/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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/parallel-misc-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:18:14,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:18:14,846 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 [2023-12-09 15:18:14,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:18:14,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:18:14,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:18:14,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:18:14,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:18:14,879 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:18:14,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:18:14,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:18:14,880 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:18:14,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:18:14,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:18:14,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:18:14,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:18:14,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:18:14,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:18:14,882 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:18:14,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:18:14,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:18:14,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:18:14,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:18:14,884 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:18:14,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:18:14,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:18:14,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:18:14,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:18:14,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:18:14,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:18:14,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:18:14,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:18:14,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:18:14,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:18:15,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:18:15,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:18:15,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:18:15,130 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:18:15,132 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:18:15,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-12-09 15:18:16,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:18:16,483 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:18:16,483 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2023-12-09 15:18:16,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a68e08a/b93ef90722234a4498882da0942250ab/FLAG270d565d1 [2023-12-09 15:18:16,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1a68e08a/b93ef90722234a4498882da0942250ab [2023-12-09 15:18:16,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:18:16,504 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:18:16,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:18:16,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:18:16,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:18:16,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2334c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16, skipping insertion in model container [2023-12-09 15:18:16,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:18:16,693 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/parallel-misc-5.wvr.c[3066,3079] [2023-12-09 15:18:16,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:18:16,709 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:18:16,727 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/parallel-misc-5.wvr.c[3066,3079] [2023-12-09 15:18:16,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:18:16,733 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:18:16,733 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:18:16,738 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:18:16,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16 WrapperNode [2023-12-09 15:18:16,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:18:16,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:18:16,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:18:16,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:18:16,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,769 INFO L138 Inliner]: procedures = 22, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 150 [2023-12-09 15:18:16,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:18:16,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:18:16,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:18:16,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:18:16,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:18:16,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:18:16,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:18:16,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:18:16,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (1/1) ... [2023-12-09 15:18:16,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:18:16,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:16,828 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) [2023-12-09 15:18:16,860 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 [2023-12-09 15:18:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:18:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:18:16,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:18:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:18:16,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:18:16,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:18:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:18:16,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:18:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:18:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:18:16,868 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:18:16,949 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:18:16,950 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:18:17,194 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:18:17,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:18:17,254 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-09 15:18:17,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:18:17 BoogieIcfgContainer [2023-12-09 15:18:17,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:18:17,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:18:17,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:18:17,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:18:17,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:18:16" (1/3) ... [2023-12-09 15:18:17,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db5e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:18:17, skipping insertion in model container [2023-12-09 15:18:17,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:18:16" (2/3) ... [2023-12-09 15:18:17,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db5e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:18:17, skipping insertion in model container [2023-12-09 15:18:17,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:18:17" (3/3) ... [2023-12-09 15:18:17,263 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2023-12-09 15:18:17,276 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:18:17,276 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:18:17,276 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:18:17,361 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:18:17,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 114 transitions, 249 flow [2023-12-09 15:18:17,446 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-12-09 15:18:17,446 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:18:17,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 7/111 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2023-12-09 15:18:17,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 114 transitions, 249 flow [2023-12-09 15:18:17,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 100 transitions, 218 flow [2023-12-09 15:18:17,469 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:18:17,474 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;@6d962ea3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:18:17,474 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:18:17,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:18:17,503 INFO L124 PetriNetUnfolderBase]: 7/99 cut-off events. [2023-12-09 15:18:17,504 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:18:17,504 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:17,505 INFO L233 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] [2023-12-09 15:18:17,505 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)] === [2023-12-09 15:18:17,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash 731369165, now seen corresponding path program 1 times [2023-12-09 15:18:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:17,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004394805] [2023-12-09 15:18:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:18,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:18,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004394805] [2023-12-09 15:18:18,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004394805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:18,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:18,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:18:18,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234352663] [2023-12-09 15:18:18,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:18,269 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:18:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:18:18,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:18:18,313 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2023-12-09 15:18:18,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 218 flow. Second operand has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 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) [2023-12-09 15:18:18,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:18,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2023-12-09 15:18:18,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:18,757 INFO L124 PetriNetUnfolderBase]: 299/890 cut-off events. [2023-12-09 15:18:18,758 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-12-09 15:18:18,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 890 events. 299/890 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5566 event pairs, 48 based on Foata normal form. 44/822 useless extension candidates. Maximal degree in co-relation 1313. Up to 193 conditions per place. [2023-12-09 15:18:18,770 INFO L140 encePairwiseOnDemand]: 100/114 looper letters, 48 selfloop transitions, 9 changer transitions 30/156 dead transitions. [2023-12-09 15:18:18,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 156 transitions, 540 flow [2023-12-09 15:18:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:18:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:18:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 840 transitions. [2023-12-09 15:18:18,790 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8187134502923976 [2023-12-09 15:18:18,791 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 840 transitions. [2023-12-09 15:18:18,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 840 transitions. [2023-12-09 15:18:18,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:18,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 840 transitions. [2023-12-09 15:18:18,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.33333333333333) internal successors, (840), 9 states have internal predecessors, (840), 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) [2023-12-09 15:18:18,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:18,808 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:18,812 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 8 predicate places. [2023-12-09 15:18:18,813 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 156 transitions, 540 flow [2023-12-09 15:18:18,813 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 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) [2023-12-09 15:18:18,814 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:18,815 INFO L233 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] [2023-12-09 15:18:18,815 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:18:18,815 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)] === [2023-12-09 15:18:18,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:18,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1267662737, now seen corresponding path program 2 times [2023-12-09 15:18:18,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430982680] [2023-12-09 15:18:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:18,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:19,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:19,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430982680] [2023-12-09 15:18:19,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430982680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:19,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:19,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:18:19,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797743792] [2023-12-09 15:18:19,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:19,083 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:18:19,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:18:19,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:18:19,086 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 114 [2023-12-09 15:18:19,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 156 transitions, 540 flow. Second operand has 7 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 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) [2023-12-09 15:18:19,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:19,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 114 [2023-12-09 15:18:19,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:19,286 INFO L124 PetriNetUnfolderBase]: 372/1034 cut-off events. [2023-12-09 15:18:19,286 INFO L125 PetriNetUnfolderBase]: For 448/529 co-relation queries the response was YES. [2023-12-09 15:18:19,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2237 conditions, 1034 events. 372/1034 cut-off events. For 448/529 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6624 event pairs, 40 based on Foata normal form. 20/942 useless extension candidates. Maximal degree in co-relation 1939. Up to 211 conditions per place. [2023-12-09 15:18:19,297 INFO L140 encePairwiseOnDemand]: 106/114 looper letters, 62 selfloop transitions, 13 changer transitions 43/194 dead transitions. [2023-12-09 15:18:19,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 194 transitions, 921 flow [2023-12-09 15:18:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:18:19,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:18:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 637 transitions. [2023-12-09 15:18:19,300 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7982456140350878 [2023-12-09 15:18:19,300 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 637 transitions. [2023-12-09 15:18:19,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 637 transitions. [2023-12-09 15:18:19,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:19,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 637 transitions. [2023-12-09 15:18:19,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 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) [2023-12-09 15:18:19,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2023-12-09 15:18:19,304 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2023-12-09 15:18:19,305 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 14 predicate places. [2023-12-09 15:18:19,306 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 194 transitions, 921 flow [2023-12-09 15:18:19,306 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 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) [2023-12-09 15:18:19,307 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:19,307 INFO L233 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] [2023-12-09 15:18:19,307 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:18:19,308 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)] === [2023-12-09 15:18:19,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash 222854879, now seen corresponding path program 3 times [2023-12-09 15:18:19,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:19,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664472891] [2023-12-09 15:18:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:19,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:19,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664472891] [2023-12-09 15:18:19,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664472891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:19,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:19,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:18:19,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819515103] [2023-12-09 15:18:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:19,639 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:18:19,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:18:19,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:18:19,645 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2023-12-09 15:18:19,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 194 transitions, 921 flow. Second operand has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 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) [2023-12-09 15:18:19,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:19,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2023-12-09 15:18:19,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:19,908 INFO L124 PetriNetUnfolderBase]: 389/1030 cut-off events. [2023-12-09 15:18:19,909 INFO L125 PetriNetUnfolderBase]: For 750/935 co-relation queries the response was YES. [2023-12-09 15:18:19,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 1030 events. 389/1030 cut-off events. For 750/935 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6585 event pairs, 31 based on Foata normal form. 22/944 useless extension candidates. Maximal degree in co-relation 2649. Up to 216 conditions per place. [2023-12-09 15:18:19,918 INFO L140 encePairwiseOnDemand]: 103/114 looper letters, 55 selfloop transitions, 8 changer transitions 94/228 dead transitions. [2023-12-09 15:18:19,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 228 transitions, 1393 flow [2023-12-09 15:18:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:18:19,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:18:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 814 transitions. [2023-12-09 15:18:19,921 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7933723196881092 [2023-12-09 15:18:19,921 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 814 transitions. [2023-12-09 15:18:19,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 814 transitions. [2023-12-09 15:18:19,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:19,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 814 transitions. [2023-12-09 15:18:19,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 90.44444444444444) internal successors, (814), 9 states have internal predecessors, (814), 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) [2023-12-09 15:18:19,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:19,927 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:19,928 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 22 predicate places. [2023-12-09 15:18:19,929 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 228 transitions, 1393 flow [2023-12-09 15:18:19,929 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.85714285714286) internal successors, (594), 7 states have internal predecessors, (594), 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) [2023-12-09 15:18:19,929 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:19,929 INFO L233 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, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:19,930 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:18:19,930 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)] === [2023-12-09 15:18:19,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:19,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1237194424, now seen corresponding path program 1 times [2023-12-09 15:18:19,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:19,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603958082] [2023-12-09 15:18:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:20,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:20,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603958082] [2023-12-09 15:18:20,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603958082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:20,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:20,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:18:20,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919301217] [2023-12-09 15:18:20,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:20,207 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:18:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:20,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:18:20,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:18:20,211 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 114 [2023-12-09 15:18:20,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 228 transitions, 1393 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2023-12-09 15:18:20,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:20,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 114 [2023-12-09 15:18:20,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:20,597 INFO L124 PetriNetUnfolderBase]: 750/1943 cut-off events. [2023-12-09 15:18:20,597 INFO L125 PetriNetUnfolderBase]: For 2457/3247 co-relation queries the response was YES. [2023-12-09 15:18:20,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6442 conditions, 1943 events. 750/1943 cut-off events. For 2457/3247 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 14408 event pairs, 17 based on Foata normal form. 79/1862 useless extension candidates. Maximal degree in co-relation 6053. Up to 482 conditions per place. [2023-12-09 15:18:20,614 INFO L140 encePairwiseOnDemand]: 105/114 looper letters, 128 selfloop transitions, 38 changer transitions 205/445 dead transitions. [2023-12-09 15:18:20,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 445 transitions, 3752 flow [2023-12-09 15:18:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:18:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:18:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2023-12-09 15:18:20,618 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8664717348927875 [2023-12-09 15:18:20,618 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 889 transitions. [2023-12-09 15:18:20,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 889 transitions. [2023-12-09 15:18:20,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:20,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 889 transitions. [2023-12-09 15:18:20,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.77777777777777) internal successors, (889), 9 states have internal predecessors, (889), 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) [2023-12-09 15:18:20,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:20,624 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 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) [2023-12-09 15:18:20,626 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 30 predicate places. [2023-12-09 15:18:20,626 INFO L500 AbstractCegarLoop]: Abstraction has has 133 places, 445 transitions, 3752 flow [2023-12-09 15:18:20,626 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2023-12-09 15:18:20,626 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:20,627 INFO L233 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, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:20,627 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:18:20,627 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)] === [2023-12-09 15:18:20,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash -59349246, now seen corresponding path program 2 times [2023-12-09 15:18:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:20,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582903498] [2023-12-09 15:18:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:20,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:20,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582903498] [2023-12-09 15:18:20,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582903498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:20,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:20,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:18:20,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072076241] [2023-12-09 15:18:20,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:20,831 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:18:20,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:20,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:18:20,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:18:20,832 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 114 [2023-12-09 15:18:20,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 445 transitions, 3752 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2023-12-09 15:18:20,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:20,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 114 [2023-12-09 15:18:20,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:21,317 INFO L124 PetriNetUnfolderBase]: 1062/2686 cut-off events. [2023-12-09 15:18:21,318 INFO L125 PetriNetUnfolderBase]: For 4988/6489 co-relation queries the response was YES. [2023-12-09 15:18:21,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10581 conditions, 2686 events. 1062/2686 cut-off events. For 4988/6489 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 21507 event pairs, 9 based on Foata normal form. 272/2754 useless extension candidates. Maximal degree in co-relation 10142. Up to 672 conditions per place. [2023-12-09 15:18:21,339 INFO L140 encePairwiseOnDemand]: 105/114 looper letters, 211 selfloop transitions, 78 changer transitions 457/820 dead transitions. [2023-12-09 15:18:21,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 820 transitions, 8552 flow [2023-12-09 15:18:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:18:21,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:18:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 687 transitions. [2023-12-09 15:18:21,342 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8609022556390977 [2023-12-09 15:18:21,342 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 687 transitions. [2023-12-09 15:18:21,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 687 transitions. [2023-12-09 15:18:21,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:21,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 687 transitions. [2023-12-09 15:18:21,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 98.14285714285714) internal successors, (687), 7 states have internal predecessors, (687), 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) [2023-12-09 15:18:21,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2023-12-09 15:18:21,346 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 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) [2023-12-09 15:18:21,347 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 36 predicate places. [2023-12-09 15:18:21,347 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 820 transitions, 8552 flow [2023-12-09 15:18:21,347 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 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) [2023-12-09 15:18:21,347 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:21,347 INFO L233 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, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:21,348 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:18:21,348 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)] === [2023-12-09 15:18:21,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:21,348 INFO L85 PathProgramCache]: Analyzing trace with hash 632872650, now seen corresponding path program 3 times [2023-12-09 15:18:21,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:21,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717978850] [2023-12-09 15:18:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:21,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:21,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:21,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717978850] [2023-12-09 15:18:21,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717978850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:21,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:21,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:18:21,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000792282] [2023-12-09 15:18:21,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:21,470 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:18:21,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:21,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:18:21,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:18:21,471 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 114 [2023-12-09 15:18:21,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 820 transitions, 8552 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2023-12-09 15:18:21,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:21,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 114 [2023-12-09 15:18:21,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:22,068 INFO L124 PetriNetUnfolderBase]: 1284/3393 cut-off events. [2023-12-09 15:18:22,068 INFO L125 PetriNetUnfolderBase]: For 10872/11902 co-relation queries the response was YES. [2023-12-09 15:18:22,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13970 conditions, 3393 events. 1284/3393 cut-off events. For 10872/11902 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 28553 event pairs, 10 based on Foata normal form. 256/3388 useless extension candidates. Maximal degree in co-relation 13286. Up to 831 conditions per place. [2023-12-09 15:18:22,098 INFO L140 encePairwiseOnDemand]: 107/114 looper letters, 151 selfloop transitions, 21 changer transitions 535/921 dead transitions. [2023-12-09 15:18:22,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 921 transitions, 10738 flow [2023-12-09 15:18:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:18:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:18:22,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 483 transitions. [2023-12-09 15:18:22,100 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8473684210526315 [2023-12-09 15:18:22,100 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 483 transitions. [2023-12-09 15:18:22,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 483 transitions. [2023-12-09 15:18:22,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:22,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 483 transitions. [2023-12-09 15:18:22,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 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) [2023-12-09 15:18:22,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2023-12-09 15:18:22,103 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2023-12-09 15:18:22,104 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 40 predicate places. [2023-12-09 15:18:22,104 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 921 transitions, 10738 flow [2023-12-09 15:18:22,104 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2023-12-09 15:18:22,105 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:22,105 INFO L233 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, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:22,105 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:18:22,105 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:18:22,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1393265664, now seen corresponding path program 1 times [2023-12-09 15:18:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:22,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131126271] [2023-12-09 15:18:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:22,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:22,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:22,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131126271] [2023-12-09 15:18:22,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131126271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:18:22,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:18:22,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:18:22,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735750841] [2023-12-09 15:18:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:18:22,215 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:18:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:22,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:18:22,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:18:22,217 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 114 [2023-12-09 15:18:22,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 921 transitions, 10738 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2023-12-09 15:18:22,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:22,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 114 [2023-12-09 15:18:22,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:23,050 INFO L124 PetriNetUnfolderBase]: 1658/4589 cut-off events. [2023-12-09 15:18:23,051 INFO L125 PetriNetUnfolderBase]: For 22811/24313 co-relation queries the response was YES. [2023-12-09 15:18:23,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19466 conditions, 4589 events. 1658/4589 cut-off events. For 22811/24313 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 41140 event pairs, 11 based on Foata normal form. 271/4477 useless extension candidates. Maximal degree in co-relation 18521. Up to 1145 conditions per place. [2023-12-09 15:18:23,087 INFO L140 encePairwiseOnDemand]: 107/114 looper letters, 210 selfloop transitions, 18 changer transitions 646/1088 dead transitions. [2023-12-09 15:18:23,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 1088 transitions, 14326 flow [2023-12-09 15:18:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:18:23,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:18:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 482 transitions. [2023-12-09 15:18:23,090 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8456140350877193 [2023-12-09 15:18:23,090 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 482 transitions. [2023-12-09 15:18:23,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 482 transitions. [2023-12-09 15:18:23,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:23,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 482 transitions. [2023-12-09 15:18:23,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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) [2023-12-09 15:18:23,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2023-12-09 15:18:23,093 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2023-12-09 15:18:23,095 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 44 predicate places. [2023-12-09 15:18:23,095 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 1088 transitions, 14326 flow [2023-12-09 15:18:23,095 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2023-12-09 15:18:23,095 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:23,095 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:23,096 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:18:23,096 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:18:23,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1335057688, now seen corresponding path program 1 times [2023-12-09 15:18:23,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:23,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200698601] [2023-12-09 15:18:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:23,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:23,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200698601] [2023-12-09 15:18:23,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200698601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:23,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317200125] [2023-12-09 15:18:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:23,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:23,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:23,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:18:23,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:18:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:23,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-09 15:18:23,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:23,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:23,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317200125] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:23,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:23,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 14 [2023-12-09 15:18:23,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045680609] [2023-12-09 15:18:23,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:23,786 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-09 15:18:23,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-09 15:18:23,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-09 15:18:23,789 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2023-12-09 15:18:23,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 1088 transitions, 14326 flow. Second operand has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2023-12-09 15:18:23,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:23,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2023-12-09 15:18:23,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:26,076 INFO L124 PetriNetUnfolderBase]: 3471/9464 cut-off events. [2023-12-09 15:18:26,077 INFO L125 PetriNetUnfolderBase]: For 54996/59370 co-relation queries the response was YES. [2023-12-09 15:18:26,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44968 conditions, 9464 events. 3471/9464 cut-off events. For 54996/59370 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 96493 event pairs, 17 based on Foata normal form. 877/9575 useless extension candidates. Maximal degree in co-relation 44330. Up to 3047 conditions per place. [2023-12-09 15:18:26,157 INFO L140 encePairwiseOnDemand]: 98/114 looper letters, 407 selfloop transitions, 179 changer transitions 1641/2337 dead transitions. [2023-12-09 15:18:26,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 2337 transitions, 36657 flow [2023-12-09 15:18:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 15:18:26,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 15:18:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2212 transitions. [2023-12-09 15:18:26,163 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.776140350877193 [2023-12-09 15:18:26,163 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2212 transitions. [2023-12-09 15:18:26,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2212 transitions. [2023-12-09 15:18:26,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:26,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2212 transitions. [2023-12-09 15:18:26,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 88.48) internal successors, (2212), 25 states have internal predecessors, (2212), 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) [2023-12-09 15:18:26,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 114.0) internal successors, (2964), 26 states have internal predecessors, (2964), 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) [2023-12-09 15:18:26,176 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 114.0) internal successors, (2964), 26 states have internal predecessors, (2964), 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) [2023-12-09 15:18:26,178 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 68 predicate places. [2023-12-09 15:18:26,178 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 2337 transitions, 36657 flow [2023-12-09 15:18:26,178 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 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) [2023-12-09 15:18:26,178 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:26,179 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:26,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:18:26,385 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:26,386 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:18:26,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1199760575, now seen corresponding path program 2 times [2023-12-09 15:18:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783164860] [2023-12-09 15:18:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:18:26,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:26,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783164860] [2023-12-09 15:18:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783164860] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:26,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905525800] [2023-12-09 15:18:26,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:18:26,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:26,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:26,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:18:26,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:18:26,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:18:26,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:18:26,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:18:26,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:26,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:18:26,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905525800] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:26,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:26,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 9 [2023-12-09 15:18:26,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16962527] [2023-12-09 15:18:26,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:26,838 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:18:26,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:26,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:18:26,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:18:26,840 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 114 [2023-12-09 15:18:26,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 2337 transitions, 36657 flow. Second operand has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2023-12-09 15:18:26,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:26,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 114 [2023-12-09 15:18:26,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:30,553 INFO L124 PetriNetUnfolderBase]: 6400/17170 cut-off events. [2023-12-09 15:18:30,553 INFO L125 PetriNetUnfolderBase]: For 132956/138684 co-relation queries the response was YES. [2023-12-09 15:18:30,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86833 conditions, 17170 events. 6400/17170 cut-off events. For 132956/138684 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 189946 event pairs, 33 based on Foata normal form. 653/16470 useless extension candidates. Maximal degree in co-relation 85830. Up to 5812 conditions per place. [2023-12-09 15:18:30,703 INFO L140 encePairwiseOnDemand]: 105/114 looper letters, 562 selfloop transitions, 101 changer transitions 2407/3355 dead transitions. [2023-12-09 15:18:30,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 3355 transitions, 60060 flow [2023-12-09 15:18:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:18:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:18:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 765 transitions. [2023-12-09 15:18:30,705 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8388157894736842 [2023-12-09 15:18:30,706 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 765 transitions. [2023-12-09 15:18:30,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 765 transitions. [2023-12-09 15:18:30,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:30,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 765 transitions. [2023-12-09 15:18:30,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.625) internal successors, (765), 8 states have internal predecessors, (765), 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) [2023-12-09 15:18:30,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2023-12-09 15:18:30,710 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 114.0) internal successors, (1026), 9 states have internal predecessors, (1026), 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) [2023-12-09 15:18:30,711 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 75 predicate places. [2023-12-09 15:18:30,711 INFO L500 AbstractCegarLoop]: Abstraction has has 178 places, 3355 transitions, 60060 flow [2023-12-09 15:18:30,711 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 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) [2023-12-09 15:18:30,711 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:30,712 INFO L233 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:30,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:18:30,919 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-09 15:18:30,919 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:18:30,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1976445921, now seen corresponding path program 1 times [2023-12-09 15:18:30,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:30,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54704561] [2023-12-09 15:18:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-09 15:18:31,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:31,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54704561] [2023-12-09 15:18:31,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54704561] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:31,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848980489] [2023-12-09 15:18:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:31,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:31,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:31,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:18:31,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:18:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:31,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-09 15:18:31,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:18:31,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-09 15:18:31,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848980489] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:31,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:31,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 17 [2023-12-09 15:18:31,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095760013] [2023-12-09 15:18:31,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:31,628 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-09 15:18:31,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:31,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-09 15:18:31,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-12-09 15:18:31,631 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 114 [2023-12-09 15:18:31,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 3355 transitions, 60060 flow. Second operand has 17 states, 17 states have (on average 83.88235294117646) internal successors, (1426), 17 states have internal predecessors, (1426), 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) [2023-12-09 15:18:31,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:31,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 114 [2023-12-09 15:18:31,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:18:47,966 INFO L124 PetriNetUnfolderBase]: 17622/46587 cut-off events. [2023-12-09 15:18:47,966 INFO L125 PetriNetUnfolderBase]: For 441363/468442 co-relation queries the response was YES. [2023-12-09 15:18:48,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262568 conditions, 46587 events. 17622/46587 cut-off events. For 441363/468442 co-relation queries the response was YES. Maximal size of possible extension queue 1894. Compared 579389 event pairs, 127 based on Foata normal form. 3266/46280 useless extension candidates. Maximal degree in co-relation 261122. Up to 18266 conditions per place. [2023-12-09 15:18:48,391 INFO L140 encePairwiseOnDemand]: 97/114 looper letters, 1348 selfloop transitions, 345 changer transitions 7694/9511 dead transitions. [2023-12-09 15:18:48,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 9511 transitions, 186227 flow [2023-12-09 15:18:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:18:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:18:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3172 transitions. [2023-12-09 15:18:48,402 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7729044834307992 [2023-12-09 15:18:48,402 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3172 transitions. [2023-12-09 15:18:48,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3172 transitions. [2023-12-09 15:18:48,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:18:48,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3172 transitions. [2023-12-09 15:18:48,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 88.11111111111111) internal successors, (3172), 36 states have internal predecessors, (3172), 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) [2023-12-09 15:18:48,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 114.0) internal successors, (4218), 37 states have internal predecessors, (4218), 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) [2023-12-09 15:18:48,418 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 114.0) internal successors, (4218), 37 states have internal predecessors, (4218), 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) [2023-12-09 15:18:48,419 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 110 predicate places. [2023-12-09 15:18:48,419 INFO L500 AbstractCegarLoop]: Abstraction has has 213 places, 9511 transitions, 186227 flow [2023-12-09 15:18:48,420 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 83.88235294117646) internal successors, (1426), 17 states have internal predecessors, (1426), 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) [2023-12-09 15:18:48,420 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:18:48,420 INFO L233 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:18:48,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:18:48,625 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:48,626 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:18:48,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:18:48,626 INFO L85 PathProgramCache]: Analyzing trace with hash -188072683, now seen corresponding path program 3 times [2023-12-09 15:18:48,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:18:48,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475802477] [2023-12-09 15:18:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:18:48,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:18:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:18:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:18:49,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:18:49,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475802477] [2023-12-09 15:18:49,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475802477] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:18:49,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292307571] [2023-12-09 15:18:49,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:18:49,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:18:49,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:18:49,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:18:49,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:18:49,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-09 15:18:49,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:18:49,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-09 15:18:49,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:18:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:18:49,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:18:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:18:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292307571] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:18:49,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:18:49,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 15 [2023-12-09 15:18:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508821143] [2023-12-09 15:18:49,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:18:49,411 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-09 15:18:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:18:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-09 15:18:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-12-09 15:18:49,412 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 114 [2023-12-09 15:18:49,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 9511 transitions, 186227 flow. Second operand has 15 states, 15 states have (on average 83.46666666666667) internal successors, (1252), 15 states have internal predecessors, (1252), 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) [2023-12-09 15:18:49,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:18:49,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 114 [2023-12-09 15:18:49,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:20:24,730 INFO L124 PetriNetUnfolderBase]: 28924/75055 cut-off events. [2023-12-09 15:20:24,731 INFO L125 PetriNetUnfolderBase]: For 805189/859502 co-relation queries the response was YES. [2023-12-09 15:20:25,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475973 conditions, 75055 events. 28924/75055 cut-off events. For 805189/859502 co-relation queries the response was YES. Maximal size of possible extension queue 2887. Compared 972912 event pairs, 96 based on Foata normal form. 6330/76180 useless extension candidates. Maximal degree in co-relation 471601. Up to 31863 conditions per place. [2023-12-09 15:20:25,331 INFO L140 encePairwiseOnDemand]: 95/114 looper letters, 1606 selfloop transitions, 926 changer transitions 14283/16882 dead transitions. [2023-12-09 15:20:25,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 16882 transitions, 357851 flow [2023-12-09 15:20:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-09 15:20:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-12-09 15:20:25,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3951 transitions. [2023-12-09 15:20:25,337 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7701754385964912 [2023-12-09 15:20:25,337 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3951 transitions. [2023-12-09 15:20:25,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3951 transitions. [2023-12-09 15:20:25,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:20:25,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3951 transitions. [2023-12-09 15:20:25,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 87.8) internal successors, (3951), 45 states have internal predecessors, (3951), 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) [2023-12-09 15:20:25,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 114.0) internal successors, (5244), 46 states have internal predecessors, (5244), 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) [2023-12-09 15:20:25,353 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 114.0) internal successors, (5244), 46 states have internal predecessors, (5244), 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) [2023-12-09 15:20:25,353 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 154 predicate places. [2023-12-09 15:20:25,353 INFO L500 AbstractCegarLoop]: Abstraction has has 257 places, 16882 transitions, 357851 flow [2023-12-09 15:20:25,354 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 83.46666666666667) internal successors, (1252), 15 states have internal predecessors, (1252), 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) [2023-12-09 15:20:25,354 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:20:25,354 INFO L233 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:20:25,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:20:25,560 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:20:25,560 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 15:20:25,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:20:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2056486572, now seen corresponding path program 4 times [2023-12-09 15:20:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:20:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826357885] [2023-12-09 15:20:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:20:25,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:20:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:20:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-09 15:20:25,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:20:25,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826357885] [2023-12-09 15:20:25,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826357885] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:20:25,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551179392] [2023-12-09 15:20:25,716 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:20:25,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:20:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:20:25,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:20:25,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:20:25,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:20:25,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:20:25,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-09 15:20:25,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:20:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:20:25,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:20:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-09 15:20:25,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551179392] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:20:25,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:20:25,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 10 [2023-12-09 15:20:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987097270] [2023-12-09 15:20:25,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:20:25,989 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:20:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:20:25,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:20:25,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:20:25,990 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 114 [2023-12-09 15:20:25,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 16882 transitions, 357851 flow. Second operand has 10 states, 10 states have (on average 93.8) internal successors, (938), 10 states have internal predecessors, (938), 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) [2023-12-09 15:20:25,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:20:25,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 114 [2023-12-09 15:20:25,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:22:36,132 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:22:36,132 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:22:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:22:36,352 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:22:36,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-09 15:22:36,552 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-09 15:22:36,553 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 91/114 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 350196 conditions, 52388 events (19559/52387 cut-off events. For 632525/657464 co-relation queries the response was YES. Maximal size of possible extension queue 3868. Compared 735493 event pairs, 76 based on Foata normal form. 913/53575 useless extension candidates. Maximal degree in co-relation 350017. Up to 20633 conditions per place.). [2023-12-09 15:22:36,555 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:22:36,555 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:22:36,555 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:22:36,555 INFO L457 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1, 1] [2023-12-09 15:22:36,559 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:22:36,559 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:22:36,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:22:36 BasicIcfg [2023-12-09 15:22:36,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:22:36,563 INFO L158 Benchmark]: Toolchain (without parser) took 260059.18ms. Allocated memory was 191.9MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 145.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.3GB. Max. memory is 8.0GB. [2023-12-09 15:22:36,564 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:22:36,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.29ms. Allocated memory is still 191.9MB. Free memory was 145.2MB in the beginning and 133.5MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:22:36,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.97ms. Allocated memory is still 191.9MB. Free memory was 133.5MB in the beginning and 131.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:22:36,564 INFO L158 Benchmark]: Boogie Preprocessor took 25.55ms. Allocated memory is still 191.9MB. Free memory was 131.6MB in the beginning and 130.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:22:36,565 INFO L158 Benchmark]: RCFGBuilder took 459.47ms. Allocated memory is still 191.9MB. Free memory was 130.2MB in the beginning and 109.9MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 15:22:36,565 INFO L158 Benchmark]: TraceAbstraction took 259305.11ms. Allocated memory was 191.9MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 109.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2023-12-09 15:22:36,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.29ms. Allocated memory is still 191.9MB. Free memory was 145.2MB in the beginning and 133.5MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.97ms. Allocated memory is still 191.9MB. Free memory was 133.5MB in the beginning and 131.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.55ms. Allocated memory is still 191.9MB. Free memory was 131.6MB in the beginning and 130.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 459.47ms. Allocated memory is still 191.9MB. Free memory was 130.2MB in the beginning and 109.9MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 259305.11ms. Allocated memory was 191.9MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 109.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 91/114 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 350196 conditions, 52388 events (19559/52387 cut-off events. For 632525/657464 co-relation queries the response was YES. Maximal size of possible extension queue 3868. Compared 735493 event pairs, 76 based on Foata normal form. 913/53575 useless extension candidates. Maximal degree in co-relation 350017. Up to 20633 conditions per place.). - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 91/114 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 350196 conditions, 52388 events (19559/52387 cut-off events. For 632525/657464 co-relation queries the response was YES. Maximal size of possible extension queue 3868. Compared 735493 event pairs, 76 based on Foata normal form. 913/53575 useless extension candidates. Maximal degree in co-relation 350017. Up to 20633 conditions per place.). - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 91/114 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 350196 conditions, 52388 events (19559/52387 cut-off events. For 632525/657464 co-relation queries the response was YES. Maximal size of possible extension queue 3868. Compared 735493 event pairs, 76 based on Foata normal form. 913/53575 useless extension candidates. Maximal degree in co-relation 350017. Up to 20633 conditions per place.). - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (10states, 91/114 universal loopers) in iteration 12,while PetriNetUnfolder was constructing finite prefix that currently has 350196 conditions, 52388 events (19559/52387 cut-off events. For 632525/657464 co-relation queries the response was YES. Maximal size of possible extension queue 3868. Compared 735493 event pairs, 76 based on Foata normal form. 913/53575 useless extension candidates. Maximal degree in co-relation 350017. Up to 20633 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 142 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: 259.2s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 252.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1041 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1041 mSDsluCounter, 902 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 697 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2707 IncrementalHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 205 mSDtfsCounter, 2707 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1168 GetRequests, 968 SyntacticMatches, 14 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1377 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=357851occurred in iteration=11, InterpolantAutomatonStates: 165, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1554 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2024 ConstructedInterpolants, 0 QuantifiedInterpolants, 4669 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1280 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 244/379 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