/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 21:09:41,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 21:09:41,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 21:09:41,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 21:09:41,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 21:09:41,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 21:09:41,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 21:09:41,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 21:09:41,902 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 21:09:41,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 21:09:41,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 21:09:41,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 21:09:41,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 21:09:41,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 21:09:41,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 21:09:41,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 21:09:41,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 21:09:41,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 21:09:41,908 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 21:09:41,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 21:09:41,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 21:09:41,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 21:09:41,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 21:09:41,909 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 21:09:41,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 21:09:41,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:09:41,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 21:09:41,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 21:09:41,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 21:09:41,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 21:09:41,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 21:09:41,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 21:09:41,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 21:09:41,912 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 21:09:42,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 21:09:42,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 21:09:42,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 21:09:42,153 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 21:09:42,154 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 21:09:42,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-11-29 21:09:43,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 21:09:43,342 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 21:09:43,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-11-29 21:09:43,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e43ab5d6/33b4529b815e4ab7b72cef301d44b3a9/FLAG4d0a6f7a0 [2023-11-29 21:09:43,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e43ab5d6/33b4529b815e4ab7b72cef301d44b3a9 [2023-11-29 21:09:43,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 21:09:43,361 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 21:09:43,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 21:09:43,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 21:09:43,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 21:09:43,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc4388a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43, skipping insertion in model container [2023-11-29 21:09:43,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,387 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 21:09:43,518 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2372,2385] [2023-11-29 21:09:43,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:09:43,537 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 21:09:43,553 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2372,2385] [2023-11-29 21:09:43,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 21:09:43,565 INFO L206 MainTranslator]: Completed translation [2023-11-29 21:09:43,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43 WrapperNode [2023-11-29 21:09:43,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 21:09:43,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 21:09:43,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 21:09:43,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 21:09:43,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,591 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-29 21:09:43,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 21:09:43,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 21:09:43,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 21:09:43,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 21:09:43,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 21:09:43,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 21:09:43,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 21:09:43,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 21:09:43,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (1/1) ... [2023-11-29 21:09:43,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 21:09:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 21:09:43,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 21:09:43,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 21:09:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 21:09:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 21:09:43,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 21:09:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 21:09:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 21:09:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 21:09:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 21:09:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 21:09:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 21:09:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 21:09:43,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 21:09:43,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 21:09:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 21:09:43,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 21:09:43,675 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 21:09:43,800 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 21:09:43,802 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 21:09:44,049 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 21:09:44,059 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 21:09:44,059 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 21:09:44,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:09:44 BoogieIcfgContainer [2023-11-29 21:09:44,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 21:09:44,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 21:09:44,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 21:09:44,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 21:09:44,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:09:43" (1/3) ... [2023-11-29 21:09:44,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5b36fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:09:44, skipping insertion in model container [2023-11-29 21:09:44,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:09:43" (2/3) ... [2023-11-29 21:09:44,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5b36fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:09:44, skipping insertion in model container [2023-11-29 21:09:44,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:09:44" (3/3) ... [2023-11-29 21:09:44,071 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2023-11-29 21:09:44,085 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 21:09:44,086 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 21:09:44,086 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 21:09:44,142 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 21:09:44,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 213 flow [2023-11-29 21:09:44,208 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-11-29 21:09:44,208 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 21:09:44,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 93 events. 2/93 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-11-29 21:09:44,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 213 flow [2023-11-29 21:09:44,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 82 transitions, 182 flow [2023-11-29 21:09:44,223 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 21:09:44,228 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@198c0c86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 21:09:44,228 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 21:09:44,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 21:09:44,256 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2023-11-29 21:09:44,256 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 21:09:44,257 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:44,257 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:44,258 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:44,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash 360440589, now seen corresponding path program 1 times [2023-11-29 21:09:44,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:44,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400947340] [2023-11-29 21:09:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:44,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400947340] [2023-11-29 21:09:47,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400947340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:47,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:47,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63855978] [2023-11-29 21:09:47,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:47,129 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:47,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:47,162 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:47,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 182 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:47,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:47,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:47,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:09:48,421 INFO L124 PetriNetUnfolderBase]: 13/180 cut-off events. [2023-11-29 21:09:48,421 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-11-29 21:09:48,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 180 events. 13/180 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 481 event pairs, 7 based on Foata normal form. 6/177 useless extension candidates. Maximal degree in co-relation 125. Up to 30 conditions per place. [2023-11-29 21:09:48,424 INFO L140 encePairwiseOnDemand]: 83/96 looper letters, 47 selfloop transitions, 2 changer transitions 19/116 dead transitions. [2023-11-29 21:09:48,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 116 transitions, 410 flow [2023-11-29 21:09:48,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:09:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:09:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 868 transitions. [2023-11-29 21:09:48,441 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6955128205128205 [2023-11-29 21:09:48,442 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 868 transitions. [2023-11-29 21:09:48,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 868 transitions. [2023-11-29 21:09:48,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:09:48,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 868 transitions. [2023-11-29 21:09:48,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.76923076923077) internal successors, (868), 13 states have internal predecessors, (868), 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) [2023-11-29 21:09:48,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:48,460 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:48,464 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2023-11-29 21:09:48,464 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 116 transitions, 410 flow [2023-11-29 21:09:48,465 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:48,465 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:48,465 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:48,465 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 21:09:48,466 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:48,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:48,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1172807019, now seen corresponding path program 2 times [2023-11-29 21:09:48,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:48,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245348546] [2023-11-29 21:09:48,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:48,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:50,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:50,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:50,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245348546] [2023-11-29 21:09:50,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245348546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:50,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:50,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:50,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144115015] [2023-11-29 21:09:50,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:50,043 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:50,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:50,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:50,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:50,045 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:50,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 116 transitions, 410 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:50,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:50,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:50,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:09:50,789 INFO L124 PetriNetUnfolderBase]: 14/223 cut-off events. [2023-11-29 21:09:50,789 INFO L125 PetriNetUnfolderBase]: For 137/155 co-relation queries the response was YES. [2023-11-29 21:09:50,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 223 events. 14/223 cut-off events. For 137/155 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 744 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 150. Up to 47 conditions per place. [2023-11-29 21:09:50,791 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 49 selfloop transitions, 3 changer transitions 39/139 dead transitions. [2023-11-29 21:09:50,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 139 transitions, 708 flow [2023-11-29 21:09:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:09:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:09:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 863 transitions. [2023-11-29 21:09:50,794 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6915064102564102 [2023-11-29 21:09:50,794 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 863 transitions. [2023-11-29 21:09:50,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 863 transitions. [2023-11-29 21:09:50,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:09:50,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 863 transitions. [2023-11-29 21:09:50,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.38461538461539) internal successors, (863), 13 states have internal predecessors, (863), 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) [2023-11-29 21:09:50,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:50,799 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:50,800 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 24 predicate places. [2023-11-29 21:09:50,800 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 139 transitions, 708 flow [2023-11-29 21:09:50,801 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:50,801 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:50,801 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:50,801 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 21:09:50,801 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:50,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1164978029, now seen corresponding path program 3 times [2023-11-29 21:09:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897040693] [2023-11-29 21:09:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:52,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:52,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897040693] [2023-11-29 21:09:52,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897040693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:52,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157249616] [2023-11-29 21:09:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:52,078 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:52,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:52,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:52,081 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:52,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 139 transitions, 708 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:52,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:52,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:52,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:09:52,919 INFO L124 PetriNetUnfolderBase]: 13/268 cut-off events. [2023-11-29 21:09:52,919 INFO L125 PetriNetUnfolderBase]: For 290/340 co-relation queries the response was YES. [2023-11-29 21:09:52,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 268 events. 13/268 cut-off events. For 290/340 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1137 event pairs, 1 based on Foata normal form. 7/264 useless extension candidates. Maximal degree in co-relation 261. Up to 65 conditions per place. [2023-11-29 21:09:52,921 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 63 selfloop transitions, 3 changer transitions 57/171 dead transitions. [2023-11-29 21:09:52,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 171 transitions, 1164 flow [2023-11-29 21:09:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:09:52,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:09:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 862 transitions. [2023-11-29 21:09:52,923 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6907051282051282 [2023-11-29 21:09:52,924 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 862 transitions. [2023-11-29 21:09:52,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 862 transitions. [2023-11-29 21:09:52,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:09:52,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 862 transitions. [2023-11-29 21:09:52,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.3076923076923) internal successors, (862), 13 states have internal predecessors, (862), 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) [2023-11-29 21:09:52,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:52,928 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:52,929 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 36 predicate places. [2023-11-29 21:09:52,929 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 171 transitions, 1164 flow [2023-11-29 21:09:52,930 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:52,930 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:52,930 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:52,930 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 21:09:52,930 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:52,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash -281063767, now seen corresponding path program 4 times [2023-11-29 21:09:52,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:52,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354813664] [2023-11-29 21:09:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:54,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:54,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354813664] [2023-11-29 21:09:54,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354813664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:54,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:54,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:54,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019456642] [2023-11-29 21:09:54,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:54,362 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:54,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:54,366 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:54,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 171 transitions, 1164 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:54,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:54,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:54,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:09:55,265 INFO L124 PetriNetUnfolderBase]: 13/264 cut-off events. [2023-11-29 21:09:55,266 INFO L125 PetriNetUnfolderBase]: For 455/526 co-relation queries the response was YES. [2023-11-29 21:09:55,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 264 events. 13/264 cut-off events. For 455/526 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1115 event pairs, 0 based on Foata normal form. 8/264 useless extension candidates. Maximal degree in co-relation 303. Up to 65 conditions per place. [2023-11-29 21:09:55,267 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 47 selfloop transitions, 3 changer transitions 79/177 dead transitions. [2023-11-29 21:09:55,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 177 transitions, 1485 flow [2023-11-29 21:09:55,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:09:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:09:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 863 transitions. [2023-11-29 21:09:55,270 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6915064102564102 [2023-11-29 21:09:55,270 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 863 transitions. [2023-11-29 21:09:55,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 863 transitions. [2023-11-29 21:09:55,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:09:55,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 863 transitions. [2023-11-29 21:09:55,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.38461538461539) internal successors, (863), 13 states have internal predecessors, (863), 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) [2023-11-29 21:09:55,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:55,276 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:55,278 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 48 predicate places. [2023-11-29 21:09:55,279 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 177 transitions, 1485 flow [2023-11-29 21:09:55,280 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:55,281 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:55,281 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:55,281 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 21:09:55,281 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:55,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:55,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2090813867, now seen corresponding path program 5 times [2023-11-29 21:09:55,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:55,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474231294] [2023-11-29 21:09:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:55,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:56,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:56,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474231294] [2023-11-29 21:09:56,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474231294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:56,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:56,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:56,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315379966] [2023-11-29 21:09:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:56,841 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:56,843 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:56,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 177 transitions, 1485 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:56,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:56,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:56,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:09:57,955 INFO L124 PetriNetUnfolderBase]: 13/264 cut-off events. [2023-11-29 21:09:57,955 INFO L125 PetriNetUnfolderBase]: For 755/854 co-relation queries the response was YES. [2023-11-29 21:09:57,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 264 events. 13/264 cut-off events. For 755/854 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1089 event pairs, 0 based on Foata normal form. 11/268 useless extension candidates. Maximal degree in co-relation 342. Up to 62 conditions per place. [2023-11-29 21:09:57,957 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 30 selfloop transitions, 1 changer transitions 95/174 dead transitions. [2023-11-29 21:09:57,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 174 transitions, 1707 flow [2023-11-29 21:09:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:09:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:09:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 859 transitions. [2023-11-29 21:09:57,960 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.688301282051282 [2023-11-29 21:09:57,961 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 859 transitions. [2023-11-29 21:09:57,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 859 transitions. [2023-11-29 21:09:57,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:09:57,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 859 transitions. [2023-11-29 21:09:57,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.07692307692308) internal successors, (859), 13 states have internal predecessors, (859), 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) [2023-11-29 21:09:57,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:57,966 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:09:57,968 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 60 predicate places. [2023-11-29 21:09:57,968 INFO L500 AbstractCegarLoop]: Abstraction has has 150 places, 174 transitions, 1707 flow [2023-11-29 21:09:57,968 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:57,968 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 21:09:57,968 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 21:09:57,968 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 21:09:57,969 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 21:09:57,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 21:09:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash -40053013, now seen corresponding path program 6 times [2023-11-29 21:09:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 21:09:57,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458628880] [2023-11-29 21:09:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 21:09:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 21:09:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 21:09:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 21:09:59,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 21:09:59,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458628880] [2023-11-29 21:09:59,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458628880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 21:09:59,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 21:09:59,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 21:09:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785404576] [2023-11-29 21:09:59,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 21:09:59,383 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 21:09:59,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 21:09:59,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 21:09:59,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 21:09:59,385 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-11-29 21:09:59,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 174 transitions, 1707 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:09:59,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 21:09:59,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-11-29 21:09:59,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 21:10:00,134 INFO L124 PetriNetUnfolderBase]: 13/262 cut-off events. [2023-11-29 21:10:00,134 INFO L125 PetriNetUnfolderBase]: For 1099/1250 co-relation queries the response was YES. [2023-11-29 21:10:00,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 262 events. 13/262 cut-off events. For 1099/1250 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1094 event pairs, 0 based on Foata normal form. 10/266 useless extension candidates. Maximal degree in co-relation 385. Up to 59 conditions per place. [2023-11-29 21:10:00,136 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 0 selfloop transitions, 0 changer transitions 170/170 dead transitions. [2023-11-29 21:10:00,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 170 transitions, 1915 flow [2023-11-29 21:10:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 21:10:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 21:10:00,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 856 transitions. [2023-11-29 21:10:00,139 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2023-11-29 21:10:00,139 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 856 transitions. [2023-11-29 21:10:00,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 856 transitions. [2023-11-29 21:10:00,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 21:10:00,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 856 transitions. [2023-11-29 21:10:00,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 65.84615384615384) internal successors, (856), 13 states have internal predecessors, (856), 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) [2023-11-29 21:10:00,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:10:00,144 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 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) [2023-11-29 21:10:00,144 INFO L307 CegarLoopForPetriNet]: 90 programPoint places, 68 predicate places. [2023-11-29 21:10:00,145 INFO L500 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 1915 flow [2023-11-29 21:10:00,145 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 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) [2023-11-29 21:10:00,150 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-sre-subst.wvr.c_BEv2_AllErrorsAtOnce [2023-11-29 21:10:00,231 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 21:10:00,232 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 21:10:00,232 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 21:10:00,232 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 21:10:00,232 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 21:10:00,232 INFO L457 BasicCegarLoop]: Path program histogram: [6] [2023-11-29 21:10:00,236 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 21:10:00,236 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 21:10:00,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:10:00 BasicIcfg [2023-11-29 21:10:00,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 21:10:00,246 INFO L158 Benchmark]: Toolchain (without parser) took 16880.81ms. Allocated memory was 356.5MB in the beginning and 966.8MB in the end (delta: 610.3MB). Free memory was 299.4MB in the beginning and 689.5MB in the end (delta: -390.1MB). Peak memory consumption was 217.1MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,246 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 308.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 21:10:00,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 356.5MB. Free memory was 299.4MB in the beginning and 288.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.81ms. Allocated memory is still 356.5MB. Free memory was 288.2MB in the beginning and 286.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,246 INFO L158 Benchmark]: Boogie Preprocessor took 18.05ms. Allocated memory is still 356.5MB. Free memory was 286.2MB in the beginning and 285.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,247 INFO L158 Benchmark]: RCFGBuilder took 452.56ms. Allocated memory was 356.5MB in the beginning and 557.8MB in the end (delta: 201.3MB). Free memory was 285.0MB in the beginning and 525.1MB in the end (delta: -240.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,247 INFO L158 Benchmark]: TraceAbstraction took 16175.87ms. Allocated memory was 557.8MB in the beginning and 966.8MB in the end (delta: 408.9MB). Free memory was 524.3MB in the beginning and 689.5MB in the end (delta: -165.2MB). Peak memory consumption was 239.1MB. Max. memory is 16.0GB. [2023-11-29 21:10:00,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 308.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 201.81ms. Allocated memory is still 356.5MB. Free memory was 299.4MB in the beginning and 288.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.81ms. Allocated memory is still 356.5MB. Free memory was 288.2MB in the beginning and 286.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.05ms. Allocated memory is still 356.5MB. Free memory was 286.2MB in the beginning and 285.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 452.56ms. Allocated memory was 356.5MB in the beginning and 557.8MB in the end (delta: 201.3MB). Free memory was 285.0MB in the beginning and 525.1MB in the end (delta: -240.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.0GB. * TraceAbstraction took 16175.87ms. Allocated memory was 557.8MB in the beginning and 966.8MB in the end (delta: 408.9MB). Free memory was 524.3MB in the beginning and 689.5MB in the end (delta: -165.2MB). Peak memory consumption was 239.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 77]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 864 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1192 IncrementalHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 182 mSDtfsCounter, 1192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=6, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 9202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 21:10:00,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...