/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:34:47,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:34:47,939 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 19:34:47,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:34:47,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:34:47,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:34:47,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:34:47,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:34:47,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:34:47,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:34:47,972 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:34:47,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:34:47,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:34:47,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:34:47,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:34:47,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:34:47,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:34:47,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:34:47,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:34:47,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:34:47,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:34:47,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:34:47,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:34:47,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:34:47,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:34:47,985 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:34:47,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:34:47,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:34:47,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:34:47,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:34:47,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:34:47,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:34:47,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:34:47,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:34:47,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:34:47,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:34:48,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:34:48,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:34:48,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:34:48,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:34:48,328 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:34:48,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2023-08-25 19:34:49,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:34:49,700 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:34:49,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2023-08-25 19:34:49,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7936aed38/77cce2358a12484b81c73bc9e07daad3/FLAGdb650100e [2023-08-25 19:34:49,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7936aed38/77cce2358a12484b81c73bc9e07daad3 [2023-08-25 19:34:49,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:34:49,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:34:49,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:34:49,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:34:49,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:34:49,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:34:49" (1/1) ... [2023-08-25 19:34:49,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7f41c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:49, skipping insertion in model container [2023-08-25 19:34:49,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:34:49" (1/1) ... [2023-08-25 19:34:49,792 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:34:50,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:34:50,017 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:34:50,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:34:50,086 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:34:50,086 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:34:50,092 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:34:50,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50 WrapperNode [2023-08-25 19:34:50,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:34:50,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:34:50,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:34:50,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:34:50,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,169 INFO L138 Inliner]: procedures = 22, calls = 111, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 668 [2023-08-25 19:34:50,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:34:50,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:34:50,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:34:50,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:34:50,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:34:50,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:34:50,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:34:50,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:34:50,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (1/1) ... [2023-08-25 19:34:50,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:34:50,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:34:50,262 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 19:34:50,267 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 19:34:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:34:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:34:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:34:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:34:50,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:34:50,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:34:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:34:50,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:34:50,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:34:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:34:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:34:50,296 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 19:34:50,417 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:34:50,420 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:34:50,988 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:34:51,376 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:34:51,376 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:34:51,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:34:51 BoogieIcfgContainer [2023-08-25 19:34:51,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:34:51,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:34:51,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:34:51,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:34:51,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:34:49" (1/3) ... [2023-08-25 19:34:51,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827939f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:34:51, skipping insertion in model container [2023-08-25 19:34:51,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:34:50" (2/3) ... [2023-08-25 19:34:51,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2827939f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:34:51, skipping insertion in model container [2023-08-25 19:34:51,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:34:51" (3/3) ... [2023-08-25 19:34:51,388 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2023-08-25 19:34:51,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:34:51,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 115 error locations. [2023-08-25 19:34:51,404 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:34:51,518 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:34:51,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 371 transitions, 766 flow [2023-08-25 19:34:51,739 INFO L124 PetriNetUnfolderBase]: 8/368 cut-off events. [2023-08-25 19:34:51,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:34:51,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 368 events. 8/368 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 728 event pairs, 0 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 275. Up to 2 conditions per place. [2023-08-25 19:34:51,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 371 transitions, 766 flow [2023-08-25 19:34:51,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 357 transitions, 732 flow [2023-08-25 19:34:51,765 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:34:51,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 359 places, 357 transitions, 732 flow [2023-08-25 19:34:51,774 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 359 places, 357 transitions, 732 flow [2023-08-25 19:34:51,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 357 transitions, 732 flow [2023-08-25 19:34:51,840 INFO L124 PetriNetUnfolderBase]: 8/357 cut-off events. [2023-08-25 19:34:51,840 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:34:51,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 357 events. 8/357 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 723 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 275. Up to 2 conditions per place. [2023-08-25 19:34:51,851 INFO L119 LiptonReduction]: Number of co-enabled transitions 18630 [2023-08-25 19:35:02,194 INFO L134 LiptonReduction]: Checked pairs total: 271751 [2023-08-25 19:35:02,194 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-08-25 19:35:02,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:35:02,211 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;@2a12738, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:35:02,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 211 error locations. [2023-08-25 19:35:02,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:35:02,213 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:35:02,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:35:02,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:02,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:35:02,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:02,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2317, now seen corresponding path program 1 times [2023-08-25 19:35:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335080200] [2023-08-25 19:35:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:02,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:02,309 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 19:35:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335080200] [2023-08-25 19:35:02,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335080200] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:02,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:02,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:35:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46925607] [2023-08-25 19:35:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:02,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:35:02,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:35:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:35:02,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 671 [2023-08-25 19:35:02,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 163 transitions, 344 flow. Second operand has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 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 19:35:02,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:02,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 671 [2023-08-25 19:35:02,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:04,042 INFO L124 PetriNetUnfolderBase]: 11268/16393 cut-off events. [2023-08-25 19:35:04,043 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2023-08-25 19:35:04,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33340 conditions, 16393 events. 11268/16393 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 83227 event pairs, 11268 based on Foata normal form. 0/16393 useless extension candidates. Maximal degree in co-relation 31118. Up to 16394 conditions per place. [2023-08-25 19:35:04,135 INFO L140 encePairwiseOnDemand]: 557/671 looper letters, 49 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-25 19:35:04,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 214 flow [2023-08-25 19:35:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:35:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:35:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 629 transitions. [2023-08-25 19:35:04,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46870342771982115 [2023-08-25 19:35:04,153 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 629 transitions. [2023-08-25 19:35:04,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 629 transitions. [2023-08-25 19:35:04,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:04,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 629 transitions. [2023-08-25 19:35:04,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 314.5) internal successors, (629), 2 states have internal predecessors, (629), 0 states have call successors, (0), 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 19:35:04,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 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 19:35:04,170 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 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 19:35:04,172 INFO L175 Difference]: Start difference. First operand has 173 places, 163 transitions, 344 flow. Second operand 2 states and 629 transitions. [2023-08-25 19:35:04,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 214 flow [2023-08-25 19:35:04,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 202 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:35:04,188 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 104 flow [2023-08-25 19:35:04,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=104, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-08-25 19:35:04,192 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -119 predicate places. [2023-08-25 19:35:04,193 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 104 flow [2023-08-25 19:35:04,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 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 19:35:04,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:04,194 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] [2023-08-25 19:35:04,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:35:04,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:04,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:04,203 INFO L85 PathProgramCache]: Analyzing trace with hash 23469926, now seen corresponding path program 1 times [2023-08-25 19:35:04,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:04,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8556493] [2023-08-25 19:35:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:04,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:05,589 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 19:35:05,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:05,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8556493] [2023-08-25 19:35:05,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8556493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:05,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:35:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259170690] [2023-08-25 19:35:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:05,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:35:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:35:05,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:35:05,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:05,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 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 19:35:05,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:05,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:05,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:07,519 INFO L124 PetriNetUnfolderBase]: 15316/22269 cut-off events. [2023-08-25 19:35:07,520 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES. [2023-08-25 19:35:07,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44766 conditions, 22269 events. 15316/22269 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 123200 event pairs, 3737 based on Foata normal form. 224/22493 useless extension candidates. Maximal degree in co-relation 44763. Up to 15516 conditions per place. [2023-08-25 19:35:07,612 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 125 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-08-25 19:35:07,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 141 transitions, 575 flow [2023-08-25 19:35:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:35:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:35:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1486 transitions. [2023-08-25 19:35:07,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691008445106806 [2023-08-25 19:35:07,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1486 transitions. [2023-08-25 19:35:07,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1486 transitions. [2023-08-25 19:35:07,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:07,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1486 transitions. [2023-08-25 19:35:07,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 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 19:35:07,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 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 19:35:07,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 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 19:35:07,631 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 104 flow. Second operand 6 states and 1486 transitions. [2023-08-25 19:35:07,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 141 transitions, 575 flow [2023-08-25 19:35:07,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 141 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:35:07,635 INFO L231 Difference]: Finished difference. Result has 63 places, 64 transitions, 215 flow [2023-08-25 19:35:07,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2023-08-25 19:35:07,636 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -110 predicate places. [2023-08-25 19:35:07,636 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 215 flow [2023-08-25 19:35:07,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 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 19:35:07,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:07,640 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] [2023-08-25 19:35:07,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:35:07,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:07,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash 345369110, now seen corresponding path program 2 times [2023-08-25 19:35:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:07,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600994237] [2023-08-25 19:35:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:07,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:08,100 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 19:35:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600994237] [2023-08-25 19:35:08,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600994237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:08,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:08,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:35:08,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273672150] [2023-08-25 19:35:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:08,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:35:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:35:08,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:35:08,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 19:35:08,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 215 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:35:08,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:08,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 19:35:08,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:10,612 INFO L124 PetriNetUnfolderBase]: 17174/25394 cut-off events. [2023-08-25 19:35:10,612 INFO L125 PetriNetUnfolderBase]: For 8223/8223 co-relation queries the response was YES. [2023-08-25 19:35:10,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59672 conditions, 25394 events. 17174/25394 cut-off events. For 8223/8223 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 144641 event pairs, 7587 based on Foata normal form. 1/25395 useless extension candidates. Maximal degree in co-relation 59664. Up to 11736 conditions per place. [2023-08-25 19:35:10,754 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 256 selfloop transitions, 15 changer transitions 29/300 dead transitions. [2023-08-25 19:35:10,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 300 transitions, 1541 flow [2023-08-25 19:35:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 19:35:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 19:35:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2707 transitions. [2023-08-25 19:35:10,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3667524725646931 [2023-08-25 19:35:10,762 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2707 transitions. [2023-08-25 19:35:10,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2707 transitions. [2023-08-25 19:35:10,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:10,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2707 transitions. [2023-08-25 19:35:10,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 246.0909090909091) internal successors, (2707), 11 states have internal predecessors, (2707), 0 states have call successors, (0), 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 19:35:10,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:35:10,782 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:35:10,782 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 215 flow. Second operand 11 states and 2707 transitions. [2023-08-25 19:35:10,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 300 transitions, 1541 flow [2023-08-25 19:35:10,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 300 transitions, 1541 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:35:10,824 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 307 flow [2023-08-25 19:35:10,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=307, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-25 19:35:10,825 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -96 predicate places. [2023-08-25 19:35:10,825 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 307 flow [2023-08-25 19:35:10,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:35:10,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:10,826 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] [2023-08-25 19:35:10,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:35:10,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:10,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1453892748, now seen corresponding path program 3 times [2023-08-25 19:35:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:10,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277939614] [2023-08-25 19:35:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:10,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:11,021 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 19:35:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277939614] [2023-08-25 19:35:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277939614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:35:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292589155] [2023-08-25 19:35:11,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:11,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:35:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:11,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:35:11,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:35:11,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 671 [2023-08-25 19:35:11,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 307 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 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) [2023-08-25 19:35:11,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:11,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 671 [2023-08-25 19:35:11,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:12,993 INFO L124 PetriNetUnfolderBase]: 15196/22725 cut-off events. [2023-08-25 19:35:12,993 INFO L125 PetriNetUnfolderBase]: For 7061/7061 co-relation queries the response was YES. [2023-08-25 19:35:13,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57147 conditions, 22725 events. 15196/22725 cut-off events. For 7061/7061 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 132641 event pairs, 9308 based on Foata normal form. 382/23107 useless extension candidates. Maximal degree in co-relation 57134. Up to 15488 conditions per place. [2023-08-25 19:35:13,161 INFO L140 encePairwiseOnDemand]: 667/671 looper letters, 118 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-08-25 19:35:13,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 693 flow [2023-08-25 19:35:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:35:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:35:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-25 19:35:13,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38152011922503726 [2023-08-25 19:35:13,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-25 19:35:13,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-25 19:35:13,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:13,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-25 19:35:13,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 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 19:35:13,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 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 19:35:13,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 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 19:35:13,170 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 307 flow. Second operand 3 states and 768 transitions. [2023-08-25 19:35:13,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 693 flow [2023-08-25 19:35:13,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 691 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 19:35:13,268 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 315 flow [2023-08-25 19:35:13,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2023-08-25 19:35:13,270 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -96 predicate places. [2023-08-25 19:35:13,270 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 315 flow [2023-08-25 19:35:13,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 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) [2023-08-25 19:35:13,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:13,271 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] [2023-08-25 19:35:13,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:35:13,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:13,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 117761978, now seen corresponding path program 4 times [2023-08-25 19:35:13,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:13,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538046819] [2023-08-25 19:35:13,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:13,457 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 19:35:13,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538046819] [2023-08-25 19:35:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538046819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:13,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:13,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:35:13,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152480482] [2023-08-25 19:35:13,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:13,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:35:13,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:13,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:35:13,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:35:13,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 671 [2023-08-25 19:35:13,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 315 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 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) [2023-08-25 19:35:13,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:13,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 671 [2023-08-25 19:35:13,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:15,196 INFO L124 PetriNetUnfolderBase]: 14810/22283 cut-off events. [2023-08-25 19:35:15,196 INFO L125 PetriNetUnfolderBase]: For 10484/10484 co-relation queries the response was YES. [2023-08-25 19:35:15,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58327 conditions, 22283 events. 14810/22283 cut-off events. For 10484/10484 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 129880 event pairs, 9514 based on Foata normal form. 246/22529 useless extension candidates. Maximal degree in co-relation 58313. Up to 16332 conditions per place. [2023-08-25 19:35:15,295 INFO L140 encePairwiseOnDemand]: 667/671 looper letters, 122 selfloop transitions, 2 changer transitions 1/125 dead transitions. [2023-08-25 19:35:15,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 749 flow [2023-08-25 19:35:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:35:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:35:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-25 19:35:15,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38152011922503726 [2023-08-25 19:35:15,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-25 19:35:15,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-25 19:35:15,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:15,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-25 19:35:15,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 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 19:35:15,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 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 19:35:15,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 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 19:35:15,304 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 315 flow. Second operand 3 states and 768 transitions. [2023-08-25 19:35:15,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 749 flow [2023-08-25 19:35:15,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 125 transitions, 741 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:35:15,360 INFO L231 Difference]: Finished difference. Result has 78 places, 80 transitions, 321 flow [2023-08-25 19:35:15,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=78, PETRI_TRANSITIONS=80} [2023-08-25 19:35:15,361 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -95 predicate places. [2023-08-25 19:35:15,361 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 80 transitions, 321 flow [2023-08-25 19:35:15,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 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) [2023-08-25 19:35:15,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:15,362 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] [2023-08-25 19:35:15,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:35:15,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:15,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:15,363 INFO L85 PathProgramCache]: Analyzing trace with hash -226859222, now seen corresponding path program 5 times [2023-08-25 19:35:15,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:15,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907309678] [2023-08-25 19:35:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:15,732 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 19:35:15,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907309678] [2023-08-25 19:35:15,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907309678] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:15,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:15,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:35:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717416737] [2023-08-25 19:35:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:15,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:35:15,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:15,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:35:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:35:15,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 19:35:15,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 80 transitions, 321 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:35:15,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:15,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 19:35:15,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:17,988 INFO L124 PetriNetUnfolderBase]: 15505/23475 cut-off events. [2023-08-25 19:35:17,989 INFO L125 PetriNetUnfolderBase]: For 11307/11307 co-relation queries the response was YES. [2023-08-25 19:35:18,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62492 conditions, 23475 events. 15505/23475 cut-off events. For 11307/11307 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 136833 event pairs, 6623 based on Foata normal form. 1/23476 useless extension candidates. Maximal degree in co-relation 62477. Up to 10030 conditions per place. [2023-08-25 19:35:18,098 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 253 selfloop transitions, 21 changer transitions 30/304 dead transitions. [2023-08-25 19:35:18,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 304 transitions, 1735 flow [2023-08-25 19:35:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 19:35:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 19:35:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2703 transitions. [2023-08-25 19:35:18,106 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3662105405771576 [2023-08-25 19:35:18,106 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2703 transitions. [2023-08-25 19:35:18,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2703 transitions. [2023-08-25 19:35:18,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:18,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2703 transitions. [2023-08-25 19:35:18,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 245.72727272727272) internal successors, (2703), 11 states have internal predecessors, (2703), 0 states have call successors, (0), 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 19:35:18,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:35:18,123 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:35:18,123 INFO L175 Difference]: Start difference. First operand has 78 places, 80 transitions, 321 flow. Second operand 11 states and 2703 transitions. [2023-08-25 19:35:18,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 304 transitions, 1735 flow [2023-08-25 19:35:18,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 304 transitions, 1715 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:35:18,167 INFO L231 Difference]: Finished difference. Result has 91 places, 89 transitions, 435 flow [2023-08-25 19:35:18,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=435, PETRI_PLACES=91, PETRI_TRANSITIONS=89} [2023-08-25 19:35:18,168 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -82 predicate places. [2023-08-25 19:35:18,168 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 89 transitions, 435 flow [2023-08-25 19:35:18,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:35:18,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:18,170 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] [2023-08-25 19:35:18,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:35:18,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:18,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:18,170 INFO L85 PathProgramCache]: Analyzing trace with hash -698711144, now seen corresponding path program 6 times [2023-08-25 19:35:18,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466009432] [2023-08-25 19:35:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:19,074 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 19:35:19,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:19,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466009432] [2023-08-25 19:35:19,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466009432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:19,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:19,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:35:19,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832374696] [2023-08-25 19:35:19,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:19,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:35:19,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:19,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:35:19,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:35:19,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:19,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 89 transitions, 435 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:35:19,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:19,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:19,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:21,533 INFO L124 PetriNetUnfolderBase]: 17217/26086 cut-off events. [2023-08-25 19:35:21,534 INFO L125 PetriNetUnfolderBase]: For 16745/16745 co-relation queries the response was YES. [2023-08-25 19:35:21,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71781 conditions, 26086 events. 17217/26086 cut-off events. For 16745/16745 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 155726 event pairs, 7405 based on Foata normal form. 270/26356 useless extension candidates. Maximal degree in co-relation 71761. Up to 21233 conditions per place. [2023-08-25 19:35:21,652 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 181 selfloop transitions, 28 changer transitions 1/210 dead transitions. [2023-08-25 19:35:21,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 210 transitions, 1332 flow [2023-08-25 19:35:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:35:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:35:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1951 transitions. [2023-08-25 19:35:21,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3634500745156483 [2023-08-25 19:35:21,658 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1951 transitions. [2023-08-25 19:35:21,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1951 transitions. [2023-08-25 19:35:21,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:21,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1951 transitions. [2023-08-25 19:35:21,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 243.875) internal successors, (1951), 8 states have internal predecessors, (1951), 0 states have call successors, (0), 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 19:35:21,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:21,670 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:21,670 INFO L175 Difference]: Start difference. First operand has 91 places, 89 transitions, 435 flow. Second operand 8 states and 1951 transitions. [2023-08-25 19:35:21,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 210 transitions, 1332 flow [2023-08-25 19:35:21,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 210 transitions, 1297 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 19:35:21,775 INFO L231 Difference]: Finished difference. Result has 97 places, 112 transitions, 655 flow [2023-08-25 19:35:21,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=655, PETRI_PLACES=97, PETRI_TRANSITIONS=112} [2023-08-25 19:35:21,776 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -76 predicate places. [2023-08-25 19:35:21,776 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 112 transitions, 655 flow [2023-08-25 19:35:21,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:35:21,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:21,777 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] [2023-08-25 19:35:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:35:21,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:21,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash 929469658, now seen corresponding path program 7 times [2023-08-25 19:35:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778792118] [2023-08-25 19:35:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:22,443 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 19:35:22,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:22,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778792118] [2023-08-25 19:35:22,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778792118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:22,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:22,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:35:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713159584] [2023-08-25 19:35:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:22,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:35:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:22,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:35:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:35:22,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:22,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 112 transitions, 655 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:22,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:22,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:22,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:25,663 INFO L124 PetriNetUnfolderBase]: 20534/30999 cut-off events. [2023-08-25 19:35:25,663 INFO L125 PetriNetUnfolderBase]: For 28410/28410 co-relation queries the response was YES. [2023-08-25 19:35:25,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91198 conditions, 30999 events. 20534/30999 cut-off events. For 28410/28410 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 190264 event pairs, 7059 based on Foata normal form. 250/31249 useless extension candidates. Maximal degree in co-relation 91174. Up to 25119 conditions per place. [2023-08-25 19:35:25,830 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 192 selfloop transitions, 23 changer transitions 4/219 dead transitions. [2023-08-25 19:35:25,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 219 transitions, 1511 flow [2023-08-25 19:35:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:35:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:35:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1722 transitions. [2023-08-25 19:35:25,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36661698956780925 [2023-08-25 19:35:25,835 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1722 transitions. [2023-08-25 19:35:25,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1722 transitions. [2023-08-25 19:35:25,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:25,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1722 transitions. [2023-08-25 19:35:25,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.0) internal successors, (1722), 7 states have internal predecessors, (1722), 0 states have call successors, (0), 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 19:35:25,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:25,845 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:25,845 INFO L175 Difference]: Start difference. First operand has 97 places, 112 transitions, 655 flow. Second operand 7 states and 1722 transitions. [2023-08-25 19:35:25,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 219 transitions, 1511 flow [2023-08-25 19:35:26,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 219 transitions, 1497 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 19:35:26,054 INFO L231 Difference]: Finished difference. Result has 106 places, 126 transitions, 790 flow [2023-08-25 19:35:26,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=790, PETRI_PLACES=106, PETRI_TRANSITIONS=126} [2023-08-25 19:35:26,055 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -67 predicate places. [2023-08-25 19:35:26,055 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 126 transitions, 790 flow [2023-08-25 19:35:26,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:26,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:26,056 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] [2023-08-25 19:35:26,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:35:26,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:26,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash 977194994, now seen corresponding path program 8 times [2023-08-25 19:35:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:26,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197341200] [2023-08-25 19:35:26,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:26,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:26,735 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 19:35:26,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:26,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197341200] [2023-08-25 19:35:26,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197341200] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:26,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:26,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:35:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745559105] [2023-08-25 19:35:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:26,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:35:26,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:26,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:35:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:35:26,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:26,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 126 transitions, 790 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:35:26,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:26,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:26,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:30,083 INFO L124 PetriNetUnfolderBase]: 23133/34830 cut-off events. [2023-08-25 19:35:30,084 INFO L125 PetriNetUnfolderBase]: For 42898/42898 co-relation queries the response was YES. [2023-08-25 19:35:30,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110581 conditions, 34830 events. 23133/34830 cut-off events. For 42898/42898 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 217673 event pairs, 8393 based on Foata normal form. 250/35080 useless extension candidates. Maximal degree in co-relation 110553. Up to 28848 conditions per place. [2023-08-25 19:35:30,290 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 203 selfloop transitions, 26 changer transitions 12/241 dead transitions. [2023-08-25 19:35:30,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 241 transitions, 1759 flow [2023-08-25 19:35:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:35:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:35:30,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1959 transitions. [2023-08-25 19:35:30,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3649403874813711 [2023-08-25 19:35:30,295 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1959 transitions. [2023-08-25 19:35:30,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1959 transitions. [2023-08-25 19:35:30,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:30,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1959 transitions. [2023-08-25 19:35:30,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 244.875) internal successors, (1959), 8 states have internal predecessors, (1959), 0 states have call successors, (0), 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 19:35:30,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:30,305 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:30,305 INFO L175 Difference]: Start difference. First operand has 106 places, 126 transitions, 790 flow. Second operand 8 states and 1959 transitions. [2023-08-25 19:35:30,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 241 transitions, 1759 flow [2023-08-25 19:35:30,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 241 transitions, 1724 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-08-25 19:35:30,558 INFO L231 Difference]: Finished difference. Result has 114 places, 136 transitions, 907 flow [2023-08-25 19:35:30,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=907, PETRI_PLACES=114, PETRI_TRANSITIONS=136} [2023-08-25 19:35:30,559 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -59 predicate places. [2023-08-25 19:35:30,559 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 136 transitions, 907 flow [2023-08-25 19:35:30,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:35:30,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:30,560 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] [2023-08-25 19:35:30,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:35:30,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:30,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 368753726, now seen corresponding path program 9 times [2023-08-25 19:35:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:30,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86519659] [2023-08-25 19:35:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:31,209 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 19:35:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:31,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86519659] [2023-08-25 19:35:31,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86519659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:31,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:31,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:35:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208928279] [2023-08-25 19:35:31,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:31,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:35:31,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:35:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:35:31,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:31,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 136 transitions, 907 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:31,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:31,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:31,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:35,194 INFO L124 PetriNetUnfolderBase]: 26229/39468 cut-off events. [2023-08-25 19:35:35,194 INFO L125 PetriNetUnfolderBase]: For 64733/64733 co-relation queries the response was YES. [2023-08-25 19:35:35,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131153 conditions, 39468 events. 26229/39468 cut-off events. For 64733/64733 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 252629 event pairs, 10629 based on Foata normal form. 270/39738 useless extension candidates. Maximal degree in co-relation 131121. Up to 33560 conditions per place. [2023-08-25 19:35:35,474 INFO L140 encePairwiseOnDemand]: 658/671 looper letters, 221 selfloop transitions, 29 changer transitions 6/256 dead transitions. [2023-08-25 19:35:35,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 256 transitions, 2005 flow [2023-08-25 19:35:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:35:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:35:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1726 transitions. [2023-08-25 19:35:35,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3674685969767937 [2023-08-25 19:35:35,478 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1726 transitions. [2023-08-25 19:35:35,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1726 transitions. [2023-08-25 19:35:35,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:35,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1726 transitions. [2023-08-25 19:35:35,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.57142857142858) internal successors, (1726), 7 states have internal predecessors, (1726), 0 states have call successors, (0), 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 19:35:35,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:35,488 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:35,488 INFO L175 Difference]: Start difference. First operand has 114 places, 136 transitions, 907 flow. Second operand 7 states and 1726 transitions. [2023-08-25 19:35:35,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 256 transitions, 2005 flow [2023-08-25 19:35:35,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 256 transitions, 1963 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-25 19:35:36,001 INFO L231 Difference]: Finished difference. Result has 121 places, 157 transitions, 1135 flow [2023-08-25 19:35:36,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1135, PETRI_PLACES=121, PETRI_TRANSITIONS=157} [2023-08-25 19:35:36,001 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -52 predicate places. [2023-08-25 19:35:36,002 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 157 transitions, 1135 flow [2023-08-25 19:35:36,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:36,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:36,002 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] [2023-08-25 19:35:36,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:35:36,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:36,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash 636298030, now seen corresponding path program 10 times [2023-08-25 19:35:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43684781] [2023-08-25 19:35:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:36,639 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 19:35:36,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:36,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43684781] [2023-08-25 19:35:36,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43684781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:36,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:36,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:35:36,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181871529] [2023-08-25 19:35:36,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:36,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:35:36,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:35:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:35:36,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:36,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 157 transitions, 1135 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:36,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:36,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:36,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:43,164 INFO L124 PetriNetUnfolderBase]: 39724/60359 cut-off events. [2023-08-25 19:35:43,164 INFO L125 PetriNetUnfolderBase]: For 128587/128587 co-relation queries the response was YES. [2023-08-25 19:35:43,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209988 conditions, 60359 events. 39724/60359 cut-off events. For 128587/128587 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 416468 event pairs, 12402 based on Foata normal form. 270/60629 useless extension candidates. Maximal degree in co-relation 209951. Up to 24272 conditions per place. [2023-08-25 19:35:43,623 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 306 selfloop transitions, 64 changer transitions 4/374 dead transitions. [2023-08-25 19:35:43,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 374 transitions, 3122 flow [2023-08-25 19:35:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:35:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:35:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1767 transitions. [2023-08-25 19:35:43,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3761975729188844 [2023-08-25 19:35:43,627 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1767 transitions. [2023-08-25 19:35:43,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1767 transitions. [2023-08-25 19:35:43,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:43,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1767 transitions. [2023-08-25 19:35:43,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.42857142857142) internal successors, (1767), 7 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) [2023-08-25 19:35:43,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:43,635 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:35:43,636 INFO L175 Difference]: Start difference. First operand has 121 places, 157 transitions, 1135 flow. Second operand 7 states and 1767 transitions. [2023-08-25 19:35:43,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 374 transitions, 3122 flow [2023-08-25 19:35:44,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 374 transitions, 2996 flow, removed 50 selfloop flow, removed 4 redundant places. [2023-08-25 19:35:44,565 INFO L231 Difference]: Finished difference. Result has 128 places, 174 transitions, 1478 flow [2023-08-25 19:35:44,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1478, PETRI_PLACES=128, PETRI_TRANSITIONS=174} [2023-08-25 19:35:44,565 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -45 predicate places. [2023-08-25 19:35:44,566 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 174 transitions, 1478 flow [2023-08-25 19:35:44,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:35:44,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:44,566 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] [2023-08-25 19:35:44,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:35:44,566 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:44,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:44,567 INFO L85 PathProgramCache]: Analyzing trace with hash -585138816, now seen corresponding path program 11 times [2023-08-25 19:35:44,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:44,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561812570] [2023-08-25 19:35:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:44,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:45,268 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 19:35:45,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:45,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561812570] [2023-08-25 19:35:45,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561812570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:45,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:45,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:35:45,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480871244] [2023-08-25 19:35:45,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:45,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:35:45,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:45,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:35:45,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:35:45,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:45,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 174 transitions, 1478 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:35:45,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:45,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:45,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:35:52,660 INFO L124 PetriNetUnfolderBase]: 44137/66944 cut-off events. [2023-08-25 19:35:52,660 INFO L125 PetriNetUnfolderBase]: For 199405/199405 co-relation queries the response was YES. [2023-08-25 19:35:53,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247334 conditions, 66944 events. 44137/66944 cut-off events. For 199405/199405 co-relation queries the response was YES. Maximal size of possible extension queue 1207. Compared 464111 event pairs, 18447 based on Foata normal form. 266/67210 useless extension candidates. Maximal degree in co-relation 247293. Up to 51457 conditions per place. [2023-08-25 19:35:53,214 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 281 selfloop transitions, 41 changer transitions 6/328 dead transitions. [2023-08-25 19:35:53,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 328 transitions, 3091 flow [2023-08-25 19:35:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:35:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:35:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1965 transitions. [2023-08-25 19:35:53,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3660581222056632 [2023-08-25 19:35:53,218 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1965 transitions. [2023-08-25 19:35:53,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1965 transitions. [2023-08-25 19:35:53,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:35:53,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1965 transitions. [2023-08-25 19:35:53,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 245.625) internal successors, (1965), 8 states have internal predecessors, (1965), 0 states have call successors, (0), 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 19:35:53,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:53,228 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:35:53,228 INFO L175 Difference]: Start difference. First operand has 128 places, 174 transitions, 1478 flow. Second operand 8 states and 1965 transitions. [2023-08-25 19:35:53,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 328 transitions, 3091 flow [2023-08-25 19:35:54,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 328 transitions, 3056 flow, removed 15 selfloop flow, removed 1 redundant places. [2023-08-25 19:35:54,817 INFO L231 Difference]: Finished difference. Result has 137 places, 202 transitions, 1883 flow [2023-08-25 19:35:54,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1883, PETRI_PLACES=137, PETRI_TRANSITIONS=202} [2023-08-25 19:35:54,817 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -36 predicate places. [2023-08-25 19:35:54,817 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 202 transitions, 1883 flow [2023-08-25 19:35:54,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:35:54,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:35:54,818 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] [2023-08-25 19:35:54,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:35:54,818 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:35:54,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:35:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1620884866, now seen corresponding path program 12 times [2023-08-25 19:35:54,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:35:54,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007754879] [2023-08-25 19:35:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:35:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:35:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:35:55,434 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 19:35:55,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:35:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007754879] [2023-08-25 19:35:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007754879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:35:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:35:55,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:35:55,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546509454] [2023-08-25 19:35:55,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:35:55,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:35:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:35:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:35:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:35:55,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:35:55,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 202 transitions, 1883 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 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 19:35:55,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:35:55,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:35:55,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:36:03,753 INFO L124 PetriNetUnfolderBase]: 47840/72573 cut-off events. [2023-08-25 19:36:03,753 INFO L125 PetriNetUnfolderBase]: For 243103/243103 co-relation queries the response was YES. [2023-08-25 19:36:04,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276646 conditions, 72573 events. 47840/72573 cut-off events. For 243103/243103 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 511446 event pairs, 22833 based on Foata normal form. 346/72919 useless extension candidates. Maximal degree in co-relation 276602. Up to 57645 conditions per place. [2023-08-25 19:36:04,440 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 291 selfloop transitions, 35 changer transitions 5/331 dead transitions. [2023-08-25 19:36:04,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 331 transitions, 3399 flow [2023-08-25 19:36:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:36:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:36:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1493 transitions. [2023-08-25 19:36:04,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3708395429706905 [2023-08-25 19:36:04,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1493 transitions. [2023-08-25 19:36:04,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1493 transitions. [2023-08-25 19:36:04,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:36:04,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1493 transitions. [2023-08-25 19:36:04,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.83333333333334) internal successors, (1493), 6 states have internal predecessors, (1493), 0 states have call successors, (0), 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 19:36:04,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 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 19:36:04,449 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 671.0) internal successors, (4697), 7 states have internal predecessors, (4697), 0 states have call successors, (0), 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 19:36:04,449 INFO L175 Difference]: Start difference. First operand has 137 places, 202 transitions, 1883 flow. Second operand 6 states and 1493 transitions. [2023-08-25 19:36:04,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 331 transitions, 3399 flow [2023-08-25 19:36:05,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 331 transitions, 3353 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-25 19:36:05,613 INFO L231 Difference]: Finished difference. Result has 143 places, 220 transitions, 2151 flow [2023-08-25 19:36:05,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=1837, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2151, PETRI_PLACES=143, PETRI_TRANSITIONS=220} [2023-08-25 19:36:05,614 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-08-25 19:36:05,614 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 220 transitions, 2151 flow [2023-08-25 19:36:05,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 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 19:36:05,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:36:05,615 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] [2023-08-25 19:36:05,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:36:05,615 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:36:05,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:36:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -908292636, now seen corresponding path program 13 times [2023-08-25 19:36:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:36:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779004705] [2023-08-25 19:36:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:36:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:36:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:36:06,267 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 19:36:06,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:36:06,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779004705] [2023-08-25 19:36:06,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779004705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:36:06,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:36:06,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:36:06,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885950193] [2023-08-25 19:36:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:36:06,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:36:06,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:36:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:36:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:36:06,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:36:06,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 220 transitions, 2151 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:36:06,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:36:06,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:36:06,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:36:15,980 INFO L124 PetriNetUnfolderBase]: 54504/82701 cut-off events. [2023-08-25 19:36:15,980 INFO L125 PetriNetUnfolderBase]: For 306348/306348 co-relation queries the response was YES. [2023-08-25 19:36:16,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321774 conditions, 82701 events. 54504/82701 cut-off events. For 306348/306348 co-relation queries the response was YES. Maximal size of possible extension queue 1529. Compared 596237 event pairs, 26051 based on Foata normal form. 238/82939 useless extension candidates. Maximal degree in co-relation 321726. Up to 66628 conditions per place. [2023-08-25 19:36:16,738 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 318 selfloop transitions, 40 changer transitions 5/363 dead transitions. [2023-08-25 19:36:16,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 363 transitions, 3816 flow [2023-08-25 19:36:16,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:36:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:36:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1734 transitions. [2023-08-25 19:36:16,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691718117947626 [2023-08-25 19:36:16,742 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1734 transitions. [2023-08-25 19:36:16,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1734 transitions. [2023-08-25 19:36:16,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:36:16,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1734 transitions. [2023-08-25 19:36:16,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 247.71428571428572) internal successors, (1734), 7 states have internal predecessors, (1734), 0 states have call successors, (0), 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 19:36:16,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:36:16,747 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:36:16,747 INFO L175 Difference]: Start difference. First operand has 143 places, 220 transitions, 2151 flow. Second operand 7 states and 1734 transitions. [2023-08-25 19:36:16,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 363 transitions, 3816 flow [2023-08-25 19:36:18,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 363 transitions, 3780 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-08-25 19:36:18,456 INFO L231 Difference]: Finished difference. Result has 152 places, 229 transitions, 2365 flow [2023-08-25 19:36:18,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2115, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2365, PETRI_PLACES=152, PETRI_TRANSITIONS=229} [2023-08-25 19:36:18,456 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -21 predicate places. [2023-08-25 19:36:18,456 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 229 transitions, 2365 flow [2023-08-25 19:36:18,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:36:18,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:36:18,457 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] [2023-08-25 19:36:18,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:36:18,457 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:36:18,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:36:18,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2138070636, now seen corresponding path program 14 times [2023-08-25 19:36:18,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:36:18,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267272007] [2023-08-25 19:36:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:36:18,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:36:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:36:18,960 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 19:36:18,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:36:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267272007] [2023-08-25 19:36:18,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267272007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:36:18,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:36:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:36:18,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219663478] [2023-08-25 19:36:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:36:18,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:36:18,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:36:18,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:36:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:36:18,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:36:18,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 229 transitions, 2365 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:36:18,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:36:18,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:36:18,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:36:30,221 INFO L124 PetriNetUnfolderBase]: 57106/86715 cut-off events. [2023-08-25 19:36:30,221 INFO L125 PetriNetUnfolderBase]: For 346713/346713 co-relation queries the response was YES. [2023-08-25 19:36:30,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342439 conditions, 86715 events. 57106/86715 cut-off events. For 346713/346713 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 630231 event pairs, 32207 based on Foata normal form. 72/86787 useless extension candidates. Maximal degree in co-relation 342387. Up to 79892 conditions per place. [2023-08-25 19:36:31,037 INFO L140 encePairwiseOnDemand]: 659/671 looper letters, 325 selfloop transitions, 44 changer transitions 19/388 dead transitions. [2023-08-25 19:36:31,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 388 transitions, 4053 flow [2023-08-25 19:36:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 19:36:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 19:36:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2443 transitions. [2023-08-25 19:36:31,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36408345752608046 [2023-08-25 19:36:31,041 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2443 transitions. [2023-08-25 19:36:31,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2443 transitions. [2023-08-25 19:36:31,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:36:31,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2443 transitions. [2023-08-25 19:36:31,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 244.3) internal successors, (2443), 10 states have internal predecessors, (2443), 0 states have call successors, (0), 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 19:36:31,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 671.0) internal successors, (7381), 11 states have internal predecessors, (7381), 0 states have call successors, (0), 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 19:36:31,049 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 671.0) internal successors, (7381), 11 states have internal predecessors, (7381), 0 states have call successors, (0), 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 19:36:31,049 INFO L175 Difference]: Start difference. First operand has 152 places, 229 transitions, 2365 flow. Second operand 10 states and 2443 transitions. [2023-08-25 19:36:31,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 388 transitions, 4053 flow [2023-08-25 19:36:33,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 388 transitions, 3996 flow, removed 12 selfloop flow, removed 2 redundant places. [2023-08-25 19:36:33,089 INFO L231 Difference]: Finished difference. Result has 164 places, 252 transitions, 2707 flow [2023-08-25 19:36:33,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2308, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2707, PETRI_PLACES=164, PETRI_TRANSITIONS=252} [2023-08-25 19:36:33,090 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2023-08-25 19:36:33,090 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 252 transitions, 2707 flow [2023-08-25 19:36:33,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:36:33,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:36:33,090 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] [2023-08-25 19:36:33,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:36:33,091 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:36:33,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:36:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash 707711420, now seen corresponding path program 15 times [2023-08-25 19:36:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:36:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807341896] [2023-08-25 19:36:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:36:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:36:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:36:33,590 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 19:36:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:36:33,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807341896] [2023-08-25 19:36:33,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807341896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:36:33,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:36:33,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:36:33,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347410468] [2023-08-25 19:36:33,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:36:33,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:36:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:36:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:36:33,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:36:33,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:36:33,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 252 transitions, 2707 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:36:33,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:36:33,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:36:33,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:36:46,603 INFO L124 PetriNetUnfolderBase]: 62687/95000 cut-off events. [2023-08-25 19:36:46,603 INFO L125 PetriNetUnfolderBase]: For 459055/459055 co-relation queries the response was YES. [2023-08-25 19:36:47,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388477 conditions, 95000 events. 62687/95000 cut-off events. For 459055/459055 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 697449 event pairs, 29655 based on Foata normal form. 56/95056 useless extension candidates. Maximal degree in co-relation 388420. Up to 78098 conditions per place. [2023-08-25 19:36:47,596 INFO L140 encePairwiseOnDemand]: 657/671 looper letters, 479 selfloop transitions, 80 changer transitions 30/589 dead transitions. [2023-08-25 19:36:47,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 589 transitions, 6129 flow [2023-08-25 19:36:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 19:36:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 19:36:47,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3004 transitions. [2023-08-25 19:36:47,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730750124192747 [2023-08-25 19:36:47,599 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3004 transitions. [2023-08-25 19:36:47,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3004 transitions. [2023-08-25 19:36:47,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:36:47,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3004 transitions. [2023-08-25 19:36:47,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 250.33333333333334) internal successors, (3004), 12 states have internal predecessors, (3004), 0 states have call successors, (0), 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 19:36:47,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 671.0) internal successors, (8723), 13 states have internal predecessors, (8723), 0 states have call successors, (0), 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 19:36:47,606 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 671.0) internal successors, (8723), 13 states have internal predecessors, (8723), 0 states have call successors, (0), 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 19:36:47,607 INFO L175 Difference]: Start difference. First operand has 164 places, 252 transitions, 2707 flow. Second operand 12 states and 3004 transitions. [2023-08-25 19:36:47,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 589 transitions, 6129 flow [2023-08-25 19:36:49,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 589 transitions, 6045 flow, removed 33 selfloop flow, removed 3 redundant places. [2023-08-25 19:36:49,995 INFO L231 Difference]: Finished difference. Result has 181 places, 291 transitions, 3409 flow [2023-08-25 19:36:49,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=2627, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3409, PETRI_PLACES=181, PETRI_TRANSITIONS=291} [2023-08-25 19:36:49,996 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 8 predicate places. [2023-08-25 19:36:49,996 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 291 transitions, 3409 flow [2023-08-25 19:36:49,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:36:49,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:36:49,997 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] [2023-08-25 19:36:49,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:36:49,997 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:36:49,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:36:49,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1922582888, now seen corresponding path program 16 times [2023-08-25 19:36:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:36:49,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467696439] [2023-08-25 19:36:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:36:49,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:36:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:36:50,537 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 19:36:50,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:36:50,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467696439] [2023-08-25 19:36:50,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467696439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:36:50,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:36:50,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:36:50,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708647353] [2023-08-25 19:36:50,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:36:50,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:36:50,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:36:50,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:36:50,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:36:50,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:36:50,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 291 transitions, 3409 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:36:50,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:36:50,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:36:50,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:37:07,064 INFO L124 PetriNetUnfolderBase]: 64668/98459 cut-off events. [2023-08-25 19:37:07,064 INFO L125 PetriNetUnfolderBase]: For 601449/601449 co-relation queries the response was YES. [2023-08-25 19:37:08,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429261 conditions, 98459 events. 64668/98459 cut-off events. For 601449/601449 co-relation queries the response was YES. Maximal size of possible extension queue 1782. Compared 731101 event pairs, 32101 based on Foata normal form. 72/98531 useless extension candidates. Maximal degree in co-relation 429194. Up to 78602 conditions per place. [2023-08-25 19:37:08,334 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 359 selfloop transitions, 57 changer transitions 26/442 dead transitions. [2023-08-25 19:37:08,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 442 transitions, 5451 flow [2023-08-25 19:37:08,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:37:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:37:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1742 transitions. [2023-08-25 19:37:08,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37087502661273153 [2023-08-25 19:37:08,336 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1742 transitions. [2023-08-25 19:37:08,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1742 transitions. [2023-08-25 19:37:08,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:37:08,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1742 transitions. [2023-08-25 19:37:08,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 248.85714285714286) internal successors, (1742), 7 states have internal predecessors, (1742), 0 states have call successors, (0), 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 19:37:08,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:37:08,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:37:08,341 INFO L175 Difference]: Start difference. First operand has 181 places, 291 transitions, 3409 flow. Second operand 7 states and 1742 transitions. [2023-08-25 19:37:08,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 442 transitions, 5451 flow [2023-08-25 19:37:11,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 442 transitions, 5321 flow, removed 63 selfloop flow, removed 2 redundant places. [2023-08-25 19:37:12,007 INFO L231 Difference]: Finished difference. Result has 187 places, 298 transitions, 3621 flow [2023-08-25 19:37:12,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=3305, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3621, PETRI_PLACES=187, PETRI_TRANSITIONS=298} [2023-08-25 19:37:12,008 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 14 predicate places. [2023-08-25 19:37:12,008 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 298 transitions, 3621 flow [2023-08-25 19:37:12,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:37:12,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:37:12,008 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] [2023-08-25 19:37:12,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:37:12,009 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:37:12,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:37:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash 548435576, now seen corresponding path program 17 times [2023-08-25 19:37:12,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:37:12,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852988896] [2023-08-25 19:37:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:37:12,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:37:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:37:12,458 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 19:37:12,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:37:12,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852988896] [2023-08-25 19:37:12,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852988896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:37:12,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:37:12,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:37:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091688928] [2023-08-25 19:37:12,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:37:12,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:37:12,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:37:12,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:37:12,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:37:12,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:37:12,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 298 transitions, 3621 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:37:12,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:37:12,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:37:12,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:37:27,693 INFO L124 PetriNetUnfolderBase]: 66275/100908 cut-off events. [2023-08-25 19:37:27,693 INFO L125 PetriNetUnfolderBase]: For 653455/653455 co-relation queries the response was YES. [2023-08-25 19:37:28,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447613 conditions, 100908 events. 66275/100908 cut-off events. For 653455/653455 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 755691 event pairs, 33454 based on Foata normal form. 268/101176 useless extension candidates. Maximal degree in co-relation 447543. Up to 91481 conditions per place. [2023-08-25 19:37:29,099 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 395 selfloop transitions, 46 changer transitions 27/468 dead transitions. [2023-08-25 19:37:29,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 468 transitions, 6088 flow [2023-08-25 19:37:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:37:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:37:29,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1965 transitions. [2023-08-25 19:37:29,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3660581222056632 [2023-08-25 19:37:29,102 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1965 transitions. [2023-08-25 19:37:29,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1965 transitions. [2023-08-25 19:37:29,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:37:29,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1965 transitions. [2023-08-25 19:37:29,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 245.625) internal successors, (1965), 8 states have internal predecessors, (1965), 0 states have call successors, (0), 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 19:37:29,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:37:29,108 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:37:29,108 INFO L175 Difference]: Start difference. First operand has 187 places, 298 transitions, 3621 flow. Second operand 8 states and 1965 transitions. [2023-08-25 19:37:29,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 468 transitions, 6088 flow [2023-08-25 19:37:32,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 468 transitions, 6027 flow, removed 21 selfloop flow, removed 2 redundant places. [2023-08-25 19:37:32,741 INFO L231 Difference]: Finished difference. Result has 198 places, 321 transitions, 4120 flow [2023-08-25 19:37:32,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=3567, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4120, PETRI_PLACES=198, PETRI_TRANSITIONS=321} [2023-08-25 19:37:32,741 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 25 predicate places. [2023-08-25 19:37:32,741 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 321 transitions, 4120 flow [2023-08-25 19:37:32,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:37:32,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:37:32,742 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] [2023-08-25 19:37:32,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:37:32,742 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:37:32,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:37:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1818311804, now seen corresponding path program 18 times [2023-08-25 19:37:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:37:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542296177] [2023-08-25 19:37:32,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:37:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:37:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:37:32,975 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 19:37:32,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:37:32,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542296177] [2023-08-25 19:37:32,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542296177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:37:32,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:37:32,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:37:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936180399] [2023-08-25 19:37:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:37:32,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:37:32,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:37:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:37:32,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:37:32,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 19:37:32,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 321 transitions, 4120 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:37:32,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:37:32,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 19:37:32,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:37:50,640 INFO L124 PetriNetUnfolderBase]: 67741/103762 cut-off events. [2023-08-25 19:37:50,640 INFO L125 PetriNetUnfolderBase]: For 852570/852570 co-relation queries the response was YES. [2023-08-25 19:37:51,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489255 conditions, 103762 events. 67741/103762 cut-off events. For 852570/852570 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 785870 event pairs, 30265 based on Foata normal form. 4/103766 useless extension candidates. Maximal degree in co-relation 489178. Up to 44302 conditions per place. [2023-08-25 19:37:52,163 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 689 selfloop transitions, 25 changer transitions 140/854 dead transitions. [2023-08-25 19:37:52,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 854 transitions, 11884 flow [2023-08-25 19:37:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 19:37:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 19:37:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2703 transitions. [2023-08-25 19:37:52,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3662105405771576 [2023-08-25 19:37:52,165 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2703 transitions. [2023-08-25 19:37:52,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2703 transitions. [2023-08-25 19:37:52,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:37:52,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2703 transitions. [2023-08-25 19:37:52,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 245.72727272727272) internal successors, (2703), 11 states have internal predecessors, (2703), 0 states have call successors, (0), 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 19:37:52,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:37:52,173 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:37:52,173 INFO L175 Difference]: Start difference. First operand has 198 places, 321 transitions, 4120 flow. Second operand 11 states and 2703 transitions. [2023-08-25 19:37:52,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 854 transitions, 11884 flow [2023-08-25 19:37:56,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 854 transitions, 11812 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-25 19:37:56,897 INFO L231 Difference]: Finished difference. Result has 212 places, 336 transitions, 4255 flow [2023-08-25 19:37:56,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4074, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4255, PETRI_PLACES=212, PETRI_TRANSITIONS=336} [2023-08-25 19:37:56,898 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 39 predicate places. [2023-08-25 19:37:56,898 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 336 transitions, 4255 flow [2023-08-25 19:37:56,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:37:56,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:37:56,899 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] [2023-08-25 19:37:56,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:37:56,899 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:37:56,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:37:56,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1543922410, now seen corresponding path program 19 times [2023-08-25 19:37:56,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:37:56,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765985618] [2023-08-25 19:37:56,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:37:56,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:37:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:37:57,408 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 19:37:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:37:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765985618] [2023-08-25 19:37:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765985618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:37:57,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:37:57,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:37:57,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088953111] [2023-08-25 19:37:57,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:37:57,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:37:57,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:37:57,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:37:57,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:37:57,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:37:57,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 336 transitions, 4255 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:37:57,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:37:57,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:37:57,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:38:16,297 INFO L124 PetriNetUnfolderBase]: 70947/108502 cut-off events. [2023-08-25 19:38:16,297 INFO L125 PetriNetUnfolderBase]: For 880857/880857 co-relation queries the response was YES. [2023-08-25 19:38:18,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517750 conditions, 108502 events. 70947/108502 cut-off events. For 880857/880857 co-relation queries the response was YES. Maximal size of possible extension queue 1959. Compared 820578 event pairs, 34958 based on Foata normal form. 674/109176 useless extension candidates. Maximal degree in co-relation 517667. Up to 89630 conditions per place. [2023-08-25 19:38:18,391 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 388 selfloop transitions, 79 changer transitions 22/489 dead transitions. [2023-08-25 19:38:18,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 489 transitions, 6593 flow [2023-08-25 19:38:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:38:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:38:18,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2194 transitions. [2023-08-25 19:38:18,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3633051829773141 [2023-08-25 19:38:18,394 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2194 transitions. [2023-08-25 19:38:18,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2194 transitions. [2023-08-25 19:38:18,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:38:18,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2194 transitions. [2023-08-25 19:38:18,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 243.77777777777777) internal successors, (2194), 9 states have internal predecessors, (2194), 0 states have call successors, (0), 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 19:38:18,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:38:18,400 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:38:18,400 INFO L175 Difference]: Start difference. First operand has 212 places, 336 transitions, 4255 flow. Second operand 9 states and 2194 transitions. [2023-08-25 19:38:18,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 489 transitions, 6593 flow [2023-08-25 19:38:24,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 489 transitions, 6577 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-08-25 19:38:24,657 INFO L231 Difference]: Finished difference. Result has 221 places, 342 transitions, 4631 flow [2023-08-25 19:38:24,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4229, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4631, PETRI_PLACES=221, PETRI_TRANSITIONS=342} [2023-08-25 19:38:24,657 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 48 predicate places. [2023-08-25 19:38:24,657 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 342 transitions, 4631 flow [2023-08-25 19:38:24,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:38:24,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:38:24,658 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] [2023-08-25 19:38:24,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:38:24,658 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:38:24,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:38:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -537558378, now seen corresponding path program 20 times [2023-08-25 19:38:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:38:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063894229] [2023-08-25 19:38:24,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:38:24,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:38:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:38:25,129 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 19:38:25,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:38:25,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063894229] [2023-08-25 19:38:25,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063894229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:38:25,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:38:25,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:38:25,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106695937] [2023-08-25 19:38:25,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:38:25,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:38:25,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:38:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:38:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:38:25,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:38:25,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 342 transitions, 4631 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:38:25,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:38:25,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:38:25,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:38:46,836 INFO L124 PetriNetUnfolderBase]: 70803/108270 cut-off events. [2023-08-25 19:38:46,836 INFO L125 PetriNetUnfolderBase]: For 939321/939321 co-relation queries the response was YES. [2023-08-25 19:38:48,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524629 conditions, 108270 events. 70803/108270 cut-off events. For 939321/939321 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 818520 event pairs, 40719 based on Foata normal form. 144/108414 useless extension candidates. Maximal degree in co-relation 524542. Up to 105101 conditions per place. [2023-08-25 19:38:48,667 INFO L140 encePairwiseOnDemand]: 662/671 looper letters, 404 selfloop transitions, 27 changer transitions 1/432 dead transitions. [2023-08-25 19:38:48,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 432 transitions, 6091 flow [2023-08-25 19:38:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:38:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:38:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2164 transitions. [2023-08-25 19:38:48,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35833747309157143 [2023-08-25 19:38:48,671 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2164 transitions. [2023-08-25 19:38:48,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2164 transitions. [2023-08-25 19:38:48,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:38:48,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2164 transitions. [2023-08-25 19:38:48,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 240.44444444444446) internal successors, (2164), 9 states have internal predecessors, (2164), 0 states have call successors, (0), 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 19:38:48,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:38:48,678 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:38:48,678 INFO L175 Difference]: Start difference. First operand has 221 places, 342 transitions, 4631 flow. Second operand 9 states and 2164 transitions. [2023-08-25 19:38:48,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 432 transitions, 6091 flow [2023-08-25 19:38:57,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 432 transitions, 5977 flow, removed 57 selfloop flow, removed 0 redundant places. [2023-08-25 19:38:57,996 INFO L231 Difference]: Finished difference. Result has 231 places, 347 transitions, 4663 flow [2023-08-25 19:38:57,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4531, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4663, PETRI_PLACES=231, PETRI_TRANSITIONS=347} [2023-08-25 19:38:57,996 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 58 predicate places. [2023-08-25 19:38:57,997 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 347 transitions, 4663 flow [2023-08-25 19:38:57,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:38:57,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:38:57,997 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] [2023-08-25 19:38:57,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:38:57,997 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:38:57,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:38:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash 685425842, now seen corresponding path program 21 times [2023-08-25 19:38:57,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:38:57,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376194480] [2023-08-25 19:38:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:38:57,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:38:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:38:58,480 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 19:38:58,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:38:58,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376194480] [2023-08-25 19:38:58,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376194480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:38:58,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:38:58,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:38:58,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319909702] [2023-08-25 19:38:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:38:58,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:38:58,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:38:58,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:38:58,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-25 19:38:58,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:38:58,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 347 transitions, 4663 flow. Second operand has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:38:58,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:38:58,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:38:58,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:39:18,393 INFO L124 PetriNetUnfolderBase]: 70733/108184 cut-off events. [2023-08-25 19:39:18,394 INFO L125 PetriNetUnfolderBase]: For 911463/911463 co-relation queries the response was YES. [2023-08-25 19:39:20,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523781 conditions, 108184 events. 70733/108184 cut-off events. For 911463/911463 co-relation queries the response was YES. Maximal size of possible extension queue 1943. Compared 816631 event pairs, 40475 based on Foata normal form. 40/108224 useless extension candidates. Maximal degree in co-relation 523691. Up to 105405 conditions per place. [2023-08-25 19:39:20,335 INFO L140 encePairwiseOnDemand]: 662/671 looper letters, 395 selfloop transitions, 28 changer transitions 4/427 dead transitions. [2023-08-25 19:39:20,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 427 transitions, 6095 flow [2023-08-25 19:39:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 19:39:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 19:39:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1699 transitions. [2023-08-25 19:39:20,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36172024696614863 [2023-08-25 19:39:20,337 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1699 transitions. [2023-08-25 19:39:20,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1699 transitions. [2023-08-25 19:39:20,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:39:20,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1699 transitions. [2023-08-25 19:39:20,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 242.71428571428572) internal successors, (1699), 7 states have internal predecessors, (1699), 0 states have call successors, (0), 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 19:39:20,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:39:20,343 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 671.0) internal successors, (5368), 8 states have internal predecessors, (5368), 0 states have call successors, (0), 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 19:39:20,343 INFO L175 Difference]: Start difference. First operand has 231 places, 347 transitions, 4663 flow. Second operand 7 states and 1699 transitions. [2023-08-25 19:39:20,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 427 transitions, 6095 flow [2023-08-25 19:39:28,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 427 transitions, 6034 flow, removed 14 selfloop flow, removed 4 redundant places. [2023-08-25 19:39:28,461 INFO L231 Difference]: Finished difference. Result has 235 places, 348 transitions, 4708 flow [2023-08-25 19:39:28,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4601, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4708, PETRI_PLACES=235, PETRI_TRANSITIONS=348} [2023-08-25 19:39:28,462 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 62 predicate places. [2023-08-25 19:39:28,462 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 348 transitions, 4708 flow [2023-08-25 19:39:28,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 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 19:39:28,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:39:28,462 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] [2023-08-25 19:39:28,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:39:28,463 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:39:28,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:39:28,463 INFO L85 PathProgramCache]: Analyzing trace with hash -977035078, now seen corresponding path program 22 times [2023-08-25 19:39:28,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:39:28,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637572845] [2023-08-25 19:39:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:39:28,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:39:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:39:28,975 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 19:39:28,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:39:28,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637572845] [2023-08-25 19:39:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637572845] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:39:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:39:28,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:39:28,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075489699] [2023-08-25 19:39:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:39:28,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:39:28,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:39:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:39:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:39:28,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:39:28,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 348 transitions, 4708 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:39:28,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:39:28,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:39:28,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:39:48,947 INFO L124 PetriNetUnfolderBase]: 70630/108021 cut-off events. [2023-08-25 19:39:48,948 INFO L125 PetriNetUnfolderBase]: For 933555/933555 co-relation queries the response was YES. [2023-08-25 19:39:50,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527919 conditions, 108021 events. 70630/108021 cut-off events. For 933555/933555 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 816679 event pairs, 40349 based on Foata normal form. 28/108049 useless extension candidates. Maximal degree in co-relation 527828. Up to 105129 conditions per place. [2023-08-25 19:39:50,912 INFO L140 encePairwiseOnDemand]: 660/671 looper letters, 393 selfloop transitions, 24 changer transitions 13/430 dead transitions. [2023-08-25 19:39:50,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 430 transitions, 6102 flow [2023-08-25 19:39:50,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:39:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:39:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1937 transitions. [2023-08-25 19:39:50,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3608420268256334 [2023-08-25 19:39:50,914 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1937 transitions. [2023-08-25 19:39:50,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1937 transitions. [2023-08-25 19:39:50,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:39:50,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1937 transitions. [2023-08-25 19:39:50,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 242.125) internal successors, (1937), 8 states have internal predecessors, (1937), 0 states have call successors, (0), 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 19:39:50,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:39:50,918 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 671.0) internal successors, (6039), 9 states have internal predecessors, (6039), 0 states have call successors, (0), 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 19:39:50,919 INFO L175 Difference]: Start difference. First operand has 235 places, 348 transitions, 4708 flow. Second operand 8 states and 1937 transitions. [2023-08-25 19:39:50,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 430 transitions, 6102 flow [2023-08-25 19:39:59,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 430 transitions, 6040 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-08-25 19:39:59,394 INFO L231 Difference]: Finished difference. Result has 238 places, 348 transitions, 4718 flow [2023-08-25 19:39:59,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4651, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4718, PETRI_PLACES=238, PETRI_TRANSITIONS=348} [2023-08-25 19:39:59,395 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 65 predicate places. [2023-08-25 19:39:59,395 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 348 transitions, 4718 flow [2023-08-25 19:39:59,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:39:59,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:39:59,395 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] [2023-08-25 19:39:59,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:39:59,395 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:39:59,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:39:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash -997957992, now seen corresponding path program 23 times [2023-08-25 19:39:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:39:59,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853917793] [2023-08-25 19:39:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:39:59,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:39:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:39:59,872 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 19:39:59,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:39:59,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853917793] [2023-08-25 19:39:59,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853917793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:39:59,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:39:59,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 19:39:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047341014] [2023-08-25 19:39:59,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:39:59,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:39:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:39:59,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:39:59,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:39:59,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:39:59,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 348 transitions, 4718 flow. Second operand has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:39:59,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:39:59,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:39:59,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:19,734 INFO L124 PetriNetUnfolderBase]: 70144/107301 cut-off events. [2023-08-25 19:40:19,734 INFO L125 PetriNetUnfolderBase]: For 924570/924570 co-relation queries the response was YES. [2023-08-25 19:40:21,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522638 conditions, 107301 events. 70144/107301 cut-off events. For 924570/924570 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 810824 event pairs, 40347 based on Foata normal form. 28/107329 useless extension candidates. Maximal degree in co-relation 522546. Up to 105031 conditions per place. [2023-08-25 19:40:21,686 INFO L140 encePairwiseOnDemand]: 661/671 looper letters, 374 selfloop transitions, 14 changer transitions 48/436 dead transitions. [2023-08-25 19:40:21,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 436 transitions, 6132 flow [2023-08-25 19:40:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:40:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:40:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2165 transitions. [2023-08-25 19:40:21,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3585030634210962 [2023-08-25 19:40:21,689 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2165 transitions. [2023-08-25 19:40:21,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2165 transitions. [2023-08-25 19:40:21,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:21,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2165 transitions. [2023-08-25 19:40:21,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 240.55555555555554) internal successors, (2165), 9 states have internal predecessors, (2165), 0 states have call successors, (0), 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 19:40:21,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:40:21,695 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:40:21,695 INFO L175 Difference]: Start difference. First operand has 238 places, 348 transitions, 4718 flow. Second operand 9 states and 2165 transitions. [2023-08-25 19:40:21,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 436 transitions, 6132 flow [2023-08-25 19:40:31,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 436 transitions, 6061 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-25 19:40:31,976 INFO L231 Difference]: Finished difference. Result has 245 places, 344 transitions, 4618 flow [2023-08-25 19:40:31,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4666, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4618, PETRI_PLACES=245, PETRI_TRANSITIONS=344} [2023-08-25 19:40:31,976 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 72 predicate places. [2023-08-25 19:40:31,976 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 344 transitions, 4618 flow [2023-08-25 19:40:31,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 229.44444444444446) internal successors, (2065), 9 states have internal predecessors, (2065), 0 states have call successors, (0), 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 19:40:31,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:31,977 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] [2023-08-25 19:40:31,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:40:31,977 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:40:31,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2139365652, now seen corresponding path program 24 times [2023-08-25 19:40:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:31,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504449060] [2023-08-25 19:40:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:31,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:32,518 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 19:40:32,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:32,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504449060] [2023-08-25 19:40:32,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504449060] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:32,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:32,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:40:32,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692939357] [2023-08-25 19:40:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:32,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:40:32,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:32,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:40:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:40:32,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 671 [2023-08-25 19:40:32,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 344 transitions, 4618 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:40:32,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:32,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 671 [2023-08-25 19:40:32,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:53,863 INFO L124 PetriNetUnfolderBase]: 74380/114527 cut-off events. [2023-08-25 19:40:53,863 INFO L125 PetriNetUnfolderBase]: For 1060014/1060014 co-relation queries the response was YES. [2023-08-25 19:40:55,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559227 conditions, 114527 events. 74380/114527 cut-off events. For 1060014/1060014 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 881187 event pairs, 25129 based on Foata normal form. 238/114765 useless extension candidates. Maximal degree in co-relation 559132. Up to 52914 conditions per place. [2023-08-25 19:40:56,116 INFO L140 encePairwiseOnDemand]: 657/671 looper letters, 451 selfloop transitions, 124 changer transitions 16/591 dead transitions. [2023-08-25 19:40:56,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 591 transitions, 7880 flow [2023-08-25 19:40:56,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 19:40:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 19:40:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2253 transitions. [2023-08-25 19:40:56,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730750124192747 [2023-08-25 19:40:56,119 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2253 transitions. [2023-08-25 19:40:56,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2253 transitions. [2023-08-25 19:40:56,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:56,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2253 transitions. [2023-08-25 19:40:56,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 250.33333333333334) internal successors, (2253), 9 states have internal predecessors, (2253), 0 states have call successors, (0), 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 19:40:56,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:40:56,125 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 671.0) internal successors, (6710), 10 states have internal predecessors, (6710), 0 states have call successors, (0), 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 19:40:56,125 INFO L175 Difference]: Start difference. First operand has 245 places, 344 transitions, 4618 flow. Second operand 9 states and 2253 transitions. [2023-08-25 19:40:56,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 591 transitions, 7880 flow [2023-08-25 19:41:04,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 591 transitions, 7804 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-25 19:41:04,734 INFO L231 Difference]: Finished difference. Result has 245 places, 364 transitions, 5411 flow [2023-08-25 19:41:04,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=4550, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5411, PETRI_PLACES=245, PETRI_TRANSITIONS=364} [2023-08-25 19:41:04,735 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 72 predicate places. [2023-08-25 19:41:04,735 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 364 transitions, 5411 flow [2023-08-25 19:41:04,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 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 19:41:04,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:04,735 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] [2023-08-25 19:41:04,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:41:04,735 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:41:04,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 86696492, now seen corresponding path program 25 times [2023-08-25 19:41:04,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182025016] [2023-08-25 19:41:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:04,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:04,944 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 19:41:04,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:04,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182025016] [2023-08-25 19:41:04,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182025016] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:41:04,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:41:04,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 19:41:04,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257497498] [2023-08-25 19:41:04,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:04,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 19:41:04,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:04,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 19:41:04,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-08-25 19:41:04,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 671 [2023-08-25 19:41:04,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 364 transitions, 5411 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:41:04,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:04,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 671 [2023-08-25 19:41:04,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:28,450 INFO L124 PetriNetUnfolderBase]: 75144/116031 cut-off events. [2023-08-25 19:41:28,450 INFO L125 PetriNetUnfolderBase]: For 1245576/1245576 co-relation queries the response was YES. [2023-08-25 19:41:30,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594995 conditions, 116031 events. 75144/116031 cut-off events. For 1245576/1245576 co-relation queries the response was YES. Maximal size of possible extension queue 1999. Compared 902271 event pairs, 34407 based on Foata normal form. 8/116039 useless extension candidates. Maximal degree in co-relation 594898. Up to 49938 conditions per place. [2023-08-25 19:41:30,525 INFO L140 encePairwiseOnDemand]: 663/671 looper letters, 729 selfloop transitions, 31 changer transitions 113/873 dead transitions. [2023-08-25 19:41:30,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 873 transitions, 14141 flow [2023-08-25 19:41:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 19:41:30,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 19:41:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2696 transitions. [2023-08-25 19:41:30,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36526215959897035 [2023-08-25 19:41:30,528 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2696 transitions. [2023-08-25 19:41:30,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2696 transitions. [2023-08-25 19:41:30,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:30,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2696 transitions. [2023-08-25 19:41:30,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 245.0909090909091) internal successors, (2696), 11 states have internal predecessors, (2696), 0 states have call successors, (0), 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 19:41:30,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:41:30,536 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 671.0) internal successors, (8052), 12 states have internal predecessors, (8052), 0 states have call successors, (0), 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 19:41:30,536 INFO L175 Difference]: Start difference. First operand has 245 places, 364 transitions, 5411 flow. Second operand 11 states and 2696 transitions. [2023-08-25 19:41:30,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 873 transitions, 14141 flow [2023-08-25 19:41:46,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 873 transitions, 13537 flow, removed 266 selfloop flow, removed 4 redundant places. [2023-08-25 19:41:46,374 INFO L231 Difference]: Finished difference. Result has 256 places, 371 transitions, 5337 flow [2023-08-25 19:41:46,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=671, PETRI_DIFFERENCE_MINUEND_FLOW=5198, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5337, PETRI_PLACES=256, PETRI_TRANSITIONS=371} [2023-08-25 19:41:46,375 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, 83 predicate places. [2023-08-25 19:41:46,375 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 371 transitions, 5337 flow [2023-08-25 19:41:46,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 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 19:41:46,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:46,375 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] [2023-08-25 19:41:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-25 19:41:46,375 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 207 more)] === [2023-08-25 19:41:46,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2031137436, now seen corresponding path program 26 times [2023-08-25 19:41:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:46,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825166198] [2023-08-25 19:41:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:46,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:46,477 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 19:41:46,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825166198] [2023-08-25 19:41:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825166198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:41:46,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:41:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:41:46,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852286197] [2023-08-25 19:41:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:46,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:41:46,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:41:46,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:41:46,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 671 [2023-08-25 19:41:46,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 371 transitions, 5337 flow. Second operand has 3 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 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) [2023-08-25 19:41:46,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:46,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 671 [2023-08-25 19:41:46,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand