/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:26:31,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:26:32,067 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-VariableLbe.epf [2023-08-25 05:26:32,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:26:32,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:26:32,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:26:32,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:26:32,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:26:32,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:26:32,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:26:32,107 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:26:32,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:26:32,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:26:32,109 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:26:32,109 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:26:32,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:26:32,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:26:32,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:26:32,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:26:32,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:26:32,110 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:26:32,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:26:32,111 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:26:32,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:26:32,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:26:32,112 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:26:32,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:26:32,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:26:32,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:26:32,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:26:32,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:26:32,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:26:32,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:26:32,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:26:32,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:26:32,115 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:26:32,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:26:32,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:26:32,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:26:32,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:26:32,423 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:26:32,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2023-08-25 05:26:33,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:26:33,750 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:26:33,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-4.wvr.c [2023-08-25 05:26:33,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4134f50/14491bef9758498fb665d927a1bfd6c5/FLAGc092dc9c7 [2023-08-25 05:26:33,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4134f50/14491bef9758498fb665d927a1bfd6c5 [2023-08-25 05:26:33,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:26:33,778 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:26:33,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:26:33,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:26:33,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:26:33,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:33" (1/1) ... [2023-08-25 05:26:33,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f66496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:33, skipping insertion in model container [2023-08-25 05:26:33,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:26:33" (1/1) ... [2023-08-25 05:26:33,826 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:26:34,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:26:34,035 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:26:34,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:26:34,137 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:26:34,137 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:26:34,143 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:26:34,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34 WrapperNode [2023-08-25 05:26:34,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:26:34,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:26:34,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:26:34,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:26:34,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,234 INFO L138 Inliner]: procedures = 23, calls = 177, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 1083 [2023-08-25 05:26:34,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:26:34,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:26:34,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:26:34,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:26:34,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:26:34,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:26:34,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:26:34,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:26:34,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (1/1) ... [2023-08-25 05:26:34,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:26:34,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:26:34,362 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) [2023-08-25 05:26:34,388 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 [2023-08-25 05:26:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:26:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:26:34,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:26:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:26:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:26:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:26:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 05:26:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:26:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:26:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:26:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:26:34,409 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:26:34,554 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:26:34,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:26:35,521 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:26:36,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:26:36,205 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:26:36,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:36 BoogieIcfgContainer [2023-08-25 05:26:36,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:26:36,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:26:36,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:26:36,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:26:36,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:26:33" (1/3) ... [2023-08-25 05:26:36,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b2e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:36, skipping insertion in model container [2023-08-25 05:26:36,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:26:34" (2/3) ... [2023-08-25 05:26:36,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b2e0ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:26:36, skipping insertion in model container [2023-08-25 05:26:36,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:26:36" (3/3) ... [2023-08-25 05:26:36,219 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2023-08-25 05:26:36,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:26:36,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 196 error locations. [2023-08-25 05:26:36,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:26:36,374 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 05:26:36,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 536 transitions, 1104 flow [2023-08-25 05:26:36,641 INFO L124 PetriNetUnfolderBase]: 10/532 cut-off events. [2023-08-25 05:26:36,641 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:26:36,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 532 events. 10/532 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1389 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 416. Up to 2 conditions per place. [2023-08-25 05:26:36,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 536 transitions, 1104 flow [2023-08-25 05:26:36,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 522 places, 519 transitions, 1062 flow [2023-08-25 05:26:36,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:26:36,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 519 transitions, 1062 flow [2023-08-25 05:26:36,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 519 transitions, 1062 flow [2023-08-25 05:26:36,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 519 transitions, 1062 flow [2023-08-25 05:26:36,797 INFO L124 PetriNetUnfolderBase]: 10/519 cut-off events. [2023-08-25 05:26:36,798 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:26:36,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 519 events. 10/519 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1388 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 416. Up to 2 conditions per place. [2023-08-25 05:26:36,824 INFO L119 LiptonReduction]: Number of co-enabled transitions 56640 [2023-08-25 05:26:50,624 INFO L134 LiptonReduction]: Checked pairs total: 1002847 [2023-08-25 05:26:50,624 INFO L136 LiptonReduction]: Total number of compositions: 410 [2023-08-25 05:26:50,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:26:50,652 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=LoopsAndPotentialCycles, 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;@228acead, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:26:50,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 368 error locations. [2023-08-25 05:26:50,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:26:50,654 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:26:50,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:26:50,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:26:50,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:26:50,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 364 more)] === [2023-08-25 05:26:50,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:26:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 3810, now seen corresponding path program 1 times [2023-08-25 05:26:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:26:50,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931264688] [2023-08-25 05:26:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:26:50,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:26:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:26:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:26:50,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:26:50,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931264688] [2023-08-25 05:26:50,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931264688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:26:50,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:26:50,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:26:50,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279633456] [2023-08-25 05:26:50,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:26:50,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:26:50,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:26:50,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:26:50,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:26:50,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 946 [2023-08-25 05:26:50,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 272 transitions, 568 flow. Second operand has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:50,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:26:50,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 946 [2023-08-25 05:26:50,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:27:38,274 INFO L124 PetriNetUnfolderBase]: 474045/622592 cut-off events. [2023-08-25 05:27:38,275 INFO L125 PetriNetUnfolderBase]: For 13550/13550 co-relation queries the response was YES. [2023-08-25 05:27:39,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1258297 conditions, 622592 events. 474045/622592 cut-off events. For 13550/13550 co-relation queries the response was YES. Maximal size of possible extension queue 6090. Compared 3869160 event pairs, 474045 based on Foata normal form. 0/622592 useless extension candidates. Maximal degree in co-relation 1188380. Up to 622593 conditions per place. [2023-08-25 05:27:41,403 INFO L140 encePairwiseOnDemand]: 751/946 looper letters, 77 selfloop transitions, 0 changer transitions 0/77 dead transitions. [2023-08-25 05:27:41,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 77 transitions, 332 flow [2023-08-25 05:27:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:27:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:27:41,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 866 transitions. [2023-08-25 05:27:41,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45771670190274844 [2023-08-25 05:27:41,419 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 866 transitions. [2023-08-25 05:27:41,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 866 transitions. [2023-08-25 05:27:41,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:27:41,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 866 transitions. [2023-08-25 05:27:41,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 433.0) internal successors, (866), 2 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:41,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 946.0) internal successors, (2838), 3 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:41,438 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 946.0) internal successors, (2838), 3 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:41,440 INFO L175 Difference]: Start difference. First operand has 285 places, 272 transitions, 568 flow. Second operand 2 states and 866 transitions. [2023-08-25 05:27:41,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 77 transitions, 332 flow [2023-08-25 05:27:44,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 77 transitions, 316 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 05:27:44,296 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 162 flow [2023-08-25 05:27:44,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=162, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2023-08-25 05:27:44,300 INFO L281 CegarLoopForPetriNet]: 285 programPoint places, -202 predicate places. [2023-08-25 05:27:44,301 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 162 flow [2023-08-25 05:27:44,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 297.5) internal successors, (595), 2 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:44,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:27:44,301 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] [2023-08-25 05:27:44,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:27:44,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 364 more)] === [2023-08-25 05:27:44,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:27:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -928071221, now seen corresponding path program 1 times [2023-08-25 05:27:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:27:44,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52191455] [2023-08-25 05:27:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:27:44,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:27:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:27:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:27:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:27:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52191455] [2023-08-25 05:27:45,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52191455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:27:45,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:27:45,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 05:27:45,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640698638] [2023-08-25 05:27:45,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:27:45,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 05:27:45,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:27:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 05:27:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-08-25 05:27:45,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 946 [2023-08-25 05:27:45,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 162 flow. Second operand has 11 states, 11 states have (on average 292.0) internal successors, (3212), 11 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:45,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:27:45,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 946 [2023-08-25 05:27:45,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:28:34,511 INFO L124 PetriNetUnfolderBase]: 542051/718765 cut-off events. [2023-08-25 05:28:34,512 INFO L125 PetriNetUnfolderBase]: For 2785/2785 co-relation queries the response was YES. [2023-08-25 05:28:35,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1442338 conditions, 718765 events. 542051/718765 cut-off events. For 2785/2785 co-relation queries the response was YES. Maximal size of possible extension queue 6406. Compared 4654557 event pairs, 254521 based on Foata normal form. 1/718766 useless extension candidates. Maximal degree in co-relation 1442335. Up to 320626 conditions per place. [2023-08-25 05:28:38,470 INFO L140 encePairwiseOnDemand]: 936/946 looper letters, 464 selfloop transitions, 25 changer transitions 38/527 dead transitions. [2023-08-25 05:28:38,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 527 transitions, 2167 flow [2023-08-25 05:28:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 05:28:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 05:28:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 4518 transitions. [2023-08-25 05:28:38,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34113560857746905 [2023-08-25 05:28:38,496 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 4518 transitions. [2023-08-25 05:28:38,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 4518 transitions. [2023-08-25 05:28:38,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:28:38,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 4518 transitions. [2023-08-25 05:28:38,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 322.7142857142857) internal successors, (4518), 14 states have internal predecessors, (4518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:28:38,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 946.0) internal successors, (14190), 15 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:28:38,555 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 946.0) internal successors, (14190), 15 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:28:38,555 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 162 flow. Second operand 14 states and 4518 transitions. [2023-08-25 05:28:38,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 527 transitions, 2167 flow [2023-08-25 05:28:38,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 527 transitions, 2167 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:28:38,579 INFO L231 Difference]: Finished difference. Result has 101 places, 106 transitions, 317 flow [2023-08-25 05:28:38,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=317, PETRI_PLACES=101, PETRI_TRANSITIONS=106} [2023-08-25 05:28:38,581 INFO L281 CegarLoopForPetriNet]: 285 programPoint places, -184 predicate places. [2023-08-25 05:28:38,581 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 317 flow [2023-08-25 05:28:38,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 292.0) internal successors, (3212), 11 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:28:38,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:28:38,601 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] [2023-08-25 05:28:38,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:28:38,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 364 more)] === [2023-08-25 05:28:38,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:28:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1565787243, now seen corresponding path program 2 times [2023-08-25 05:28:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:28:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230657446] [2023-08-25 05:28:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:28:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:28:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:28:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:28:39,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:28:39,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230657446] [2023-08-25 05:28:39,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230657446] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:28:39,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:28:39,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:28:39,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319832565] [2023-08-25 05:28:39,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:28:39,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:28:39,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:28:39,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:28:39,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:28:39,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 946 [2023-08-25 05:28:39,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:28:39,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:28:39,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 946 [2023-08-25 05:28:39,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:29:35,503 INFO L124 PetriNetUnfolderBase]: 533273/709896 cut-off events. [2023-08-25 05:29:35,503 INFO L125 PetriNetUnfolderBase]: For 66786/66786 co-relation queries the response was YES. [2023-08-25 05:29:37,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1537614 conditions, 709896 events. 533273/709896 cut-off events. For 66786/66786 co-relation queries the response was YES. Maximal size of possible extension queue 6406. Compared 4732813 event pairs, 375391 based on Foata normal form. 8610/718506 useless extension candidates. Maximal degree in co-relation 1537605. Up to 506387 conditions per place. [2023-08-25 05:29:40,112 INFO L140 encePairwiseOnDemand]: 941/946 looper letters, 164 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-08-25 05:29:40,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 166 transitions, 813 flow [2023-08-25 05:29:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:29:40,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:29:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2023-08-25 05:29:40,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3562367864693446 [2023-08-25 05:29:40,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2023-08-25 05:29:40,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2023-08-25 05:29:40,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:29:40,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2023-08-25 05:29:40,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:29:40,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:29:40,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:29:40,147 INFO L175 Difference]: Start difference. First operand has 101 places, 106 transitions, 317 flow. Second operand 3 states and 1011 transitions. [2023-08-25 05:29:40,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 166 transitions, 813 flow [2023-08-25 05:29:43,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 166 transitions, 811 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 05:29:43,208 INFO L231 Difference]: Finished difference. Result has 101 places, 106 transitions, 327 flow [2023-08-25 05:29:43,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=101, PETRI_TRANSITIONS=106} [2023-08-25 05:29:43,209 INFO L281 CegarLoopForPetriNet]: 285 programPoint places, -184 predicate places. [2023-08-25 05:29:43,209 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 327 flow [2023-08-25 05:29:43,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:29:43,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:29:43,210 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] [2023-08-25 05:29:43,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:29:43,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 364 more)] === [2023-08-25 05:29:43,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:29:43,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1640187615, now seen corresponding path program 3 times [2023-08-25 05:29:43,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:29:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021105194] [2023-08-25 05:29:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:29:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:29:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:29:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:29:44,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:29:44,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021105194] [2023-08-25 05:29:44,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021105194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:29:44,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:29:44,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 05:29:44,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412074417] [2023-08-25 05:29:44,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:29:44,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 05:29:44,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:29:44,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 05:29:44,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-25 05:29:44,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 946 [2023-08-25 05:29:44,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 296.0) internal successors, (2072), 7 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:29:44,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:29:44,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 946 [2023-08-25 05:29:44,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:31:11,723 INFO L124 PetriNetUnfolderBase]: 824448/1090837 cut-off events. [2023-08-25 05:31:11,723 INFO L125 PetriNetUnfolderBase]: For 154834/154834 co-relation queries the response was YES. [2023-08-25 05:31:14,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2441096 conditions, 1090837 events. 824448/1090837 cut-off events. For 154834/154834 co-relation queries the response was YES. Maximal size of possible extension queue 10212. Compared 7395567 event pairs, 351581 based on Foata normal form. 6378/1097215 useless extension candidates. Maximal degree in co-relation 2441086. Up to 729690 conditions per place. [2023-08-25 05:31:17,688 INFO L140 encePairwiseOnDemand]: 929/946 looper letters, 314 selfloop transitions, 30 changer transitions 0/344 dead transitions. [2023-08-25 05:31:17,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 344 transitions, 1668 flow [2023-08-25 05:31:17,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:31:17,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:31:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2276 transitions. [2023-08-25 05:31:17,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3437028088190879 [2023-08-25 05:31:17,695 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2276 transitions. [2023-08-25 05:31:17,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2276 transitions. [2023-08-25 05:31:17,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:31:17,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2276 transitions. [2023-08-25 05:31:17,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 325.14285714285717) internal successors, (2276), 7 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:17,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:17,709 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 946.0) internal successors, (7568), 8 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:17,709 INFO L175 Difference]: Start difference. First operand has 101 places, 106 transitions, 327 flow. Second operand 7 states and 2276 transitions. [2023-08-25 05:31:17,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 344 transitions, 1668 flow [2023-08-25 05:31:32,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 344 transitions, 1654 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:31:32,188 INFO L231 Difference]: Finished difference. Result has 110 places, 136 transitions, 537 flow [2023-08-25 05:31:32,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=946, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=537, PETRI_PLACES=110, PETRI_TRANSITIONS=136} [2023-08-25 05:31:32,189 INFO L281 CegarLoopForPetriNet]: 285 programPoint places, -175 predicate places. [2023-08-25 05:31:32,189 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 136 transitions, 537 flow [2023-08-25 05:31:32,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 296.0) internal successors, (2072), 7 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:32,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:31:32,190 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] [2023-08-25 05:31:32,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:31:32,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 364 more)] === [2023-08-25 05:31:32,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:31:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1965931175, now seen corresponding path program 4 times [2023-08-25 05:31:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:31:32,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050468716] [2023-08-25 05:31:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:31:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:31:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:31:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:31:32,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:31:32,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050468716] [2023-08-25 05:31:32,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050468716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:31:32,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:31:32,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:31:32,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946212468] [2023-08-25 05:31:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:31:32,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:31:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:31:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:31:32,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:31:32,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 946 [2023-08-25 05:31:32,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 136 transitions, 537 flow. Second operand has 3 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:31:32,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:31:32,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 946 [2023-08-25 05:31:32,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:33:10,120 INFO L124 PetriNetUnfolderBase]: 806644/1072097 cut-off events. [2023-08-25 05:33:10,120 INFO L125 PetriNetUnfolderBase]: For 514399/514399 co-relation queries the response was YES. [2023-08-25 05:33:14,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2785762 conditions, 1072097 events. 806644/1072097 cut-off events. For 514399/514399 co-relation queries the response was YES. Maximal size of possible extension queue 10211. Compared 7466002 event pairs, 505358 based on Foata normal form. 14606/1086703 useless extension candidates. Maximal degree in co-relation 2785747. Up to 753676 conditions per place. [2023-08-25 05:33:18,867 INFO L140 encePairwiseOnDemand]: 941/946 looper letters, 224 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2023-08-25 05:33:18,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 226 transitions, 1355 flow [2023-08-25 05:33:18,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:33:18,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:33:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2023-08-25 05:33:18,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3562367864693446 [2023-08-25 05:33:18,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2023-08-25 05:33:18,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2023-08-25 05:33:18,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:33:18,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2023-08-25 05:33:18,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:18,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:18,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 946.0) internal successors, (3784), 4 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:33:18,900 INFO L175 Difference]: Start difference. First operand has 110 places, 136 transitions, 537 flow. Second operand 3 states and 1011 transitions. [2023-08-25 05:33:18,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 226 transitions, 1355 flow