation 2959. Up to 474 conditions per place. [2021-03-24 17:42:58,640 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 36 selfloop transitions, 17 changer transitions 0/62 dead transitions. [2021-03-24 17:42:58,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 62 transitions, 279 flow [2021-03-24 17:42:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:42:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:42:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2021-03-24 17:42:58,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7763157894736842 [2021-03-24 17:42:58,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 177 transitions. [2021-03-24 17:42:58,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 177 transitions. [2021-03-24 17:42:58,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:42:58,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 177 transitions. [2021-03-24 17:42:58,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2021-03-24 17:42:58,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:42:58,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:42:58,658 INFO L185 Difference]: Start difference. First operand has 26 places, 26 transitions, 85 flow. Second operand 6 states and 177 transitions. [2021-03-24 17:42:58,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 62 transitions, 279 flow [2021-03-24 17:42:58,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 62 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 17:42:58,661 INFO L241 Difference]: Finished difference. Result has 35 places, 38 transitions, 208 flow [2021-03-24 17:42:58,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=35, PETRI_TRANSITIONS=38} [2021-03-24 17:42:58,662 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-24 17:42:58,662 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 38 transitions, 208 flow [2021-03-24 17:42:58,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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) [2021-03-24 17:42:58,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:42:58,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:42:58,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-03-24 17:42:58,876 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:42:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:42:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash -892033331, now seen corresponding path program 2 times [2021-03-24 17:42:58,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:42:58,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493205147] [2021-03-24 17:42:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:42:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:58,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:58,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:58,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:58,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:58,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493205147] [2021-03-24 17:42:58,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 17:42:58,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 17:42:58,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196119111] [2021-03-24 17:42:58,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 17:42:58,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:42:58,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 17:42:58,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 17:42:58,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:42:58,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 38 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2021-03-24 17:42:58,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:42:58,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:42:58,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:42:59,051 INFO L129 PetriNetUnfolder]: 759/1093 cut-off events. [2021-03-24 17:42:59,051 INFO L130 PetriNetUnfolder]: For 1272/1466 co-relation queries the response was YES. [2021-03-24 17:42:59,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3792 conditions, 1093 events. 759/1093 cut-off events. For 1272/1466 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 4743 event pairs, 29 based on Foata normal form. 50/1121 useless extension candidates. Maximal degree in co-relation 3689. Up to 625 conditions per place. [2021-03-24 17:42:59,060 INFO L132 encePairwiseOnDemand]: 27/38 looper letters, 43 selfloop transitions, 7 changer transitions 6/65 dead transitions. [2021-03-24 17:42:59,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 65 transitions, 472 flow [2021-03-24 17:42:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 17:42:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 17:42:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2021-03-24 17:42:59,062 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7473684210526316 [2021-03-24 17:42:59,062 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 142 transitions. [2021-03-24 17:42:59,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 142 transitions. [2021-03-24 17:42:59,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:42:59,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 142 transitions. [2021-03-24 17:42:59,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2021-03-24 17:42:59,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:42:59,064 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:42:59,064 INFO L185 Difference]: Start difference. First operand has 35 places, 38 transitions, 208 flow. Second operand 5 states and 142 transitions. [2021-03-24 17:42:59,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 65 transitions, 472 flow [2021-03-24 17:42:59,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 17:42:59,071 INFO L241 Difference]: Finished difference. Result has 41 places, 38 transitions, 236 flow [2021-03-24 17:42:59,072 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2021-03-24 17:42:59,072 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-24 17:42:59,072 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 236 flow [2021-03-24 17:42:59,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2021-03-24 17:42:59,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:42:59,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:42:59,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 17:42:59,073 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:42:59,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:42:59,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2054216503, now seen corresponding path program 1 times [2021-03-24 17:42:59,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:42:59,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695515989] [2021-03-24 17:42:59,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:42:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:59,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,091 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:42:59,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:59,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695515989] [2021-03-24 17:42:59,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557825449] [2021-03-24 17:42:59,102 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 [2021-03-24 17:42:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:59,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-24 17:42:59,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:42:59,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:59,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 17:42:59,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,167 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:42:59,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:42:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:59,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:42:59,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-24 17:42:59,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593854741] [2021-03-24 17:42:59,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:42:59,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:42:59,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:42:59,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:42:59,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:42:59,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 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) [2021-03-24 17:42:59,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:42:59,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:42:59,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:42:59,365 INFO L129 PetriNetUnfolder]: 1285/1739 cut-off events. [2021-03-24 17:42:59,365 INFO L130 PetriNetUnfolder]: For 3230/3321 co-relation queries the response was YES. [2021-03-24 17:42:59,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6593 conditions, 1739 events. 1285/1739 cut-off events. For 3230/3321 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 7004 event pairs, 97 based on Foata normal form. 83/1808 useless extension candidates. Maximal degree in co-relation 6542. Up to 864 conditions per place. [2021-03-24 17:42:59,381 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 56 selfloop transitions, 17 changer transitions 0/82 dead transitions. [2021-03-24 17:42:59,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 82 transitions, 632 flow [2021-03-24 17:42:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:42:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:42:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2021-03-24 17:42:59,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7587719298245614 [2021-03-24 17:42:59,382 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 173 transitions. [2021-03-24 17:42:59,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 173 transitions. [2021-03-24 17:42:59,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:42:59,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 173 transitions. [2021-03-24 17:42:59,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 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) [2021-03-24 17:42:59,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:42:59,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:42:59,384 INFO L185 Difference]: Start difference. First operand has 41 places, 38 transitions, 236 flow. Second operand 6 states and 173 transitions. [2021-03-24 17:42:59,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 82 transitions, 632 flow [2021-03-24 17:42:59,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 82 transitions, 617 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 17:42:59,391 INFO L241 Difference]: Finished difference. Result has 46 places, 46 transitions, 334 flow [2021-03-24 17:42:59,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2021-03-24 17:42:59,391 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2021-03-24 17:42:59,391 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 334 flow [2021-03-24 17:42:59,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 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) [2021-03-24 17:42:59,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:42:59,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:42:59,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:42:59,614 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:42:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:42:59,614 INFO L82 PathProgramCache]: Analyzing trace with hash 708255849, now seen corresponding path program 1 times [2021-03-24 17:42:59,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:42:59,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335313773] [2021-03-24 17:42:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:42:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:59,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,684 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:42:59,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,694 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:42:59,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:42:59,703 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:42:59,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:59,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335313773] [2021-03-24 17:42:59,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237005241] [2021-03-24 17:42:59,716 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 [2021-03-24 17:42:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:42:59,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:42:59,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:42:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:42:59,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:42:59,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:42:59,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:42:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:42:59,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:59,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:42:59,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:42:59,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,800 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:59,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:42:59,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:42:59,807 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 17:42:59,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:42:59,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:59,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:42:59,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:42:59,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:42:59,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:42:59,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:42:59,827 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:42:59,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:42:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:42:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:42:59,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:42:59,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:42:59,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420641852] [2021-03-24 17:42:59,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:42:59,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:42:59,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:42:59,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:42:59,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:42:59,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:42:59,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:42:59,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:42:59,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:00,127 INFO L129 PetriNetUnfolder]: 2222/3077 cut-off events. [2021-03-24 17:43:00,127 INFO L130 PetriNetUnfolder]: For 9649/9802 co-relation queries the response was YES. [2021-03-24 17:43:00,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14337 conditions, 3077 events. 2222/3077 cut-off events. For 9649/9802 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 14059 event pairs, 275 based on Foata normal form. 13/3074 useless extension candidates. Maximal degree in co-relation 14239. Up to 2174 conditions per place. [2021-03-24 17:43:00,162 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 71 selfloop transitions, 57 changer transitions 0/136 dead transitions. [2021-03-24 17:43:00,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 136 transitions, 1290 flow [2021-03-24 17:43:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2021-03-24 17:43:00,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7324561403508771 [2021-03-24 17:43:00,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 167 transitions. [2021-03-24 17:43:00,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 167 transitions. [2021-03-24 17:43:00,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:00,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 167 transitions. [2021-03-24 17:43:00,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 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) [2021-03-24 17:43:00,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:00,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:00,165 INFO L185 Difference]: Start difference. First operand has 46 places, 46 transitions, 334 flow. Second operand 6 states and 167 transitions. [2021-03-24 17:43:00,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 136 transitions, 1290 flow [2021-03-24 17:43:00,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 136 transitions, 1249 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-24 17:43:00,200 INFO L241 Difference]: Finished difference. Result has 51 places, 96 transitions, 911 flow [2021-03-24 17:43:00,201 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=911, PETRI_PLACES=51, PETRI_TRANSITIONS=96} [2021-03-24 17:43:00,201 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2021-03-24 17:43:00,201 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 96 transitions, 911 flow [2021-03-24 17:43:00,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:00,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:00,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:00,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:00,416 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:00,416 INFO L82 PathProgramCache]: Analyzing trace with hash -697990693, now seen corresponding path program 2 times [2021-03-24 17:43:00,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:00,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137359689] [2021-03-24 17:43:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:00,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,457 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:00,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,466 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:43:00,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:00,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137359689] [2021-03-24 17:43:00,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86868720] [2021-03-24 17:43:00,481 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 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 [2021-03-24 17:43:00,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:43:00,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:00,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:00,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:00,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:00,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:00,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:00,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:00,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:00,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:00,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:00,539 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:43:00,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:00,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:00,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:00,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:00,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:00,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:00,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:00,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:00,556 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:00,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:00,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:00,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:00,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:00,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713912373] [2021-03-24 17:43:00,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:00,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:00,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:00,570 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:00,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 96 transitions, 911 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:00,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:00,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:00,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:01,160 INFO L129 PetriNetUnfolder]: 3848/5440 cut-off events. [2021-03-24 17:43:01,161 INFO L130 PetriNetUnfolder]: For 23810/23922 co-relation queries the response was YES. [2021-03-24 17:43:01,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29358 conditions, 5440 events. 3848/5440 cut-off events. For 23810/23922 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 28537 event pairs, 242 based on Foata normal form. 13/5443 useless extension candidates. Maximal degree in co-relation 29125. Up to 3720 conditions per place. [2021-03-24 17:43:01,232 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 127 selfloop transitions, 102 changer transitions 0/237 dead transitions. [2021-03-24 17:43:01,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 237 transitions, 2682 flow [2021-03-24 17:43:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2021-03-24 17:43:01,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7456140350877193 [2021-03-24 17:43:01,234 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 170 transitions. [2021-03-24 17:43:01,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 170 transitions. [2021-03-24 17:43:01,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:01,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 170 transitions. [2021-03-24 17:43:01,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2021-03-24 17:43:01,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:01,236 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:01,236 INFO L185 Difference]: Start difference. First operand has 51 places, 96 transitions, 911 flow. Second operand 6 states and 170 transitions. [2021-03-24 17:43:01,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 237 transitions, 2682 flow [2021-03-24 17:43:01,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 237 transitions, 2636 flow, removed 23 selfloop flow, removed 0 redundant places. [2021-03-24 17:43:01,282 INFO L241 Difference]: Finished difference. Result has 59 places, 185 transitions, 2177 flow [2021-03-24 17:43:01,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2177, PETRI_PLACES=59, PETRI_TRANSITIONS=185} [2021-03-24 17:43:01,282 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-24 17:43:01,282 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 185 transitions, 2177 flow [2021-03-24 17:43:01,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:01,283 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:01,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:01,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:01,504 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:01,505 INFO L82 PathProgramCache]: Analyzing trace with hash -528492537, now seen corresponding path program 1 times [2021-03-24 17:43:01,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:01,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480239476] [2021-03-24 17:43:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:01,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:01,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:43:01,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:01,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:01,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480239476] [2021-03-24 17:43:01,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062063758] [2021-03-24 17:43:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-24 17:43:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:01,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-24 17:43:01,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:01,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,587 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-24 17:43:01,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:01,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:01,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:01,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 17:43:01,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:01,604 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-24 17:43:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:01,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-24 17:43:01,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-03-24 17:43:01,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371795624] [2021-03-24 17:43:01,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 17:43:01,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:01,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 17:43:01,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:01,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:01,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 185 transitions, 2177 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2021-03-24 17:43:01,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:01,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:01,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:02,371 INFO L129 PetriNetUnfolder]: 4002/5669 cut-off events. [2021-03-24 17:43:02,371 INFO L130 PetriNetUnfolder]: For 40129/40390 co-relation queries the response was YES. [2021-03-24 17:43:02,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35875 conditions, 5669 events. 4002/5669 cut-off events. For 40129/40390 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 30015 event pairs, 318 based on Foata normal form. 209/5865 useless extension candidates. Maximal degree in co-relation 35677. Up to 2405 conditions per place. [2021-03-24 17:43:02,430 INFO L132 encePairwiseOnDemand]: 29/38 looper letters, 330 selfloop transitions, 83 changer transitions 0/422 dead transitions. [2021-03-24 17:43:02,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 422 transitions, 5812 flow [2021-03-24 17:43:02,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 17:43:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 17:43:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 147 transitions. [2021-03-24 17:43:02,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7736842105263158 [2021-03-24 17:43:02,432 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 147 transitions. [2021-03-24 17:43:02,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 147 transitions. [2021-03-24 17:43:02,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:02,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 147 transitions. [2021-03-24 17:43:02,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-03-24 17:43:02,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:43:02,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:43:02,434 INFO L185 Difference]: Start difference. First operand has 59 places, 185 transitions, 2177 flow. Second operand 5 states and 147 transitions. [2021-03-24 17:43:02,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 422 transitions, 5812 flow [2021-03-24 17:43:02,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 422 transitions, 5702 flow, removed 55 selfloop flow, removed 0 redundant places. [2021-03-24 17:43:02,490 INFO L241 Difference]: Finished difference. Result has 67 places, 263 transitions, 3577 flow [2021-03-24 17:43:02,490 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2131, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3577, PETRI_PLACES=67, PETRI_TRANSITIONS=263} [2021-03-24 17:43:02,491 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2021-03-24 17:43:02,491 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 263 transitions, 3577 flow [2021-03-24 17:43:02,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2021-03-24 17:43:02,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:02,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:02,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-24 17:43:02,704 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1529851655, now seen corresponding path program 2 times [2021-03-24 17:43:02,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:02,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157248696] [2021-03-24 17:43:02,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:02,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:02,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:02,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157248696] [2021-03-24 17:43:02,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158151561] [2021-03-24 17:43:02,730 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 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 [2021-03-24 17:43:02,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:43:02,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:02,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:43:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:02,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:02,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:02,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:02,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:02,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:43:02,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:02,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:43:02,803 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:43:02,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:02,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:02,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:02,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:02,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:02,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,825 INFO L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-03-24 17:43:02,826 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-03-24 17:43:02,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:02,829 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:43:02,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:02,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:02,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:02,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-24 17:43:02,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545636728] [2021-03-24 17:43:02,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:43:02,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:02,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:43:02,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:43:02,847 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:02,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 263 transitions, 3577 flow. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:02,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:02,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:02,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:04,005 INFO L129 PetriNetUnfolder]: 5383/7650 cut-off events. [2021-03-24 17:43:04,006 INFO L130 PetriNetUnfolder]: For 67179/67570 co-relation queries the response was YES. [2021-03-24 17:43:04,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53347 conditions, 7650 events. 5383/7650 cut-off events. For 67179/67570 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 42744 event pairs, 280 based on Foata normal form. 202/7843 useless extension candidates. Maximal degree in co-relation 53068. Up to 2959 conditions per place. [2021-03-24 17:43:04,107 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 206 selfloop transitions, 227 changer transitions 0/442 dead transitions. [2021-03-24 17:43:04,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 442 transitions, 6566 flow [2021-03-24 17:43:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 17:43:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 17:43:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 265 transitions. [2021-03-24 17:43:04,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7748538011695907 [2021-03-24 17:43:04,109 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 265 transitions. [2021-03-24 17:43:04,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 265 transitions. [2021-03-24 17:43:04,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:04,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 265 transitions. [2021-03-24 17:43:04,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 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) [2021-03-24 17:43:04,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:04,111 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:04,111 INFO L185 Difference]: Start difference. First operand has 67 places, 263 transitions, 3577 flow. Second operand 9 states and 265 transitions. [2021-03-24 17:43:04,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 442 transitions, 6566 flow [2021-03-24 17:43:04,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 442 transitions, 6548 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-03-24 17:43:04,198 INFO L241 Difference]: Finished difference. Result has 79 places, 361 transitions, 5744 flow [2021-03-24 17:43:04,199 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=3569, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5744, PETRI_PLACES=79, PETRI_TRANSITIONS=361} [2021-03-24 17:43:04,199 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 48 predicate places. [2021-03-24 17:43:04,199 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 361 transitions, 5744 flow [2021-03-24 17:43:04,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:04,199 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:04,199 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:04,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:04,422 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:04,422 INFO L82 PathProgramCache]: Analyzing trace with hash 134081105, now seen corresponding path program 3 times [2021-03-24 17:43:04,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:04,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232906467] [2021-03-24 17:43:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:04,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:04,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:43:04,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:04,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232906467] [2021-03-24 17:43:04,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365188146] [2021-03-24 17:43:04,452 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 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 [2021-03-24 17:43:04,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-24 17:43:04,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:04,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:43:04,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:04,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:04,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:04,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:04,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:04,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:04,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:04,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:43:04,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:04,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:04,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:43:04,525 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:43:04,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:04,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:04,536 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-24 17:43:04,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:04,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:04,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:04,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:04,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:04,611 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-24 17:43:04,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:04,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:04,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:04,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-24 17:43:04,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010574124] [2021-03-24 17:43:04,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:43:04,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:04,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:43:04,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:43:04,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:04,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 361 transitions, 5744 flow. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:04,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:04,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:04,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:06,079 INFO L129 PetriNetUnfolder]: 7179/10361 cut-off events. [2021-03-24 17:43:06,079 INFO L130 PetriNetUnfolder]: For 131021/131241 co-relation queries the response was YES. [2021-03-24 17:43:06,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82034 conditions, 10361 events. 7179/10361 cut-off events. For 131021/131241 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 60584 event pairs, 220 based on Foata normal form. 295/10649 useless extension candidates. Maximal degree in co-relation 81578. Up to 3770 conditions per place. [2021-03-24 17:43:06,311 INFO L132 encePairwiseOnDemand]: 25/38 looper letters, 379 selfloop transitions, 386 changer transitions 0/774 dead transitions. [2021-03-24 17:43:06,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 774 transitions, 13248 flow [2021-03-24 17:43:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 17:43:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 17:43:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 385 transitions. [2021-03-24 17:43:06,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7793522267206477 [2021-03-24 17:43:06,314 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 385 transitions. [2021-03-24 17:43:06,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 385 transitions. [2021-03-24 17:43:06,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:06,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 385 transitions. [2021-03-24 17:43:06,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.615384615384617) internal successors, (385), 13 states have internal predecessors, (385), 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) [2021-03-24 17:43:06,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 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) [2021-03-24 17:43:06,317 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 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) [2021-03-24 17:43:06,317 INFO L185 Difference]: Start difference. First operand has 79 places, 361 transitions, 5744 flow. Second operand 13 states and 385 transitions. [2021-03-24 17:43:06,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 774 transitions, 13248 flow [2021-03-24 17:43:06,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 774 transitions, 12906 flow, removed 102 selfloop flow, removed 3 redundant places. [2021-03-24 17:43:06,546 INFO L241 Difference]: Finished difference. Result has 97 places, 602 transitions, 11030 flow [2021-03-24 17:43:06,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=5558, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11030, PETRI_PLACES=97, PETRI_TRANSITIONS=602} [2021-03-24 17:43:06,546 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 66 predicate places. [2021-03-24 17:43:06,547 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 602 transitions, 11030 flow [2021-03-24 17:43:06,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:06,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:06,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:06,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:06,768 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:06,768 INFO L82 PathProgramCache]: Analyzing trace with hash 197103947, now seen corresponding path program 3 times [2021-03-24 17:43:06,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:06,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963967321] [2021-03-24 17:43:06,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:06,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,800 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:06,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,805 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:43:06,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,817 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:43:06,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:06,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963967321] [2021-03-24 17:43:06,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778727909] [2021-03-24 17:43:06,824 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 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 [2021-03-24 17:43:06,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-24 17:43:06,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:06,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:06,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:06,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:06,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:06,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:06,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:06,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:06,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:06,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:06,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:06,878 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 17:43:06,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:06,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:06,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:06,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:06,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:06,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:06,887 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:06,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:06,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:06,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:06,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:06,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493319889] [2021-03-24 17:43:06,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:06,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:06,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:06,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:06,900 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:06,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 602 transitions, 11030 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:06,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:06,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:06,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:08,773 INFO L129 PetriNetUnfolder]: 8097/11690 cut-off events. [2021-03-24 17:43:08,773 INFO L130 PetriNetUnfolder]: For 208912/209553 co-relation queries the response was YES. [2021-03-24 17:43:08,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108174 conditions, 11690 events. 8097/11690 cut-off events. For 208912/209553 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 70047 event pairs, 856 based on Foata normal form. 65/11748 useless extension candidates. Maximal degree in co-relation 107667. Up to 10396 conditions per place. [2021-03-24 17:43:08,914 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 656 selfloop transitions, 122 changer transitions 0/786 dead transitions. [2021-03-24 17:43:08,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 786 transitions, 15747 flow [2021-03-24 17:43:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2021-03-24 17:43:08,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2021-03-24 17:43:08,916 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 166 transitions. [2021-03-24 17:43:08,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 166 transitions. [2021-03-24 17:43:08,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:08,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 166 transitions. [2021-03-24 17:43:08,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 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) [2021-03-24 17:43:08,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:08,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:08,917 INFO L185 Difference]: Start difference. First operand has 97 places, 602 transitions, 11030 flow. Second operand 6 states and 166 transitions. [2021-03-24 17:43:08,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 786 transitions, 15747 flow [2021-03-24 17:43:09,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 786 transitions, 15422 flow, removed 159 selfloop flow, removed 1 redundant places. [2021-03-24 17:43:09,285 INFO L241 Difference]: Finished difference. Result has 104 places, 700 transitions, 13119 flow [2021-03-24 17:43:09,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=10767, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13119, PETRI_PLACES=104, PETRI_TRANSITIONS=700} [2021-03-24 17:43:09,285 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 73 predicate places. [2021-03-24 17:43:09,286 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 700 transitions, 13119 flow [2021-03-24 17:43:09,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:09,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:09,286 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:09,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-03-24 17:43:09,500 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:09,500 INFO L82 PathProgramCache]: Analyzing trace with hash 771180823, now seen corresponding path program 4 times [2021-03-24 17:43:09,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:09,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400792429] [2021-03-24 17:43:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:09,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:43:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:09,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400792429] [2021-03-24 17:43:09,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708858879] [2021-03-24 17:43:09,539 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 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 [2021-03-24 17:43:09,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-24 17:43:09,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:09,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:43:09,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:09,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:09,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:09,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:09,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 17:43:09,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,602 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-24 17:43:09,603 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:43:09,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:09,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:09,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:09,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:09,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:09,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:09,616 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:43:09,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:09,628 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:43:09,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:09,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:09,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:09,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-24 17:43:09,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355625488] [2021-03-24 17:43:09,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:43:09,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:43:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:43:09,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:09,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 700 transitions, 13119 flow. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:09,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:09,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:09,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:11,927 INFO L129 PetriNetUnfolder]: 9508/13596 cut-off events. [2021-03-24 17:43:11,927 INFO L130 PetriNetUnfolder]: For 278625/279028 co-relation queries the response was YES. [2021-03-24 17:43:11,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131904 conditions, 13596 events. 9508/13596 cut-off events. For 278625/279028 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 80195 event pairs, 550 based on Foata normal form. 343/13935 useless extension candidates. Maximal degree in co-relation 131409. Up to 6384 conditions per place. [2021-03-24 17:43:12,195 INFO L132 encePairwiseOnDemand]: 25/38 looper letters, 706 selfloop transitions, 697 changer transitions 0/1412 dead transitions. [2021-03-24 17:43:12,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 1412 transitions, 29014 flow [2021-03-24 17:43:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 17:43:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 17:43:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 261 transitions. [2021-03-24 17:43:12,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7631578947368421 [2021-03-24 17:43:12,197 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 261 transitions. [2021-03-24 17:43:12,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 261 transitions. [2021-03-24 17:43:12,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:12,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 261 transitions. [2021-03-24 17:43:12,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 29.0) internal successors, (261), 9 states have internal predecessors, (261), 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) [2021-03-24 17:43:12,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:12,200 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:12,200 INFO L185 Difference]: Start difference. First operand has 104 places, 700 transitions, 13119 flow. Second operand 9 states and 261 transitions. [2021-03-24 17:43:12,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 1412 transitions, 29014 flow [2021-03-24 17:43:12,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 1412 transitions, 28617 flow, removed 175 selfloop flow, removed 2 redundant places. [2021-03-24 17:43:12,608 INFO L241 Difference]: Finished difference. Result has 117 places, 1068 transitions, 23407 flow [2021-03-24 17:43:12,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=12504, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=23407, PETRI_PLACES=117, PETRI_TRANSITIONS=1068} [2021-03-24 17:43:12,609 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 86 predicate places. [2021-03-24 17:43:12,609 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 1068 transitions, 23407 flow [2021-03-24 17:43:12,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:43:12,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:12,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:12,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:12,824 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:12,824 INFO L82 PathProgramCache]: Analyzing trace with hash 60844531, now seen corresponding path program 1 times [2021-03-24 17:43:12,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:12,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720394907] [2021-03-24 17:43:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:12,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:12,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:43:12,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:12,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:12,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720394907] [2021-03-24 17:43:12,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944113353] [2021-03-24 17:43:12,860 INFO L95 rtionOrderModulation]: Keeping assertion order 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) [2021-03-24 17:43:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:12,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-03-24 17:43:12,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:12,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:12,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:12,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 17:43:12,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:12,935 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:43:12,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:12,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:12,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:12,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-24 17:43:12,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778786322] [2021-03-24 17:43:12,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:12,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:12,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:12,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:12,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 1068 transitions, 23407 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 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) [2021-03-24 17:43:12,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:12,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:12,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:16,187 INFO L129 PetriNetUnfolder]: 10131/14538 cut-off events. [2021-03-24 17:43:16,187 INFO L130 PetriNetUnfolder]: For 364285/365358 co-relation queries the response was YES. [2021-03-24 17:43:16,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154423 conditions, 14538 events. 10131/14538 cut-off events. For 364285/365358 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 86870 event pairs, 511 based on Foata normal form. 148/14683 useless extension candidates. Maximal degree in co-relation 153859. Up to 11499 conditions per place. [2021-03-24 17:43:16,465 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 1267 selfloop transitions, 206 changer transitions 0/1482 dead transitions. [2021-03-24 17:43:16,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 1482 transitions, 34988 flow [2021-03-24 17:43:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 17:43:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 17:43:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2021-03-24 17:43:16,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7443609022556391 [2021-03-24 17:43:16,469 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 198 transitions. [2021-03-24 17:43:16,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 198 transitions. [2021-03-24 17:43:16,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:16,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 198 transitions. [2021-03-24 17:43:16,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2021-03-24 17:43:16,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 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) [2021-03-24 17:43:16,470 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 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) [2021-03-24 17:43:16,470 INFO L185 Difference]: Start difference. First operand has 117 places, 1068 transitions, 23407 flow. Second operand 7 states and 198 transitions. [2021-03-24 17:43:16,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 1482 transitions, 34988 flow [2021-03-24 17:43:17,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 1482 transitions, 34905 flow, removed 38 selfloop flow, removed 1 redundant places. [2021-03-24 17:43:17,223 INFO L241 Difference]: Finished difference. Result has 126 places, 1217 transitions, 27006 flow [2021-03-24 17:43:17,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=23206, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=896, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=27006, PETRI_PLACES=126, PETRI_TRANSITIONS=1217} [2021-03-24 17:43:17,224 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 95 predicate places. [2021-03-24 17:43:17,224 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 1217 transitions, 27006 flow [2021-03-24 17:43:17,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 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) [2021-03-24 17:43:17,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:17,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:17,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:17,428 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:17,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:17,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1108341875, now seen corresponding path program 4 times [2021-03-24 17:43:17,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:17,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090199496] [2021-03-24 17:43:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:17,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,454 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:17,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,459 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:43:17,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:17,468 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:43:17,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:17,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090199496] [2021-03-24 17:43:17,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810296148] [2021-03-24 17:43:17,477 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 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 [2021-03-24 17:43:17,507 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-24 17:43:17,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:17,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:17,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:17,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:17,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:17,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:17,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:17,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:17,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:17,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:17,536 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 17:43:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:17,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:17,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:17,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:17,560 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:17,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:17,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:17,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670952959] [2021-03-24 17:43:17,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:17,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:17,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:17,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:17,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:17,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 1217 transitions, 27006 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:17,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:17,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:17,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:21,730 INFO L129 PetriNetUnfolder]: 11793/16881 cut-off events. [2021-03-24 17:43:21,731 INFO L130 PetriNetUnfolder]: For 474439/474914 co-relation queries the response was YES. [2021-03-24 17:43:21,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187466 conditions, 16881 events. 11793/16881 cut-off events. For 474439/474914 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 103130 event pairs, 1061 based on Foata normal form. 44/16921 useless extension candidates. Maximal degree in co-relation 186835. Up to 15053 conditions per place. [2021-03-24 17:43:21,940 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 1340 selfloop transitions, 485 changer transitions 0/1833 dead transitions. [2021-03-24 17:43:21,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 1833 transitions, 44307 flow [2021-03-24 17:43:21,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:21,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2021-03-24 17:43:21,941 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7236842105263158 [2021-03-24 17:43:21,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 165 transitions. [2021-03-24 17:43:21,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 165 transitions. [2021-03-24 17:43:21,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:21,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 165 transitions. [2021-03-24 17:43:21,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2021-03-24 17:43:21,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:21,943 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:21,943 INFO L185 Difference]: Start difference. First operand has 126 places, 1217 transitions, 27006 flow. Second operand 6 states and 165 transitions. [2021-03-24 17:43:21,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 1833 transitions, 44307 flow [2021-03-24 17:43:23,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 1833 transitions, 44244 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-24 17:43:23,118 INFO L241 Difference]: Finished difference. Result has 133 places, 1665 transitions, 39577 flow [2021-03-24 17:43:23,119 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=26963, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=827, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=39577, PETRI_PLACES=133, PETRI_TRANSITIONS=1665} [2021-03-24 17:43:23,119 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 102 predicate places. [2021-03-24 17:43:23,119 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 1665 transitions, 39577 flow [2021-03-24 17:43:23,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:23,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:23,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:23,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-24 17:43:23,342 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1516625615, now seen corresponding path program 5 times [2021-03-24 17:43:23,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:23,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357199346] [2021-03-24 17:43:23,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:23,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,375 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:23,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,379 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:43:23,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:23,386 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:43:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:23,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357199346] [2021-03-24 17:43:23,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774690965] [2021-03-24 17:43:23,393 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 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 [2021-03-24 17:43:23,416 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:43:23,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:23,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:23,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:23,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:23,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:23,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:23,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:23,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:23,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:23,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:23,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:23,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:23,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:43:23,453 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 17:43:23,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:43:23,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:23,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:23,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:23,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:23,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:23,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:23,461 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:23,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:23,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:23,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:23,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69956580] [2021-03-24 17:43:23,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:23,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:23,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:23,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:23,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:23,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 1665 transitions, 39577 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:23,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:23,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:23,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:29,821 INFO L129 PetriNetUnfolder]: 13556/19420 cut-off events. [2021-03-24 17:43:29,822 INFO L130 PetriNetUnfolder]: For 612561/613123 co-relation queries the response was YES. [2021-03-24 17:43:29,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227125 conditions, 19420 events. 13556/19420 cut-off events. For 612561/613123 co-relation queries the response was YES. Maximal size of possible extension queue 1428. Compared 121256 event pairs, 1154 based on Foata normal form. 51/19467 useless extension candidates. Maximal degree in co-relation 226400. Up to 17528 conditions per place. [2021-03-24 17:43:30,025 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 1767 selfloop transitions, 399 changer transitions 0/2174 dead transitions. [2021-03-24 17:43:30,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 2174 transitions, 55914 flow [2021-03-24 17:43:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2021-03-24 17:43:30,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7324561403508771 [2021-03-24 17:43:30,026 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 167 transitions. [2021-03-24 17:43:30,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 167 transitions. [2021-03-24 17:43:30,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:30,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 167 transitions. [2021-03-24 17:43:30,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 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) [2021-03-24 17:43:30,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:30,027 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:30,027 INFO L185 Difference]: Start difference. First operand has 133 places, 1665 transitions, 39577 flow. Second operand 6 states and 167 transitions. [2021-03-24 17:43:30,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 2174 transitions, 55914 flow [2021-03-24 17:43:31,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 2174 transitions, 55628 flow, removed 143 selfloop flow, removed 0 redundant places. [2021-03-24 17:43:31,663 INFO L241 Difference]: Finished difference. Result has 141 places, 2024 transitions, 49900 flow [2021-03-24 17:43:31,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=39291, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=49900, PETRI_PLACES=141, PETRI_TRANSITIONS=2024} [2021-03-24 17:43:31,664 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 110 predicate places. [2021-03-24 17:43:31,664 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 2024 transitions, 49900 flow [2021-03-24 17:43:31,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:31,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:31,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:31,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-03-24 17:43:31,865 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:31,865 INFO L82 PathProgramCache]: Analyzing trace with hash 533798997, now seen corresponding path program 2 times [2021-03-24 17:43:31,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:31,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352641691] [2021-03-24 17:43:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:31,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:31,878 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-24 17:43:31,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:31,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:31,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352641691] [2021-03-24 17:43:31,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516004580] [2021-03-24 17:43:31,892 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:31,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:43:31,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:31,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:43:31,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:31,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:31,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:31,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:31,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-24 17:43:31,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:43:31,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:31,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:31,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:31,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:31,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:43:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:43:31,951 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:43:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:31,956 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:43:31,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:31,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:43:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:31,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:31,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-03-24 17:43:31,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725353872] [2021-03-24 17:43:31,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 17:43:31,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:31,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 17:43:31,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 17:43:31,968 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:43:31,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 2024 transitions, 49900 flow. Second operand has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2021-03-24 17:43:31,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:31,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:43:31,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:39,728 INFO L129 PetriNetUnfolder]: 14549/20885 cut-off events. [2021-03-24 17:43:39,729 INFO L130 PetriNetUnfolder]: For 716304/716866 co-relation queries the response was YES. [2021-03-24 17:43:39,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251537 conditions, 20885 events. 14549/20885 cut-off events. For 716304/716866 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 130903 event pairs, 388 based on Foata normal form. 698/21581 useless extension candidates. Maximal degree in co-relation 250764. Up to 10422 conditions per place. [2021-03-24 17:43:39,962 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 2307 selfloop transitions, 814 changer transitions 0/3130 dead transitions. [2021-03-24 17:43:39,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 3130 transitions, 82721 flow [2021-03-24 17:43:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 17:43:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 17:43:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 258 transitions. [2021-03-24 17:43:39,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7543859649122807 [2021-03-24 17:43:39,964 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 258 transitions. [2021-03-24 17:43:39,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 258 transitions. [2021-03-24 17:43:39,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:39,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 258 transitions. [2021-03-24 17:43:39,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 28.666666666666668) internal successors, (258), 9 states have internal predecessors, (258), 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) [2021-03-24 17:43:39,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:39,966 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:43:39,966 INFO L185 Difference]: Start difference. First operand has 141 places, 2024 transitions, 49900 flow. Second operand 9 states and 258 transitions. [2021-03-24 17:43:39,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 3130 transitions, 82721 flow [2021-03-24 17:43:41,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 3130 transitions, 81697 flow, removed 512 selfloop flow, removed 0 redundant places. [2021-03-24 17:43:41,866 INFO L241 Difference]: Finished difference. Result has 153 places, 2110 transitions, 53254 flow [2021-03-24 17:43:41,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=46330, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=643, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=53254, PETRI_PLACES=153, PETRI_TRANSITIONS=2110} [2021-03-24 17:43:41,868 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 122 predicate places. [2021-03-24 17:43:41,868 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 2110 transitions, 53254 flow [2021-03-24 17:43:41,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.714285714285715) internal successors, (152), 7 states have internal predecessors, (152), 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) [2021-03-24 17:43:41,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:41,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:42,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-03-24 17:43:42,084 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:42,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1280138191, now seen corresponding path program 1 times [2021-03-24 17:43:42,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:42,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437449118] [2021-03-24 17:43:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:42,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,105 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,114 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:43:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:42,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:42,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437449118] [2021-03-24 17:43:42,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207255948] [2021-03-24 17:43:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:42,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:42,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:42,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:42,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:42,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:42,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:42,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:42,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:42,169 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-24 17:43:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:42,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:42,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:42,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:42,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:42,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:42,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:42,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:42,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:42,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:42,187 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:42,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:42,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:43:42,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:42,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:42,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728327359] [2021-03-24 17:43:42,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:42,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:42,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:42,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:42,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:42,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 2110 transitions, 53254 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:42,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:42,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:42,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:43:50,963 INFO L129 PetriNetUnfolder]: 15640/22496 cut-off events. [2021-03-24 17:43:50,963 INFO L130 PetriNetUnfolder]: For 860633/861601 co-relation queries the response was YES. [2021-03-24 17:43:51,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286135 conditions, 22496 events. 15640/22496 cut-off events. For 860633/861601 co-relation queries the response was YES. Maximal size of possible extension queue 1458. Compared 143422 event pairs, 1153 based on Foata normal form. 130/22623 useless extension candidates. Maximal degree in co-relation 285240. Up to 20758 conditions per place. [2021-03-24 17:43:51,231 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 2154 selfloop transitions, 120 changer transitions 0/2282 dead transitions. [2021-03-24 17:43:51,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 2282 transitions, 62168 flow [2021-03-24 17:43:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:43:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:43:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2021-03-24 17:43:51,233 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2021-03-24 17:43:51,233 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 166 transitions. [2021-03-24 17:43:51,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 166 transitions. [2021-03-24 17:43:51,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:43:51,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 166 transitions. [2021-03-24 17:43:51,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 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) [2021-03-24 17:43:51,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:51,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:43:51,234 INFO L185 Difference]: Start difference. First operand has 153 places, 2110 transitions, 53254 flow. Second operand 6 states and 166 transitions. [2021-03-24 17:43:51,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 2282 transitions, 62168 flow [2021-03-24 17:43:53,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 2282 transitions, 61874 flow, removed 116 selfloop flow, removed 3 redundant places. [2021-03-24 17:43:53,844 INFO L241 Difference]: Finished difference. Result has 157 places, 2194 transitions, 55767 flow [2021-03-24 17:43:53,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=52983, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2039, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=55767, PETRI_PLACES=157, PETRI_TRANSITIONS=2194} [2021-03-24 17:43:53,846 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 126 predicate places. [2021-03-24 17:43:53,846 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 2194 transitions, 55767 flow [2021-03-24 17:43:53,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:53,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:43:53,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:43:54,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:54,047 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:43:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:43:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -830796517, now seen corresponding path program 2 times [2021-03-24 17:43:54,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:43:54,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951757862] [2021-03-24 17:43:54,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:43:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:43:54,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,072 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:43:54,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,080 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:43:54,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:54,088 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:43:54,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:54,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951757862] [2021-03-24 17:43:54,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265838312] [2021-03-24 17:43:54,097 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:43:54,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:43:54,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:43:54,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:43:54,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:43:54,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:43:54,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:54,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:54,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:54,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:43:54,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:54,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:54,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:43:54,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:54,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:54,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:43:54,171 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-24 17:43:54,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:43:54,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:54,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:54,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:54,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:43:54,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:43:54,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:43:54,188 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:43:54,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:43:54,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:43:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:43:54,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:43:54,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:43:54,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724082820] [2021-03-24 17:43:54,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:43:54,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:43:54,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:43:54,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:43:54,209 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:43:54,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 2194 transitions, 55767 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:43:54,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:43:54,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:43:54,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:44:03,641 INFO L129 PetriNetUnfolder]: 16231/23356 cut-off events. [2021-03-24 17:44:03,641 INFO L130 PetriNetUnfolder]: For 918056/918643 co-relation queries the response was YES. [2021-03-24 17:44:03,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299073 conditions, 23356 events. 16231/23356 cut-off events. For 918056/918643 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 149915 event pairs, 1483 based on Foata normal form. 59/23411 useless extension candidates. Maximal degree in co-relation 298115. Up to 22062 conditions per place. [2021-03-24 17:44:03,963 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 2190 selfloop transitions, 112 changer transitions 0/2310 dead transitions. [2021-03-24 17:44:03,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 2310 transitions, 63441 flow [2021-03-24 17:44:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:44:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:44:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2021-03-24 17:44:03,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6973684210526315 [2021-03-24 17:44:03,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 159 transitions. [2021-03-24 17:44:03,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 159 transitions. [2021-03-24 17:44:03,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:44:03,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 159 transitions. [2021-03-24 17:44:03,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2021-03-24 17:44:03,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:03,965 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:03,965 INFO L185 Difference]: Start difference. First operand has 157 places, 2194 transitions, 55767 flow. Second operand 6 states and 159 transitions. [2021-03-24 17:44:03,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 2310 transitions, 63441 flow [2021-03-24 17:44:06,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 2310 transitions, 63049 flow, removed 196 selfloop flow, removed 0 redundant places. [2021-03-24 17:44:06,749 INFO L241 Difference]: Finished difference. Result has 165 places, 2259 transitions, 57750 flow [2021-03-24 17:44:06,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=55419, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57750, PETRI_PLACES=165, PETRI_TRANSITIONS=2259} [2021-03-24 17:44:06,751 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 134 predicate places. [2021-03-24 17:44:06,751 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 2259 transitions, 57750 flow [2021-03-24 17:44:06,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:44:06,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:44:06,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:44:06,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-03-24 17:44:06,952 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:44:06,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:44:06,952 INFO L82 PathProgramCache]: Analyzing trace with hash 446166011, now seen corresponding path program 6 times [2021-03-24 17:44:06,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:44:06,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41227071] [2021-03-24 17:44:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:44:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:44:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:06,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:44:06,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:06,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:06,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:44:06,977 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-24 17:44:06,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:06,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:06,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:44:06,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41227071] [2021-03-24 17:44:06,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252562862] [2021-03-24 17:44:06,984 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:44:07,009 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-24 17:44:07,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:44:07,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:44:07,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:44:07,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:07,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:07,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:07,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:07,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:07,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:44:07,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:44:07,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:07,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:44:07,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:44:07,031 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:44:07,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:44:07,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:44:07,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:44:07,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:07,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:07,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:07,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:07,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:07,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:07,042 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:44:07,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:07,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:44:07,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:44:07,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:44:07,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431782559] [2021-03-24 17:44:07,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:44:07,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:44:07,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:44:07,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:44:07,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:44:07,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 2259 transitions, 57750 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:44:07,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:44:07,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:44:07,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:44:18,654 INFO L129 PetriNetUnfolder]: 18716/26927 cut-off events. [2021-03-24 17:44:18,654 INFO L130 PetriNetUnfolder]: For 1098875/1099508 co-relation queries the response was YES. [2021-03-24 17:44:18,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349182 conditions, 26927 events. 18716/26927 cut-off events. For 1098875/1099508 co-relation queries the response was YES. Maximal size of possible extension queue 1777. Compared 176514 event pairs, 1448 based on Foata normal form. 57/26981 useless extension candidates. Maximal degree in co-relation 348106. Up to 23977 conditions per place. [2021-03-24 17:44:19,045 INFO L132 encePairwiseOnDemand]: 28/38 looper letters, 2397 selfloop transitions, 572 changer transitions 0/2977 dead transitions. [2021-03-24 17:44:19,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 2977 transitions, 82292 flow [2021-03-24 17:44:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:44:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:44:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2021-03-24 17:44:19,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7456140350877193 [2021-03-24 17:44:19,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 170 transitions. [2021-03-24 17:44:19,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 170 transitions. [2021-03-24 17:44:19,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:44:19,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 170 transitions. [2021-03-24 17:44:19,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2021-03-24 17:44:19,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:19,047 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:19,047 INFO L185 Difference]: Start difference. First operand has 165 places, 2259 transitions, 57750 flow. Second operand 6 states and 170 transitions. [2021-03-24 17:44:19,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 2977 transitions, 82292 flow [2021-03-24 17:44:22,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 2977 transitions, 82128 flow, removed 82 selfloop flow, removed 0 redundant places. [2021-03-24 17:44:22,675 INFO L241 Difference]: Finished difference. Result has 174 places, 2768 transitions, 74154 flow [2021-03-24 17:44:22,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=57586, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1844, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74154, PETRI_PLACES=174, PETRI_TRANSITIONS=2768} [2021-03-24 17:44:22,677 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 143 predicate places. [2021-03-24 17:44:22,677 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 2768 transitions, 74154 flow [2021-03-24 17:44:22,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:44:22,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:44:22,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:44:22,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-24 17:44:22,878 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:44:22,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:44:22,878 INFO L82 PathProgramCache]: Analyzing trace with hash 17172871, now seen corresponding path program 3 times [2021-03-24 17:44:22,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:44:22,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640042531] [2021-03-24 17:44:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:44:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:44:22,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,908 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:44:22,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,913 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:44:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:44:22,919 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:44:22,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:44:22,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640042531] [2021-03-24 17:44:22,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330516009] [2021-03-24 17:44:22,925 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:44:22,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-24 17:44:22,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:44:22,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:44:22,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:44:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:22,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:44:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:44:22,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:44:22,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:44:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:22,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:22,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:44:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:44:22,987 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-24 17:44:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:22,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:22,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:44:23,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:23,000 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:44:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:23,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:23,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:44:23,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:44:23,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:44:23,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128787055] [2021-03-24 17:44:23,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:44:23,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:44:23,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:44:23,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:44:23,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:44:23,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 2768 transitions, 74154 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:44:23,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:44:23,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:44:23,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:44:37,514 INFO L129 PetriNetUnfolder]: 19292/27769 cut-off events. [2021-03-24 17:44:37,514 INFO L130 PetriNetUnfolder]: For 1246629/1247251 co-relation queries the response was YES. [2021-03-24 17:44:37,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372688 conditions, 27769 events. 19292/27769 cut-off events. For 1246629/1247251 co-relation queries the response was YES. Maximal size of possible extension queue 1885. Compared 182788 event pairs, 1736 based on Foata normal form. 64/27828 useless extension candidates. Maximal degree in co-relation 371562. Up to 26320 conditions per place. [2021-03-24 17:44:37,900 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 2758 selfloop transitions, 110 changer transitions 0/2876 dead transitions. [2021-03-24 17:44:37,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 2876 transitions, 82862 flow [2021-03-24 17:44:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:44:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:44:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2021-03-24 17:44:37,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6929824561403509 [2021-03-24 17:44:37,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 158 transitions. [2021-03-24 17:44:37,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 158 transitions. [2021-03-24 17:44:37,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:44:37,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 158 transitions. [2021-03-24 17:44:37,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2021-03-24 17:44:37,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:37,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:44:37,903 INFO L185 Difference]: Start difference. First operand has 174 places, 2768 transitions, 74154 flow. Second operand 6 states and 158 transitions. [2021-03-24 17:44:37,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 2876 transitions, 82862 flow [2021-03-24 17:44:41,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 2876 transitions, 81836 flow, removed 513 selfloop flow, removed 0 redundant places. [2021-03-24 17:44:42,004 INFO L241 Difference]: Finished difference. Result has 182 places, 2823 transitions, 75308 flow [2021-03-24 17:44:42,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=73128, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2768, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75308, PETRI_PLACES=182, PETRI_TRANSITIONS=2823} [2021-03-24 17:44:42,006 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 151 predicate places. [2021-03-24 17:44:42,006 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 2823 transitions, 75308 flow [2021-03-24 17:44:42,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:44:42,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:44:42,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:44:42,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:44:42,206 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:44:42,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:44:42,207 INFO L82 PathProgramCache]: Analyzing trace with hash -417317867, now seen corresponding path program 3 times [2021-03-24 17:44:42,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:44:42,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21204578] [2021-03-24 17:44:42,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:44:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:44:42,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:42,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:44:42,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:44:42,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21204578] [2021-03-24 17:44:42,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117350260] [2021-03-24 17:44:42,235 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:44:42,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-24 17:44:42,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:44:42,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:44:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:44:42,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:42,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:42,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:42,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:44:42,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:42,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:42,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:44:42,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:42,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:44:42,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:44:42,281 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:44:42,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:42,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:44:42,290 INFO L142 QuantifierPusher]: treesize reduction 1, result has 93.3 percent of original size [2021-03-24 17:44:42,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:44:42,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:44:42,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:44:42,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:44:42,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:44:42,301 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-24 17:44:42,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:44:42,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:44:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:44:42,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:44:42,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-24 17:44:42,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555984445] [2021-03-24 17:44:42,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:44:42,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:44:42,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:44:42,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:44:42,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:44:42,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 2823 transitions, 75308 flow. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:44:42,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:44:42,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:44:42,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:45:00,740 INFO L129 PetriNetUnfolder]: 24110/35681 cut-off events. [2021-03-24 17:45:00,740 INFO L130 PetriNetUnfolder]: For 1647355/1647979 co-relation queries the response was YES. [2021-03-24 17:45:01,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468812 conditions, 35681 events. 24110/35681 cut-off events. For 1647355/1647979 co-relation queries the response was YES. Maximal size of possible extension queue 2383. Compared 255416 event pairs, 460 based on Foata normal form. 774/36452 useless extension candidates. Maximal degree in co-relation 466596. Up to 12971 conditions per place. [2021-03-24 17:45:01,415 INFO L132 encePairwiseOnDemand]: 25/38 looper letters, 2792 selfloop transitions, 1988 changer transitions 0/4789 dead transitions. [2021-03-24 17:45:01,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 4789 transitions, 134387 flow [2021-03-24 17:45:01,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 17:45:01,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 17:45:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 380 transitions. [2021-03-24 17:45:01,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2021-03-24 17:45:01,416 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 380 transitions. [2021-03-24 17:45:01,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 380 transitions. [2021-03-24 17:45:01,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:45:01,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 380 transitions. [2021-03-24 17:45:01,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.23076923076923) internal successors, (380), 13 states have internal predecessors, (380), 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) [2021-03-24 17:45:01,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 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) [2021-03-24 17:45:01,418 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 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) [2021-03-24 17:45:01,418 INFO L185 Difference]: Start difference. First operand has 182 places, 2823 transitions, 75308 flow. Second operand 13 states and 380 transitions. [2021-03-24 17:45:01,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 4789 transitions, 134387 flow [2021-03-24 17:45:07,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 4789 transitions, 134023 flow, removed 182 selfloop flow, removed 0 redundant places. [2021-03-24 17:45:07,215 INFO L241 Difference]: Finished difference. Result has 202 places, 3806 transitions, 109711 flow [2021-03-24 17:45:07,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=73315, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2767, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=109711, PETRI_PLACES=202, PETRI_TRANSITIONS=3806} [2021-03-24 17:45:07,217 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 171 predicate places. [2021-03-24 17:45:07,218 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 3806 transitions, 109711 flow [2021-03-24 17:45:07,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:45:07,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:45:07,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:45:07,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:45:07,432 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:45:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:45:07,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1601211165, now seen corresponding path program 4 times [2021-03-24 17:45:07,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:45:07,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008964001] [2021-03-24 17:45:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:45:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:45:07,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:07,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:45:07,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:45:07,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008964001] [2021-03-24 17:45:07,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435342988] [2021-03-24 17:45:07,451 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:45:07,489 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-24 17:45:07,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:45:07,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:45:07,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:45:07,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:07,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:07,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:07,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:07,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:07,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:45:07,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:45:07,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:07,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:45:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:45:07,512 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:45:07,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:07,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:45:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:07,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:45:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:45:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,540 INFO L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-03-24 17:45:07,541 INFO L142 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-03-24 17:45:07,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:07,544 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:45:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:07,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:45:07,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:45:07,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:45:07,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-03-24 17:45:07,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658956137] [2021-03-24 17:45:07,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:45:07,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:45:07,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:45:07,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:45:07,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:45:07,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 3806 transitions, 109711 flow. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:45:07,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:45:07,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:45:07,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:45:38,949 INFO L129 PetriNetUnfolder]: 28555/42692 cut-off events. [2021-03-24 17:45:38,949 INFO L130 PetriNetUnfolder]: For 2389736/2390393 co-relation queries the response was YES. [2021-03-24 17:45:39,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619198 conditions, 42692 events. 28555/42692 cut-off events. For 2389736/2390393 co-relation queries the response was YES. Maximal size of possible extension queue 2581. Compared 316121 event pairs, 767 based on Foata normal form. 334/43023 useless extension candidates. Maximal degree in co-relation 616258. Up to 15158 conditions per place. [2021-03-24 17:45:39,704 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 2420 selfloop transitions, 2790 changer transitions 0/5219 dead transitions. [2021-03-24 17:45:39,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 5219 transitions, 159916 flow [2021-03-24 17:45:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 17:45:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 17:45:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 265 transitions. [2021-03-24 17:45:39,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7748538011695907 [2021-03-24 17:45:39,705 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 265 transitions. [2021-03-24 17:45:39,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 265 transitions. [2021-03-24 17:45:39,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:45:39,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 265 transitions. [2021-03-24 17:45:39,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 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) [2021-03-24 17:45:39,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:45:39,707 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 38.0) internal successors, (380), 10 states have internal predecessors, (380), 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) [2021-03-24 17:45:39,707 INFO L185 Difference]: Start difference. First operand has 202 places, 3806 transitions, 109711 flow. Second operand 9 states and 265 transitions. [2021-03-24 17:45:39,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 5219 transitions, 159916 flow [2021-03-24 17:45:50,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 5219 transitions, 158015 flow, removed 940 selfloop flow, removed 3 redundant places. [2021-03-24 17:45:50,613 INFO L241 Difference]: Finished difference. Result has 212 places, 4491 transitions, 139939 flow [2021-03-24 17:45:50,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108118, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3794, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=139939, PETRI_PLACES=212, PETRI_TRANSITIONS=4491} [2021-03-24 17:45:50,616 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 181 predicate places. [2021-03-24 17:45:50,616 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 4491 transitions, 139939 flow [2021-03-24 17:45:50,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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) [2021-03-24 17:45:50,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:45:50,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:45:50,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:45:50,817 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:45:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:45:50,818 INFO L82 PathProgramCache]: Analyzing trace with hash -120063055, now seen corresponding path program 4 times [2021-03-24 17:45:50,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:45:50,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370949367] [2021-03-24 17:45:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:45:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:45:50,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,832 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:45:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,837 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:45:50,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:45:50,844 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:45:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:45:50,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370949367] [2021-03-24 17:45:50,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684079366] [2021-03-24 17:45:50,852 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:45:50,871 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-24 17:45:50,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:45:50,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:45:50,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:45:50,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:45:50,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:45:50,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:45:50,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:45:50,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:45:50,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:50,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:45:50,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:45:50,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:50,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:45:50,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:45:50,896 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-24 17:45:50,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:45:50,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:50,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:45:50,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:45:50,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:45:50,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:45:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:45:50,907 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:45:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:45:50,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:45:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:45:50,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:45:50,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:45:50,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700234804] [2021-03-24 17:45:50,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:45:50,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:45:50,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:45:50,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:45:50,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:45:50,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 4491 transitions, 139939 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:45:50,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:45:50,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:45:50,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:46:29,611 INFO L129 PetriNetUnfolder]: 29096/43381 cut-off events. [2021-03-24 17:46:29,611 INFO L130 PetriNetUnfolder]: For 2692231/2693684 co-relation queries the response was YES. [2021-03-24 17:46:30,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 662496 conditions, 43381 events. 29096/43381 cut-off events. For 2692231/2693684 co-relation queries the response was YES. Maximal size of possible extension queue 2663. Compared 321284 event pairs, 1791 based on Foata normal form. 86/43461 useless extension candidates. Maximal degree in co-relation 659585. Up to 40698 conditions per place. [2021-03-24 17:46:30,332 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 4492 selfloop transitions, 130 changer transitions 0/4630 dead transitions. [2021-03-24 17:46:30,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 4630 transitions, 153960 flow [2021-03-24 17:46:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:46:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:46:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2021-03-24 17:46:30,333 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6929824561403509 [2021-03-24 17:46:30,333 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 158 transitions. [2021-03-24 17:46:30,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 158 transitions. [2021-03-24 17:46:30,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:46:30,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 158 transitions. [2021-03-24 17:46:30,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2021-03-24 17:46:30,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:46:30,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:46:30,334 INFO L185 Difference]: Start difference. First operand has 212 places, 4491 transitions, 139939 flow. Second operand 6 states and 158 transitions. [2021-03-24 17:46:30,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 4630 transitions, 153960 flow [2021-03-24 17:46:43,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 4630 transitions, 152041 flow, removed 928 selfloop flow, removed 2 redundant places. [2021-03-24 17:46:43,869 INFO L241 Difference]: Finished difference. Result has 218 places, 4565 transitions, 141499 flow [2021-03-24 17:46:43,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=138042, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141499, PETRI_PLACES=218, PETRI_TRANSITIONS=4565} [2021-03-24 17:46:43,873 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 187 predicate places. [2021-03-24 17:46:43,873 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 4565 transitions, 141499 flow [2021-03-24 17:46:43,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:46:43,873 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:46:43,873 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:46:44,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-03-24 17:46:44,088 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:46:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:46:44,088 INFO L82 PathProgramCache]: Analyzing trace with hash -2141115871, now seen corresponding path program 5 times [2021-03-24 17:46:44,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:46:44,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099874111] [2021-03-24 17:46:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:46:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:46:44,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,105 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:46:44,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,113 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:46:44,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:46:44,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099874111] [2021-03-24 17:46:44,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077964640] [2021-03-24 17:46:44,120 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:46:44,141 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:46:44,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:46:44,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:46:44,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:46:44,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:46:44,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:46:44,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:46:44,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:46:44,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:46:44,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:46:44,167 INFO L142 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-03-24 17:46:44,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:46:44,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:46:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:46:44,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:46:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:46:44,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:46:44,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:46:44,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:46:44,182 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:46:44,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:46:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:46:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:46:44,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:46:44,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:46:44,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84274866] [2021-03-24 17:46:44,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:46:44,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:46:44,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:46:44,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:46:44,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:46:44,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 4565 transitions, 141499 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:46:44,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:46:44,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:46:44,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:47:24,667 INFO L129 PetriNetUnfolder]: 30317/45252 cut-off events. [2021-03-24 17:47:24,667 INFO L130 PetriNetUnfolder]: For 2822969/2823617 co-relation queries the response was YES. [2021-03-24 17:47:25,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688824 conditions, 45252 events. 30317/45252 cut-off events. For 2822969/2823617 co-relation queries the response was YES. Maximal size of possible extension queue 2805. Compared 337795 event pairs, 1834 based on Foata normal form. 42/45289 useless extension candidates. Maximal degree in co-relation 685672. Up to 41841 conditions per place. [2021-03-24 17:47:25,687 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 4615 selfloop transitions, 169 changer transitions 0/4792 dead transitions. [2021-03-24 17:47:25,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 4792 transitions, 158936 flow [2021-03-24 17:47:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:47:25,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:47:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2021-03-24 17:47:25,688 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2021-03-24 17:47:25,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 166 transitions. [2021-03-24 17:47:25,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 166 transitions. [2021-03-24 17:47:25,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:47:25,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 166 transitions. [2021-03-24 17:47:25,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 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) [2021-03-24 17:47:25,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:47:25,689 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:47:25,689 INFO L185 Difference]: Start difference. First operand has 218 places, 4565 transitions, 141499 flow. Second operand 6 states and 166 transitions. [2021-03-24 17:47:25,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 4792 transitions, 158936 flow [2021-03-24 17:47:39,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 4792 transitions, 158622 flow, removed 157 selfloop flow, removed 0 redundant places. [2021-03-24 17:47:39,330 INFO L241 Difference]: Finished difference. Result has 225 places, 4674 transitions, 146233 flow [2021-03-24 17:47:39,333 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=141185, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146233, PETRI_PLACES=225, PETRI_TRANSITIONS=4674} [2021-03-24 17:47:39,333 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 194 predicate places. [2021-03-24 17:47:39,333 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 4674 transitions, 146233 flow [2021-03-24 17:47:39,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:47:39,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:47:39,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:47:39,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-03-24 17:47:39,533 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:47:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:47:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash -2109015935, now seen corresponding path program 6 times [2021-03-24 17:47:39,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:47:39,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646956055] [2021-03-24 17:47:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:47:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:47:39,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,550 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:47:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,554 INFO L142 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-03-24 17:47:39,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:47:39,561 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:47:39,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:47:39,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646956055] [2021-03-24 17:47:39,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156329485] [2021-03-24 17:47:39,569 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:47:39,589 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-03-24 17:47:39,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:47:39,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-24 17:47:39,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:47:39,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:47:39,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:47:39,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:47:39,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:47:39,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:47:39,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:47:39,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:47:39,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:47:39,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:47:39,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:47:39,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 17:47:39,608 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-24 17:47:39,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:47:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:47:39,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:47:39,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:47:39,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:47:39,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:47:39,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:47:39,616 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:47:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:47:39,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:47:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-24 17:47:39,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:47:39,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-24 17:47:39,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959613088] [2021-03-24 17:47:39,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 17:47:39,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:47:39,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 17:47:39,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 17:47:39,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:47:39,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 4674 transitions, 146233 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:47:39,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:47:39,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:47:39,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:48:23,646 INFO L129 PetriNetUnfolder]: 30937/46200 cut-off events. [2021-03-24 17:48:23,647 INFO L130 PetriNetUnfolder]: For 2975477/2976112 co-relation queries the response was YES. [2021-03-24 17:48:24,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709789 conditions, 46200 events. 30937/46200 cut-off events. For 2975477/2976112 co-relation queries the response was YES. Maximal size of possible extension queue 2917. Compared 346411 event pairs, 2021 based on Foata normal form. 42/46237 useless extension candidates. Maximal degree in co-relation 706499. Up to 43276 conditions per place. [2021-03-24 17:48:24,812 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 4675 selfloop transitions, 134 changer transitions 0/4817 dead transitions. [2021-03-24 17:48:24,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 4817 transitions, 161059 flow [2021-03-24 17:48:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 17:48:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 17:48:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2021-03-24 17:48:24,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6973684210526315 [2021-03-24 17:48:24,820 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 159 transitions. [2021-03-24 17:48:24,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 159 transitions. [2021-03-24 17:48:24,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:48:24,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 159 transitions. [2021-03-24 17:48:24,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2021-03-24 17:48:24,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:48:24,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 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) [2021-03-24 17:48:24,821 INFO L185 Difference]: Start difference. First operand has 225 places, 4674 transitions, 146233 flow. Second operand 6 states and 159 transitions. [2021-03-24 17:48:24,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 4817 transitions, 161059 flow [2021-03-24 17:48:37,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 4817 transitions, 160109 flow, removed 475 selfloop flow, removed 0 redundant places. [2021-03-24 17:48:37,963 INFO L241 Difference]: Finished difference. Result has 233 places, 4746 transitions, 149001 flow [2021-03-24 17:48:37,966 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=145395, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149001, PETRI_PLACES=233, PETRI_TRANSITIONS=4746} [2021-03-24 17:48:37,966 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 202 predicate places. [2021-03-24 17:48:37,966 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 4746 transitions, 149001 flow [2021-03-24 17:48:37,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2021-03-24 17:48:37,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:48:37,966 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:48:38,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:48:38,167 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:48:38,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:48:38,167 INFO L82 PathProgramCache]: Analyzing trace with hash 60743245, now seen corresponding path program 7 times [2021-03-24 17:48:38,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:48:38,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787384436] [2021-03-24 17:48:38,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:48:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:48:38,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:48:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:48:38,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:48:38,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 17:48:38,183 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-24 17:48:38,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:48:38,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:48:38,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:48:38,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:48:38,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:48:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:48:38,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787384436] [2021-03-24 17:48:38,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 17:48:38,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 17:48:38,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191778730] [2021-03-24 17:48:38,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 17:48:38,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:48:38,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 17:48:38,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 17:48:38,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 38 [2021-03-24 17:48:38,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 4746 transitions, 149001 flow. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-03-24 17:48:38,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:48:38,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 38 [2021-03-24 17:48:38,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:48:46,202 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([84] L30-->L30-1: Formula: (let ((.cse0 (< 1 v_n1_17))) (and (= v_n1_16 (ite .cse0 (+ v_n1_17 (- 2)) v_n1_17)) (= (ite .cse0 (+ v_p1_12 (* v_m_9 2)) v_p1_12) v_p1_11))) InVars {p1=v_p1_12, m=v_m_9, n1=v_n1_17} OutVars{p1=v_p1_11, m=v_m_9, n1=v_n1_16} AuxVars[] AssignedVars[p1, n1][539], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 9#L19true, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 25#L41-1true, 28#L30-1true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), 576#true, Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), 362#true, Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), 120#true, Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 838#(<= 2 n2), Black: 604#(< 1 n1), Black: 839#(<= 1 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), 1482#true, Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:46,202 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([80] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= (ite .cse0 (+ v_n1_13 (- 1)) v_n1_13) v_n1_12) (= (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8) v_p1_7))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1][782], [Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), 1024#true, Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 25#L41-1true, 26#L30true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, 580#(<= 1 n1), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), 120#true, Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 838#(<= 2 n2), Black: 604#(< 1 n1), Black: 839#(<= 1 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), 711#true, Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), 1482#true, Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:46,202 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,202 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:46,464 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([80] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= (ite .cse0 (+ v_n1_13 (- 1)) v_n1_13) v_n1_12) (= (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8) v_p1_7))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1][782], [Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), 1024#true, Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, Black: 1250#(and (<= n1 n2) (< 0 n2)), 17#L41true, Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 26#L30true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 55#(<= 1 n2), Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 580#(<= 1 n1), 839#(<= 1 n2), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 51#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), 120#true, Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 834#true, Black: 838#(<= 2 n2), Black: 604#(< 1 n1), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), 711#true, Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), 1482#true, Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1233#(<= 1 n2), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:46,464 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-03-24 17:48:46,464 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:46,464 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:46,464 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:52,346 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([80] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= (ite .cse0 (+ v_n1_13 (- 1)) v_n1_13) v_n1_12) (= (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8) v_p1_7))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1][782], [Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), 1024#true, Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, Black: 1250#(and (<= n1 n2) (< 0 n2)), 17#L41true, Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 26#L30true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 55#(<= 1 n2), Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 580#(<= 1 n1), 839#(<= 1 n2), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 51#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), 120#true, Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 834#true, Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 651#(<= 2 n2), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), 711#true, Black: 1424#(and (< 1 n2) (= p2 p1)), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), 1482#true, Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1233#(<= 1 n2), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 965#(= p1 p2), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:52,347 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-03-24 17:48:52,347 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:52,347 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:52,347 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-24 17:48:52,347 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:52,821 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([84] L30-->L30-1: Formula: (let ((.cse0 (< 1 v_n1_17))) (and (= v_n1_16 (ite .cse0 (+ v_n1_17 (- 2)) v_n1_17)) (= (ite .cse0 (+ v_p1_12 (* v_m_9 2)) v_p1_12) v_p1_11))) InVars {p1=v_p1_12, m=v_m_9, n1=v_n1_17} OutVars{p1=v_p1_11, m=v_m_9, n1=v_n1_16} AuxVars[] AssignedVars[p1, n1][539], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 9#L19true, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 25#L41-1true, 28#L30-1true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), 576#true, Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, 362#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), 120#true, Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 895#(and (<= n1 n2) (<= 1 n2)), Black: 591#(and (<= n2 n1) (< 0 n1)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), 1482#true, Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:52,821 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:52,821 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,821 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:48:52,821 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,821 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([80] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= (ite .cse0 (+ v_n1_13 (- 1)) v_n1_13) v_n1_12) (= (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8) v_p1_7))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1][782], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 25#L41-1true, 26#L30true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, 580#(<= 1 n1), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), 120#true, Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 895#(and (<= n1 n2) (<= 1 n2)), Black: 591#(and (<= n2 n1) (< 0 n1)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), 1482#true, Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:52,822 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L41-1-->thread3EXIT: Formula: (not (< 0 v_n2_20)) InVars {n2=v_n2_20} OutVars{n2=v_n2_20} AuxVars[] AssignedVars[][120], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 9#L19true, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 20#thread3EXITtrue, 1300#true, 26#L30true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, 356#(and (<= n2 1) (<= n2 n1)), Black: 306#(<= n2 n1), Black: 298#true, Black: 302#(<= n2 1), Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), 377#(and (<= n2 n1) (< 0 n1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1147#true, 638#(and (< 1 n1) (<= n2 n1)), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 839#(<= 1 n2), Black: 895#(and (<= n1 n2) (<= 1 n2)), Black: 591#(and (<= n2 n1) (< 0 n1)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, 172#(and (<= 1 n1) (<= n2 n1)), Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 120#true, Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 177#true, Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 655#(<= n1 n2), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), 1484#(< 0 n1), Black: 1151#(<= n1 1), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 500#(and (<= n2 1) (< 0 n1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:52,822 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:52,822 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:48:56,831 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([90] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[][241], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, 10#thread2EXITtrue, Black: 1250#(and (<= n1 n2) (< 0 n2)), 17#L41true, Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 21#L52true, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 298#true, Black: 48#(= p2 p1), 55#(<= 1 n2), Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), 1086#true, Black: 518#(and (= p2 p1) (< 0 n1)), Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), 576#true, Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 838#(<= 2 n2), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 51#true, Black: 302#(<= n2 1), 362#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), 120#true, Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 834#true, Black: 604#(< 1 n1), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 895#(and (<= n1 n2) (<= 1 n2)), Black: 591#(and (<= n2 n1) (< 0 n1)), 903#true, 651#(<= 2 n2), Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 432#true, 177#true, 1213#(and (<= n1 1) (< 0 n2)), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 647#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1486#(<= n1 0), 1233#(<= 1 n2), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1))]) [2021-03-24 17:48:56,832 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-03-24 17:48:56,832 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-24 17:48:56,832 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:56,832 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-24 17:48:59,082 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L41-1-->thread3EXIT: Formula: (not (< 0 v_n2_20)) InVars {n2=v_n2_20} OutVars{n2=v_n2_20} AuxVars[] AssignedVars[][120], [Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), 1024#true, Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 10#thread2EXITtrue, 11#thread1EXITtrue, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 20#thread3EXITtrue, 1300#true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), 576#true, Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), 362#true, Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 113#(<= n1 0), Black: 112#(= n2 n1), Black: 1088#(= p2 p1), 120#true, Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 647#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 124#(<= 1 n1), 177#true, 436#(<= n2 1), 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 651#(<= 2 n2), Black: 655#(<= n1 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 1424#(and (< 1 n2) (= p2 p1)), Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), 711#true, Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1151#(<= n1 1), 1486#(<= n1 0), 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2)))]) [2021-03-24 17:48:59,083 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-03-24 17:48:59,083 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:48:59,083 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:48:59,083 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:01,575 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([106] L19-1-->thread1EXIT: Formula: (not (< 0 v_n1_20)) InVars {n1=v_n1_20} OutVars{n1=v_n1_20} AuxVars[] AssignedVars[][691], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 10#thread2EXITtrue, 11#thread1EXITtrue, Black: 1233#(<= 1 n2), 17#L41true, Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 775#(= p2 p1), Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 776#(and (< 0 n2) (= p2 p1)), 576#true, Black: 778#(and (= (+ m p1) p2) (< 0 n1)), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), 103#(and (<= n1 n2) (<= 1 n2)), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 51#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 55#(<= 1 n2), 113#(<= n1 0), Black: 112#(= n2 n1), Black: 1088#(= p2 p1), 120#true, Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 895#(and (<= n1 n2) (<= 1 n2)), Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 834#true, Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 839#(<= 1 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), 647#true, 903#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, 1213#(and (<= n1 1) (< 0 n2)), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), Black: 651#(<= 2 n2), Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 655#(<= n1 n2), Black: 1424#(and (< 1 n2) (= p2 p1)), Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), 711#true, Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1486#(<= n1 0), 1250#(and (<= n1 n2) (< 0 n2)), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 965#(= p1 p2), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1))]) [2021-03-24 17:49:01,575 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-24 17:49:01,575 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:01,575 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:01,575 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,568 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([90] L52-1-->L52: Formula: (< 1 v_n2_7) InVars {n2=v_n2_7} OutVars{n2=v_n2_7} AuxVars[] AssignedVars[][241], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 9#L19true, 10#thread2EXITtrue, Black: 1250#(and (<= n1 n2) (< 0 n2)), 17#L41true, Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 21#L52true, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 298#true, Black: 48#(= p2 p1), 55#(<= 1 n2), Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 775#(= p2 p1), Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 580#(<= 1 n1), 838#(<= 2 n2), Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 51#true, Black: 302#(<= n2 1), Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 124#(<= 1 n1), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 834#true, Black: 604#(< 1 n1), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 903#true, 651#(<= 2 n2), Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 120#true, Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 177#true, 1213#(and (<= n1 1) (< 0 n2)), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), 963#true, Black: 705#(and (<= n1 n2) (<= 2 n2)), 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 647#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 655#(<= n1 n2), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), Black: 1151#(<= n1 1), 1484#(< 0 n1), 1233#(<= 1 n2), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1))]) [2021-03-24 17:49:05,568 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-24 17:49:05,568 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,568 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-24 17:49:05,568 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-24 17:49:05,627 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L41-1-->thread3EXIT: Formula: (not (< 0 v_n2_20)) InVars {n2=v_n2_20} OutVars{n2=v_n2_20} AuxVars[] AssignedVars[][120], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 9#L19true, 10#thread2EXITtrue, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 20#thread3EXITtrue, 1300#true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), 591#(and (<= n2 n1) (< 0 n1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), 377#(and (<= n2 n1) (< 0 n1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 1151#(<= n1 1), Black: 576#true, Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 839#(<= 1 n2), Black: 895#(and (<= n1 n2) (<= 1 n2)), 647#true, 903#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), 172#(and (<= 1 n1) (<= n2 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 120#true, Black: 124#(<= 1 n1), Black: 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 177#true, 436#(<= n2 1), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 651#(<= 2 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 655#(<= n1 n2), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), 1485#(and (<= n1 1) (< 0 n1)), 1229#true, Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1))]) [2021-03-24 17:49:05,627 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-24 17:49:05,627 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([80] L19-->L19-1: Formula: (let ((.cse0 (< 0 v_n1_13))) (and (= (ite .cse0 (+ v_n1_13 (- 1)) v_n1_13) v_n1_12) (= (ite .cse0 (+ v_p1_8 v_m_7) v_p1_8) v_p1_7))) InVars {p1=v_p1_8, m=v_m_7, n1=v_n1_13} OutVars{p1=v_p1_7, m=v_m_7, n1=v_n1_12} AuxVars[] AssignedVars[p1, n1][1248], [1024#true, Black: 504#(and (< 0 (+ n1 1)) (<= n2 1) (<= n2 n1)), Black: 713#(= p1 p2), Black: 714#(and (< 0 n2) (= p2 p1)), Black: 447#(and (<= n2 n1) (< 0 n1)), Black: 715#(and (< 0 n2) (= p2 p1) (< 0 n1)), 515#true, Black: 716#(and (= (+ m p2) p1) (< 0 n2)), 773#true, 6#L19-1true, 10#thread2EXITtrue, Black: 1233#(<= 1 n2), Black: 1250#(and (<= n1 n2) (< 0 n2)), Black: 1254#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1291#(and (<= n1 (+ n2 1)) (<= 1 n2)), Black: 1293#(and (<= n1 n2) (< 0 (+ n2 1))), 1300#true, 25#L41-1true, 32#thread4EXITtrue, 34#L66true, Black: 240#(and (= p2 p1) (< 0 n1)), Black: 241#(= (+ m p2) p1), Black: 239#(= p1 p2), 302#(<= n2 1), Black: 48#(= p2 p1), 51#true, Black: 1026#(= p2 p1), Black: 1027#(and (< 0 n2) (= p2 p1)), Black: 1028#(= (+ m p1) p2), Black: 1029#(and (= (+ m p1) p2) (< 0 n1)), Black: 517#(= p2 p1), Black: 518#(and (= p2 p1) (< 0 n1)), 1086#true, Black: 520#(and (= (+ m p1) p2) (< 0 n1)), Black: 775#(= p2 p1), 576#true, Black: 776#(and (< 0 n2) (= p2 p1)), Black: 778#(and (= (+ m p1) p2) (< 0 n1)), 834#true, Black: 1302#(= p1 p2), Black: 1303#(and (< 1 n2) (= p2 p1)), Black: 1305#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), 1361#true, Black: 306#(<= n2 n1), Black: 356#(and (<= n2 1) (<= n2 n1)), Black: 298#true, Black: 53#(= n1 n2), Black: 54#(and (<= 1 n1) (= n2 n1)), Black: 103#(and (<= n1 n2) (<= 1 n2)), Black: 55#(<= 1 n2), 110#true, Black: 112#(= n2 n1), Black: 113#(<= n1 0), 120#true, Black: 1088#(= p2 p1), Black: 1089#(and (< 1 n1) (= p2 p1)), Black: 1091#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), 381#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), 1151#(<= n1 1), Black: 579#(and (<= 2 n2) (= n2 n1)), Black: 580#(<= 1 n1), Black: 636#(and (< 0 n1) (= n2 n1)), Black: 604#(< 1 n1), Black: 838#(<= 2 n2), Black: 839#(<= 1 n2), Black: 638#(and (< 1 n1) (<= n2 n1)), Black: 591#(and (<= n2 n1) (< 0 n1)), Black: 895#(and (<= n1 n2) (<= 1 n2)), 647#true, 903#true, Black: 1363#(= p2 p1), Black: 1365#(= (+ (* 2 m) p1) p2), 1421#true, Black: 424#(and (<= 1 n1) (<= n2 (+ n1 1))), Black: 377#(and (<= n2 n1) (< 0 n1)), Black: 426#(and (< 0 (+ n1 1)) (<= n2 n1)), Black: 124#(<= 1 n1), 177#true, 436#(<= n2 1), Black: 905#(= p1 p2), Black: 907#(= p1 (+ (* 2 m) p2)), Black: 705#(and (<= n1 n2) (<= 2 n2)), 963#true, Black: 1168#(and (<= n1 n2) (< 0 n2)), Black: 651#(<= 2 n2), Black: 1217#(and (<= n1 n2) (< 0 (+ n2 1))), Black: 655#(<= n1 n2), Black: 1424#(and (< 1 n2) (= p2 p1)), 711#true, Black: 1219#(and (<= n1 n2) (<= n1 1) (< 0 (+ n2 1))), Black: 1426#(and (< 1 n1) (= (+ (* 2 m) p1) p2)), Black: 1172#(and (< 0 (+ n2 1)) (<= n1 (+ n2 1))), Black: 1147#true, Black: 1423#(= p2 p1), Black: 1213#(and (<= n1 1) (< 0 n2)), Black: 1215#(and (<= n1 1) (< 0 (+ n2 1))), 1229#true, 1486#(<= n1 0), Black: 179#(= p1 p2), Black: 180#(and (= p2 p1) (< 0 n1)), 237#true, Black: 496#(and (<= n2 1) (< 0 n1) (= n2 n1)), Black: 432#true, Black: 498#(and (< 0 (+ n1 1)) (<= n2 1)), Black: 965#(= p1 p2), Black: 451#(and (< 0 (+ n1 1)) (<= n2 (+ n1 1))), Black: 500#(and (<= n2 1) (< 0 n1)), Black: 966#(and (< 1 n1) (= p2 p1)), Black: 968#(and (< 1 n2) (= p1 (+ (* 2 m) p2))), Black: 502#(and (< 0 (+ n1 1)) (<= n2 n1))]) [2021-03-24 17:49:05,628 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:05,628 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-03-24 17:49:13,616 INFO L129 PetriNetUnfolder]: 30204/46630 cut-off events. [2021-03-24 17:49:13,617 INFO L130 PetriNetUnfolder]: For 3329045/3341943 co-relation queries the response was YES. [2021-03-24 17:49:14,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 711883 conditions, 46630 events. 30204/46630 cut-off events. For 3329045/3341943 co-relation queries the response was YES. Maximal size of possible extension queue 3333. Compared 376025 event pairs, 1243 based on Foata normal form. 4071/49968 useless extension candidates. Maximal degree in co-relation 708703. Up to 16548 conditions per place. [2021-03-24 17:49:14,506 INFO L132 encePairwiseOnDemand]: 32/38 looper letters, 492 selfloop transitions, 2328 changer transitions 2/5112 dead transitions. [2021-03-24 17:49:14,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 5112 transitions, 166336 flow [2021-03-24 17:49:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 17:49:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 17:49:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2021-03-24 17:49:14,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8263157894736842 [2021-03-24 17:49:14,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 157 transitions. [2021-03-24 17:49:14,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 157 transitions. [2021-03-24 17:49:14,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:49:14,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 157 transitions. [2021-03-24 17:49:14,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2021-03-24 17:49:14,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:49:14,508 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2021-03-24 17:49:14,508 INFO L185 Difference]: Start difference. First operand has 233 places, 4746 transitions, 149001 flow. Second operand 5 states and 157 transitions. [2021-03-24 17:49:14,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 5112 transitions, 166336 flow [2021-03-24 17:49:28,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 5112 transitions, 165976 flow, removed 180 selfloop flow, removed 0 redundant places. [2021-03-24 17:49:28,862 INFO L241 Difference]: Finished difference. Result has 239 places, 5070 transitions, 168099 flow [2021-03-24 17:49:28,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=147580, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1971, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168099, PETRI_PLACES=239, PETRI_TRANSITIONS=5070} [2021-03-24 17:49:28,865 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 208 predicate places. [2021-03-24 17:49:28,865 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 5070 transitions, 168099 flow [2021-03-24 17:49:28,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-03-24 17:49:28,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:49:28,866 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:49:28,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 17:49:28,866 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:49:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:49:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash 454989371, now seen corresponding path program 8 times [2021-03-24 17:49:28,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:49:28,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516272442] [2021-03-24 17:49:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:49:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:49:28,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,879 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:49:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,885 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-24 17:49:28,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:49:28,892 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-24 17:49:28,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:49:28,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516272442] [2021-03-24 17:49:28,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357070134] [2021-03-24 17:49:28,902 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-24 17:49:28,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-24 17:49:28,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:49:28,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-24 17:49:28,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:49:28,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:49:28,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,970 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.9 percent of original size [2021-03-24 17:49:28,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 17:49:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:49:28,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 17:49:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:49:28,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:49:28,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:49:28,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:49:28,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:49:28,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:49:28,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:49:28,984 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:49:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:49:28,985 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-03-24 17:49:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:28,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:49:28,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:49:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:49:29,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:49:29,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-03-24 17:49:29,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564691965] [2021-03-24 17:49:29,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 17:49:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:49:29,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 17:49:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-24 17:49:29,001 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:49:29,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 5070 transitions, 168099 flow. Second operand has 9 states, 9 states have (on average 21.77777777777778) internal successors, (196), 9 states have internal predecessors, (196), 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) [2021-03-24 17:49:29,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:49:29,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:49:29,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:50:31,476 INFO L129 PetriNetUnfolder]: 35203/53616 cut-off events. [2021-03-24 17:50:31,476 INFO L130 PetriNetUnfolder]: For 3872773/3874161 co-relation queries the response was YES. [2021-03-24 17:50:32,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 868966 conditions, 53616 events. 35203/53616 cut-off events. For 3872773/3874161 co-relation queries the response was YES. Maximal size of possible extension queue 3609. Compared 425978 event pairs, 1442 based on Foata normal form. 589/54201 useless extension candidates. Maximal degree in co-relation 865119. Up to 37559 conditions per place. [2021-03-24 17:50:32,610 INFO L132 encePairwiseOnDemand]: 26/38 looper letters, 5606 selfloop transitions, 728 changer transitions 32/6375 dead transitions. [2021-03-24 17:50:32,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 6375 transitions, 226658 flow [2021-03-24 17:50:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 17:50:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 17:50:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 313 transitions. [2021-03-24 17:50:32,618 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7488038277511961 [2021-03-24 17:50:32,618 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 313 transitions. [2021-03-24 17:50:32,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 313 transitions. [2021-03-24 17:50:32,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:50:32,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 313 transitions. [2021-03-24 17:50:32,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 28.454545454545453) internal successors, (313), 11 states have internal predecessors, (313), 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) [2021-03-24 17:50:32,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 38.0) internal successors, (456), 12 states have internal predecessors, (456), 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) [2021-03-24 17:50:32,619 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 38.0) internal successors, (456), 12 states have internal predecessors, (456), 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) [2021-03-24 17:50:32,619 INFO L185 Difference]: Start difference. First operand has 239 places, 5070 transitions, 168099 flow. Second operand 11 states and 313 transitions. [2021-03-24 17:50:32,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 6375 transitions, 226658 flow [2021-03-24 17:50:51,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 6375 transitions, 226454 flow, removed 102 selfloop flow, removed 0 redundant places. [2021-03-24 17:50:51,564 INFO L241 Difference]: Finished difference. Result has 258 places, 5548 transitions, 189239 flow [2021-03-24 17:50:51,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=167926, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=286, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=189239, PETRI_PLACES=258, PETRI_TRANSITIONS=5548} [2021-03-24 17:50:51,568 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 227 predicate places. [2021-03-24 17:50:51,568 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 5548 transitions, 189239 flow [2021-03-24 17:50:51,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 21.77777777777778) internal successors, (196), 9 states have internal predecessors, (196), 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) [2021-03-24 17:50:51,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:50:51,569 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:50:51,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-03-24 17:50:51,787 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:50:51,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:50:51,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1568956887, now seen corresponding path program 9 times [2021-03-24 17:50:51,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:50:51,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830435628] [2021-03-24 17:50:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:50:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:50:51,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,805 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:50:51,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:50:51,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:50:51,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830435628] [2021-03-24 17:50:51,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078876658] [2021-03-24 17:50:51,825 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:50:51,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-24 17:50:51,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:50:51,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-24 17:50:51,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:50:51,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:50:51,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:50:51,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:50:51,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:50:51,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:50:51,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:50:51,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:50:51,875 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:50:51,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 17:50:51,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:50:51,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:50:51,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:50:51,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,892 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-24 17:50:51,892 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:50:51,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,898 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:50:51,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:50:51,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:50:51,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:50:51,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:50:51,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:50:51,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:50:51,905 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:50:51,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:50:51,914 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:50:51,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:50:51,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:50:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:50:51,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:50:51,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-24 17:50:51,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185855946] [2021-03-24 17:50:51,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 17:50:51,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:50:51,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 17:50:51,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-03-24 17:50:51,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:50:51,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 5548 transitions, 189239 flow. Second operand has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 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) [2021-03-24 17:50:51,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:50:51,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:50:51,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:52:15,852 INFO L129 PetriNetUnfolder]: 41934/64199 cut-off events. [2021-03-24 17:52:15,852 INFO L130 PetriNetUnfolder]: For 5089505/5091052 co-relation queries the response was YES. [2021-03-24 17:52:17,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1078188 conditions, 64199 events. 41934/64199 cut-off events. For 5089505/5091052 co-relation queries the response was YES. Maximal size of possible extension queue 3992. Compared 518781 event pairs, 1060 based on Foata normal form. 1617/65813 useless extension candidates. Maximal degree in co-relation 1073233. Up to 27004 conditions per place. [2021-03-24 17:52:17,662 INFO L132 encePairwiseOnDemand]: 25/38 looper letters, 4091 selfloop transitions, 5080 changer transitions 35/9215 dead transitions. [2021-03-24 17:52:17,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 9215 transitions, 331131 flow [2021-03-24 17:52:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 17:52:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 17:52:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 444 transitions. [2021-03-24 17:52:17,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7789473684210526 [2021-03-24 17:52:17,664 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 444 transitions. [2021-03-24 17:52:17,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 444 transitions. [2021-03-24 17:52:17,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:52:17,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 444 transitions. [2021-03-24 17:52:17,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.6) internal successors, (444), 15 states have internal predecessors, (444), 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) [2021-03-24 17:52:17,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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) [2021-03-24 17:52:17,666 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 38.0) internal successors, (608), 16 states have internal predecessors, (608), 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) [2021-03-24 17:52:17,666 INFO L185 Difference]: Start difference. First operand has 258 places, 5548 transitions, 189239 flow. Second operand 15 states and 444 transitions. [2021-03-24 17:52:17,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 9215 transitions, 331131 flow [2021-03-24 17:52:51,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 9215 transitions, 329344 flow, removed 767 selfloop flow, removed 2 redundant places. [2021-03-24 17:52:51,426 INFO L241 Difference]: Finished difference. Result has 283 places, 7729 transitions, 287636 flow [2021-03-24 17:52:51,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=183885, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2902, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=287636, PETRI_PLACES=283, PETRI_TRANSITIONS=7729} [2021-03-24 17:52:51,431 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 252 predicate places. [2021-03-24 17:52:51,431 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 7729 transitions, 287636 flow [2021-03-24 17:52:51,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 21.6) internal successors, (216), 10 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) [2021-03-24 17:52:51,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:52:51,431 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:52:51,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:52:51,648 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:52:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:52:51,648 INFO L82 PathProgramCache]: Analyzing trace with hash 772842331, now seen corresponding path program 1 times [2021-03-24 17:52:51,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:52:51,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804936207] [2021-03-24 17:52:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:52:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:52:51,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:52:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:52:51,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:52:51,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804936207] [2021-03-24 17:52:51,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837327240] [2021-03-24 17:52:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:52:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:52:51,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-24 17:52:51,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:52:51,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:52:51,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:52:51,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:52:51,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:52:51,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:52:51,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:52:51,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:52:51,730 INFO L142 QuantifierPusher]: treesize reduction 13, result has 50.0 percent of original size [2021-03-24 17:52:51,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 17:52:51,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:52:51,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:52:51,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:52:51,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,749 INFO L147 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size 3 [2021-03-24 17:52:51,749 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:52:51,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-03-24 17:52:51,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:52:51,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:52:51,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:52:51,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:52:51,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:52:51,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:52:51,771 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:52:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:52:51,773 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-24 17:52:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:52:51,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 17:52:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:52:51,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:52:51,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-24 17:52:51,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471690281] [2021-03-24 17:52:51,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 17:52:51,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:52:51,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 17:52:51,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-03-24 17:52:51,784 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-03-24 17:52:51,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 7729 transitions, 287636 flow. Second operand has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 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) [2021-03-24 17:52:51,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:52:51,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-03-24 17:52:51,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 17:55:23,876 INFO L129 PetriNetUnfolder]: 47736/73403 cut-off events. [2021-03-24 17:55:23,876 INFO L130 PetriNetUnfolder]: For 6664884/6666448 co-relation queries the response was YES. [2021-03-24 17:55:25,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1329536 conditions, 73403 events. 47736/73403 cut-off events. For 6664884/6666448 co-relation queries the response was YES. Maximal size of possible extension queue 4389. Compared 605054 event pairs, 1214 based on Foata normal form. 344/73743 useless extension candidates. Maximal degree in co-relation 1323416. Up to 34622 conditions per place. [2021-03-24 17:55:26,261 INFO L132 encePairwiseOnDemand]: 25/38 looper letters, 4622 selfloop transitions, 5711 changer transitions 0/10342 dead transitions. [2021-03-24 17:55:26,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 10342 transitions, 405177 flow [2021-03-24 17:55:26,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 17:55:26,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 17:55:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 357 transitions. [2021-03-24 17:55:26,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7828947368421053 [2021-03-24 17:55:26,262 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 357 transitions. [2021-03-24 17:55:26,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 357 transitions. [2021-03-24 17:55:26,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 17:55:26,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 357 transitions. [2021-03-24 17:55:26,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.75) internal successors, (357), 12 states have internal predecessors, (357), 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) [2021-03-24 17:55:26,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 38.0) internal successors, (494), 13 states have internal predecessors, (494), 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) [2021-03-24 17:55:26,263 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 38.0) internal successors, (494), 13 states have internal predecessors, (494), 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) [2021-03-24 17:55:26,263 INFO L185 Difference]: Start difference. First operand has 283 places, 7729 transitions, 287636 flow. Second operand 12 states and 357 transitions. [2021-03-24 17:55:26,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 10342 transitions, 405177 flow [2021-03-24 17:56:31,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 10342 transitions, 399406 flow, removed 2882 selfloop flow, removed 1 redundant places. [2021-03-24 17:56:31,960 INFO L241 Difference]: Finished difference. Result has 303 places, 9283 transitions, 367636 flow [2021-03-24 17:56:31,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=283365, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=367636, PETRI_PLACES=303, PETRI_TRANSITIONS=9283} [2021-03-24 17:56:31,966 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 272 predicate places. [2021-03-24 17:56:31,966 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 9283 transitions, 367636 flow [2021-03-24 17:56:31,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 21.5) internal successors, (215), 10 states have internal predecessors, (215), 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) [2021-03-24 17:56:31,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 17:56:31,966 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 17:56:32,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-03-24 17:56:32,187 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 17:56:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 17:56:32,187 INFO L82 PathProgramCache]: Analyzing trace with hash -774375751, now seen corresponding path program 5 times [2021-03-24 17:56:32,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 17:56:32,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476669556] [2021-03-24 17:56:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 17:56:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 17:56:32,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,216 INFO L142 QuantifierPusher]: treesize reduction 5, result has 58.3 percent of original size [2021-03-24 17:56:32,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,222 INFO L142 QuantifierPusher]: treesize reduction 36, result has 33.3 percent of original size [2021-03-24 17:56:32,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:56:32,229 INFO L142 QuantifierPusher]: treesize reduction 30, result has 49.2 percent of original size [2021-03-24 17:56:32,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 17:56:32,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,248 INFO L142 QuantifierPusher]: treesize reduction 1, result has 91.7 percent of original size [2021-03-24 17:56:32,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:56:32,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476669556] [2021-03-24 17:56:32,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488532718] [2021-03-24 17:56:32,257 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-24 17:56:32,281 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-24 17:56:32,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-24 17:56:32,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjunts are in the unsatisfiable core [2021-03-24 17:56:32,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-24 17:56:32,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:56:32,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:56:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 17:56:32,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 17:56:32,297 INFO L142 QuantifierPusher]: treesize reduction 13, result has 43.5 percent of original size [2021-03-24 17:56:32,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:56:32,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 17:56:32,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:56:32,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:56:32,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:56:32,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 17:56:32,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:56:32,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:56:32,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 17:56:32,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 17:56:32,304 INFO L142 QuantifierPusher]: treesize reduction 15, result has 44.4 percent of original size [2021-03-24 17:56:32,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 17:56:32,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-24 17:56:32,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:56:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:56:32,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-24 17:56:32,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 17:56:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 17:56:32,323 INFO L142 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-03-24 17:56:32,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 17:56:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 17:56:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 17:56:32,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-24 17:56:32,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-03-24 17:56:32,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333344012] [2021-03-24 17:56:32,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 17:56:32,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 17:56:32,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 17:56:32,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 17:56:32,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2021-03-24 17:56:32,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 9283 transitions, 367636 flow. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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) [2021-03-24 17:56:32,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 17:56:32,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2021-03-24 17:56:32,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-03-24 17:56:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 17:56:33,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-03-24 17:56:33,576 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-24 17:56:33,579 WARN L224 ceAbstractionStarter]: Timeout [2021-03-24 17:56:33,579 INFO L202 PluginConnector]: Adding new model hard1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 05:56:33 BasicIcfg [2021-03-24 17:56:33,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 17:56:33,580 INFO L168 Benchmark]: Toolchain (without parser) took 816355.09 ms. Allocated memory was 255.9 MB in the beginning and 12.5 GB in the end (delta: 12.2 GB). Free memory was 236.6 MB in the beginning and 6.6 GB in the end (delta: -6.4 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.53 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: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 INFO L168 Benchmark]: Boogie Preprocessor took 13.91 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 INFO L168 Benchmark]: RCFGBuilder took 246.09 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 236.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 INFO L168 Benchmark]: TraceAbstraction took 816066.24 ms. Allocated memory was 255.9 MB in the beginning and 12.5 GB in the end (delta: 12.2 GB). Free memory was 236.3 MB in the beginning and 6.6 GB in the end (delta: -6.4 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. [2021-03-24 17:56:33,580 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 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.53 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: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.91 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 246.09 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 236.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 816066.24 ms. Allocated memory was 255.9 MB in the beginning and 12.5 GB in the end (delta: 12.2 GB). Free memory was 236.3 MB in the beginning and 6.6 GB in the end (delta: -6.4 GB). Peak memory consumption was 5.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.6ms, 36 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 22 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 197, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 130, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 197, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 72). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (8states, 18/38 universal loopers) in iteration 29,while PetriNetUnfolder was constructing finite prefix that currently has 2617 conditions, 120 events (45/119 cut-off events. For 31658/32434 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 1166 event pairs, 8 based on Foata normal form. 93/397 useless extension candidates. Maximal degree in co-relation 2478. Up to 53 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 815988.8ms, OverallIterations: 29, TraceHistogramMax: 2, EmptinessCheckTime: 0.0ms, AutomataDifference: 806389.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 154.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 337 SDtfs, 873 SDslu, 453 SDs, 0 SdLazy, 2574 SolverSat, 466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1653.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 623 GetRequests, 410 SyntacticMatches, 37 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1065.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=367636occurred in iteration=28, InterpolantAutomatonStates: 209, 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: 119.6ms SsaConstructionTime, 408.4ms SatisfiabilityAnalysisTime, 2737.7ms InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 939 ConstructedInterpolants, 0 QuantifiedInterpolants, 3532 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1596 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 55 InterpolantComputations, 4 PerfectInterpolantSequences, 42/126 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