/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 12:14:25,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 12:14:25,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-10 12:14:25,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 12:14:25,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 12:14:25,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 12:14:25,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 12:14:25,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 12:14:25,223 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 12:14:25,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 12:14:25,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 12:14:25,225 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 12:14:25,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 12:14:25,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 12:14:25,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 12:14:25,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 12:14:25,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 12:14:25,228 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 12:14:25,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 12:14:25,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:14:25,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 12:14:25,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 12:14:25,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 12:14:25,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 12:14:25,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 12:14:25,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 12:14:25,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 12:14:25,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 12:14:25,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 12:14:25,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 12:14:25,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 12:14:25,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 12:14:25,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 12:14:25,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2023-11-10 12:14:26,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 12:14:26,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 12:14:26,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2023-11-10 12:14:26,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710e95fc5/3dbf83f51b504b1b8525af20e5a5ea81/FLAG52a884652 [2023-11-10 12:14:26,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710e95fc5/3dbf83f51b504b1b8525af20e5a5ea81 [2023-11-10 12:14:26,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 12:14:26,557 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 12:14:26,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 12:14:26,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 12:14:26,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 12:14:26,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1707340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26, skipping insertion in model container [2023-11-10 12:14:26,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,585 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 12:14:26,733 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2023-11-10 12:14:26,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:14:26,746 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 12:14:26,775 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2023-11-10 12:14:26,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 12:14:26,790 INFO L206 MainTranslator]: Completed translation [2023-11-10 12:14:26,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26 WrapperNode [2023-11-10 12:14:26,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 12:14:26,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 12:14:26,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 12:14:26,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 12:14:26,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,833 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 316 [2023-11-10 12:14:26,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 12:14:26,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 12:14:26,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 12:14:26,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 12:14:26,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 12:14:26,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 12:14:26,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 12:14:26,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 12:14:26,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (1/1) ... [2023-11-10 12:14:26,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 12:14:26,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:14:26,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-10 12:14:26,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-10 12:14:26,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-10 12:14:26,922 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-10 12:14:26,922 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-10 12:14:26,922 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 12:14:26,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-10 12:14:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 12:14:26,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 12:14:26,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 12:14:26,924 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 12:14:27,012 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 12:14:27,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 12:14:27,367 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 12:14:27,379 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 12:14:27,380 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-10 12:14:27,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:14:27 BoogieIcfgContainer [2023-11-10 12:14:27,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 12:14:27,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 12:14:27,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 12:14:27,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 12:14:27,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:14:26" (1/3) ... [2023-11-10 12:14:27,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635313f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:14:27, skipping insertion in model container [2023-11-10 12:14:27,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:14:26" (2/3) ... [2023-11-10 12:14:27,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635313f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:14:27, skipping insertion in model container [2023-11-10 12:14:27,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:14:27" (3/3) ... [2023-11-10 12:14:27,396 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-11-10 12:14:27,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 12:14:27,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 12:14:27,409 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 12:14:27,528 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-10 12:14:27,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 391 transitions, 803 flow [2023-11-10 12:14:27,701 INFO L124 PetriNetUnfolderBase]: 26/388 cut-off events. [2023-11-10 12:14:27,701 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-10 12:14:27,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 388 events. 26/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 910 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 289. Up to 2 conditions per place. [2023-11-10 12:14:27,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 391 transitions, 803 flow [2023-11-10 12:14:27,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 361 places, 377 transitions, 772 flow [2023-11-10 12:14:27,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 12:14:27,738 INFO L357 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=false, 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;@b5d9f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 12:14:27,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-10 12:14:27,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 12:14:27,796 INFO L124 PetriNetUnfolderBase]: 26/376 cut-off events. [2023-11-10 12:14:27,796 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-10 12:14:27,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:14:27,797 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:14:27,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-10 12:14:27,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:14:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1312031764, now seen corresponding path program 1 times [2023-11-10 12:14:27,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:14:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717942662] [2023-11-10 12:14:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:27,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:14:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:14:28,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:14:28,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717942662] [2023-11-10 12:14:28,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717942662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:14:28,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:14:28,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-10 12:14:28,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960577077] [2023-11-10 12:14:28,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:14:28,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-10 12:14:28,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:14:28,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-10 12:14:28,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-10 12:14:28,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 391 [2023-11-10 12:14:28,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 377 transitions, 772 flow. Second operand has 2 states, 2 states have (on average 369.5) internal successors, (739), 2 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:14:28,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 391 [2023-11-10 12:14:28,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:14:28,250 INFO L124 PetriNetUnfolderBase]: 7/358 cut-off events. [2023-11-10 12:14:28,250 INFO L125 PetriNetUnfolderBase]: For 14/16 co-relation queries the response was YES. [2023-11-10 12:14:28,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 358 events. 7/358 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 860 event pairs, 0 based on Foata normal form. 38/374 useless extension candidates. Maximal degree in co-relation 278. Up to 7 conditions per place. [2023-11-10 12:14:28,256 INFO L140 encePairwiseOnDemand]: 372/391 looper letters, 6 selfloop transitions, 0 changer transitions 3/358 dead transitions. [2023-11-10 12:14:28,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 358 transitions, 746 flow [2023-11-10 12:14:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-10 12:14:28,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-10 12:14:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 755 transitions. [2023-11-10 12:14:28,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9654731457800512 [2023-11-10 12:14:28,273 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 755 transitions. [2023-11-10 12:14:28,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 755 transitions. [2023-11-10 12:14:28,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:14:28,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 755 transitions. [2023-11-10 12:14:28,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 377.5) internal successors, (755), 2 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,290 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,291 INFO L175 Difference]: Start difference. First operand has 361 places, 377 transitions, 772 flow. Second operand 2 states and 755 transitions. [2023-11-10 12:14:28,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 358 transitions, 746 flow [2023-11-10 12:14:28,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 358 transitions, 734 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-10 12:14:28,304 INFO L231 Difference]: Finished difference. Result has 356 places, 355 transitions, 716 flow [2023-11-10 12:14:28,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=716, PETRI_PLACES=356, PETRI_TRANSITIONS=355} [2023-11-10 12:14:28,309 INFO L281 CegarLoopForPetriNet]: 361 programPoint places, -5 predicate places. [2023-11-10 12:14:28,309 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 355 transitions, 716 flow [2023-11-10 12:14:28,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 369.5) internal successors, (739), 2 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:14:28,311 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:14:28,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 12:14:28,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-10 12:14:28,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:14:28,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1956646208, now seen corresponding path program 1 times [2023-11-10 12:14:28,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:14:28,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658204829] [2023-11-10 12:14:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:14:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:14:28,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:14:28,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658204829] [2023-11-10 12:14:28,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658204829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:14:28,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:14:28,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-10 12:14:28,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822221671] [2023-11-10 12:14:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:14:28,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-10 12:14:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:14:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-10 12:14:28,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-10 12:14:28,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 391 [2023-11-10 12:14:28,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 355 transitions, 716 flow. Second operand has 5 states, 5 states have (on average 353.4) internal successors, (1767), 5 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:14:28,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 391 [2023-11-10 12:14:28,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:14:28,684 INFO L124 PetriNetUnfolderBase]: 7/362 cut-off events. [2023-11-10 12:14:28,685 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-10 12:14:28,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 362 events. 7/362 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 855 event pairs, 0 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 390. Up to 11 conditions per place. [2023-11-10 12:14:28,688 INFO L140 encePairwiseOnDemand]: 384/391 looper letters, 19 selfloop transitions, 6 changer transitions 0/359 dead transitions. [2023-11-10 12:14:28,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 359 transitions, 774 flow [2023-11-10 12:14:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-10 12:14:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-10 12:14:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1776 transitions. [2023-11-10 12:14:28,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9084398976982098 [2023-11-10 12:14:28,692 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1776 transitions. [2023-11-10 12:14:28,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1776 transitions. [2023-11-10 12:14:28,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:14:28,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1776 transitions. [2023-11-10 12:14:28,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 355.2) internal successors, (1776), 5 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,700 INFO L175 Difference]: Start difference. First operand has 356 places, 355 transitions, 716 flow. Second operand 5 states and 1776 transitions. [2023-11-10 12:14:28,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 359 transitions, 774 flow [2023-11-10 12:14:28,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 359 transitions, 774 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-10 12:14:28,707 INFO L231 Difference]: Finished difference. Result has 358 places, 356 transitions, 736 flow [2023-11-10 12:14:28,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=736, PETRI_PLACES=358, PETRI_TRANSITIONS=356} [2023-11-10 12:14:28,708 INFO L281 CegarLoopForPetriNet]: 361 programPoint places, -3 predicate places. [2023-11-10 12:14:28,709 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 356 transitions, 736 flow [2023-11-10 12:14:28,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 353.4) internal successors, (1767), 5 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:28,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:14:28,710 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:14:28,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 12:14:28,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-10 12:14:28,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:14:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1309238146, now seen corresponding path program 1 times [2023-11-10 12:14:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:14:28,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247997321] [2023-11-10 12:14:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:14:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:14:28,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:14:28,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247997321] [2023-11-10 12:14:28,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247997321] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:14:28,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13571722] [2023-11-10 12:14:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:28,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:14:28,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:14:28,938 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) [2023-11-10 12:14:28,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-10 12:14:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:29,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-10 12:14:29,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:14:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:14:29,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:14:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 12:14:29,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13571722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 12:14:29,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 12:14:29,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-11-10 12:14:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123577746] [2023-11-10 12:14:29,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 12:14:29,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-10 12:14:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:14:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-10 12:14:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-10 12:14:29,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 391 [2023-11-10 12:14:29,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 356 transitions, 736 flow. Second operand has 14 states, 14 states have (on average 352.0) internal successors, (4928), 14 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:29,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:14:29,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 391 [2023-11-10 12:14:29,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:14:29,505 INFO L124 PetriNetUnfolderBase]: 7/372 cut-off events. [2023-11-10 12:14:29,505 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-10 12:14:29,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 372 events. 7/372 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 846 event pairs, 0 based on Foata normal form. 2/356 useless extension candidates. Maximal degree in co-relation 418. Up to 8 conditions per place. [2023-11-10 12:14:29,509 INFO L140 encePairwiseOnDemand]: 381/391 looper letters, 20 selfloop transitions, 13 changer transitions 0/366 dead transitions. [2023-11-10 12:14:29,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 366 transitions, 824 flow [2023-11-10 12:14:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 12:14:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 12:14:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3874 transitions. [2023-11-10 12:14:29,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9007207626133458 [2023-11-10 12:14:29,515 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3874 transitions. [2023-11-10 12:14:29,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3874 transitions. [2023-11-10 12:14:29,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:14:29,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3874 transitions. [2023-11-10 12:14:29,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 352.1818181818182) internal successors, (3874), 11 states have internal predecessors, (3874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:29,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:29,529 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:29,529 INFO L175 Difference]: Start difference. First operand has 358 places, 356 transitions, 736 flow. Second operand 11 states and 3874 transitions. [2023-11-10 12:14:29,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 366 transitions, 824 flow [2023-11-10 12:14:29,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 366 transitions, 814 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 12:14:29,535 INFO L231 Difference]: Finished difference. Result has 368 places, 362 transitions, 786 flow [2023-11-10 12:14:29,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=786, PETRI_PLACES=368, PETRI_TRANSITIONS=362} [2023-11-10 12:14:29,537 INFO L281 CegarLoopForPetriNet]: 361 programPoint places, 7 predicate places. [2023-11-10 12:14:29,537 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 362 transitions, 786 flow [2023-11-10 12:14:29,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 352.0) internal successors, (4928), 14 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:29,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:14:29,541 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:14:29,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-10 12:14:29,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:14:29,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-10 12:14:29,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:14:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1721933574, now seen corresponding path program 2 times [2023-11-10 12:14:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:14:29,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606394752] [2023-11-10 12:14:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:29,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:14:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-10 12:14:30,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:14:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606394752] [2023-11-10 12:14:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606394752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 12:14:30,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 12:14:30,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-10 12:14:30,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039191019] [2023-11-10 12:14:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 12:14:30,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-10 12:14:30,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:14:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-10 12:14:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-10 12:14:30,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 391 [2023-11-10 12:14:30,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 362 transitions, 786 flow. Second operand has 9 states, 9 states have (on average 314.8888888888889) internal successors, (2834), 9 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:30,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:14:30,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 391 [2023-11-10 12:14:30,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 12:14:31,522 INFO L124 PetriNetUnfolderBase]: 2406/10216 cut-off events. [2023-11-10 12:14:31,522 INFO L125 PetriNetUnfolderBase]: For 135/157 co-relation queries the response was YES. [2023-11-10 12:14:31,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14074 conditions, 10216 events. 2406/10216 cut-off events. For 135/157 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 115465 event pairs, 1006 based on Foata normal form. 1/9301 useless extension candidates. Maximal degree in co-relation 14066. Up to 1396 conditions per place. [2023-11-10 12:14:31,589 INFO L140 encePairwiseOnDemand]: 375/391 looper letters, 128 selfloop transitions, 14 changer transitions 4/450 dead transitions. [2023-11-10 12:14:31,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 450 transitions, 1270 flow [2023-11-10 12:14:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 12:14:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 12:14:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3247 transitions. [2023-11-10 12:14:31,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8304347826086956 [2023-11-10 12:14:31,594 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3247 transitions. [2023-11-10 12:14:31,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3247 transitions. [2023-11-10 12:14:31,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 12:14:31,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3247 transitions. [2023-11-10 12:14:31,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 324.7) internal successors, (3247), 10 states have internal predecessors, (3247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:31,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 391.0) internal successors, (4301), 11 states have internal predecessors, (4301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:31,606 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 391.0) internal successors, (4301), 11 states have internal predecessors, (4301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:31,606 INFO L175 Difference]: Start difference. First operand has 368 places, 362 transitions, 786 flow. Second operand 10 states and 3247 transitions. [2023-11-10 12:14:31,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 450 transitions, 1270 flow [2023-11-10 12:14:31,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 450 transitions, 1258 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-10 12:14:31,614 INFO L231 Difference]: Finished difference. Result has 380 places, 368 transitions, 845 flow [2023-11-10 12:14:31,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=845, PETRI_PLACES=380, PETRI_TRANSITIONS=368} [2023-11-10 12:14:31,615 INFO L281 CegarLoopForPetriNet]: 361 programPoint places, 19 predicate places. [2023-11-10 12:14:31,615 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 368 transitions, 845 flow [2023-11-10 12:14:31,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 314.8888888888889) internal successors, (2834), 9 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:31,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 12:14:31,617 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 12:14:31,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 12:14:31,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-10 12:14:31,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 12:14:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1390667202, now seen corresponding path program 1 times [2023-11-10 12:14:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 12:14:31,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482474952] [2023-11-10 12:14:31,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:31,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 12:14:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-10 12:14:31,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 12:14:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482474952] [2023-11-10 12:14:32,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482474952] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-10 12:14:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047788323] [2023-11-10 12:14:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 12:14:32,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-10 12:14:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 12:14:32,001 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) [2023-11-10 12:14:32,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-10 12:14:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 12:14:32,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-10 12:14:32,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-10 12:14:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-10 12:14:32,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-10 12:14:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-10 12:14:32,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047788323] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-10 12:14:32,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-10 12:14:32,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 25 [2023-11-10 12:14:32,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389058471] [2023-11-10 12:14:32,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-10 12:14:32,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-10 12:14:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 12:14:32,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-10 12:14:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2023-11-10 12:14:32,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 391 [2023-11-10 12:14:32,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 368 transitions, 845 flow. Second operand has 25 states, 25 states have (on average 243.28) internal successors, (6082), 25 states have internal predecessors, (6082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 12:14:32,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 12:14:32,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 391 [2023-11-10 12:14:32,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand