/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:37:28,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:37:29,011 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 [2023-08-24 18:37:29,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:37:29,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:37:29,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:37:29,041 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:37:29,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:37:29,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:37:29,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:37:29,046 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:37:29,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:37:29,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:37:29,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:37:29,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:37:29,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:37:29,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:37:29,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:37:29,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:37:29,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:37:29,048 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:37:29,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:37:29,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:37:29,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:37:29,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:37:29,050 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:37:29,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:37:29,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:37:29,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:37:29,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:37:29,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:37:29,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:37:29,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:37:29,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:37:29,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:37:29,052 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:37:29,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:37:29,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:37:29,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:37:29,343 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:37:29,343 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:37:29,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-08-24 18:37:30,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:37:30,634 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:37:30,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-08-24 18:37:30,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fa3034f/fb4c6c13f1f149d690000051bc147213/FLAGc0246a87a [2023-08-24 18:37:30,664 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fa3034f/fb4c6c13f1f149d690000051bc147213 [2023-08-24 18:37:30,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:37:30,669 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:37:30,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:37:30,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:37:30,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:37:30,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:37:30" (1/1) ... [2023-08-24 18:37:30,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cddf41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:30, skipping insertion in model container [2023-08-24 18:37:30,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:37:30" (1/1) ... [2023-08-24 18:37:30,720 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:37:30,817 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:37:30,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:37:30,951 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:37:30,968 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:37:30,977 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-24 18:37:30,978 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-24 18:37:30,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:37:31,020 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:37:31,021 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:37:31,021 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:37:31,026 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:37:31,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31 WrapperNode [2023-08-24 18:37:31,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:37:31,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:37:31,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:37:31,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:37:31,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,073 INFO L138 Inliner]: procedures = 174, calls = 26, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 127 [2023-08-24 18:37:31,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:37:31,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:37:31,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:37:31,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:37:31,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:37:31,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:37:31,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:37:31,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:37:31,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (1/1) ... [2023-08-24 18:37:31,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:37:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:37:31,127 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) [2023-08-24 18:37:31,132 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 [2023-08-24 18:37:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 18:37:31,153 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 18:37:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:37:31,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 18:37:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:37:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:37:31,156 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:37:31,232 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:37:31,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:37:31,374 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:37:31,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:37:31,464 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-24 18:37:31,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:37:31 BoogieIcfgContainer [2023-08-24 18:37:31,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:37:31,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:37:31,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:37:31,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:37:31,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:37:30" (1/3) ... [2023-08-24 18:37:31,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51965cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:37:31, skipping insertion in model container [2023-08-24 18:37:31,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:37:31" (2/3) ... [2023-08-24 18:37:31,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51965cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:37:31, skipping insertion in model container [2023-08-24 18:37:31,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:37:31" (3/3) ... [2023-08-24 18:37:31,472 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2023-08-24 18:37:31,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:37:31,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-24 18:37:31,485 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:37:31,550 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:37:31,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,599 INFO L124 PetriNetUnfolderBase]: 5/90 cut-off events. [2023-08-24 18:37:31,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:31,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 5/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-08-24 18:37:31,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,609 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:37:31,625 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,632 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions, 165 flow [2023-08-24 18:37:31,650 INFO L124 PetriNetUnfolderBase]: 5/90 cut-off events. [2023-08-24 18:37:31,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:31,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 5/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 65. Up to 4 conditions per place. [2023-08-24 18:37:31,651 INFO L119 LiptonReduction]: Number of co-enabled transitions 1378 [2023-08-24 18:37:33,802 INFO L134 LiptonReduction]: Checked pairs total: 1620 [2023-08-24 18:37:33,803 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-24 18:37:33,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:37:33,817 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;@6cef1cbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:37:33,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-08-24 18:37:33,820 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:37:33,821 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:37:33,821 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:33,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:33,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:33,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:37:33,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash 16456110, now seen corresponding path program 1 times [2023-08-24 18:37:33,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:33,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090928655] [2023-08-24 18:37:33,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:33,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:33,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090928655] [2023-08-24 18:37:33,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090928655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:33,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:33,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330209030] [2023-08-24 18:37:33,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:33,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:37:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:33,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:37:33,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:37:33,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 193 [2023-08-24 18:37:33,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:33,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:33,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 193 [2023-08-24 18:37:33,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:33,960 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-08-24 18:37:33,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:33,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 2 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-24 18:37:33,961 INFO L140 encePairwiseOnDemand]: 176/193 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-08-24 18:37:33,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-24 18:37:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:37:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:37:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 132 transitions. [2023-08-24 18:37:33,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34196891191709844 [2023-08-24 18:37:33,969 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 132 transitions. [2023-08-24 18:37:33,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 132 transitions. [2023-08-24 18:37:33,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:33,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 132 transitions. [2023-08-24 18:37:33,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:33,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:33,976 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:33,977 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 51 flow. Second operand 2 states and 132 transitions. [2023-08-24 18:37:33,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-24 18:37:33,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:33,979 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 17 flow [2023-08-24 18:37:33,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=17, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2023-08-24 18:37:33,982 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -16 predicate places. [2023-08-24 18:37:33,983 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 17 flow [2023-08-24 18:37:33,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:33,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:33,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:33,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:37:33,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err15ASSERT_VIOLATIONASSERT === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:37:33,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:33,984 INFO L85 PathProgramCache]: Analyzing trace with hash 16456166, now seen corresponding path program 1 times [2023-08-24 18:37:33,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:33,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580268052] [2023-08-24 18:37:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:33,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:34,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:34,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580268052] [2023-08-24 18:37:34,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580268052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:34,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:34,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:34,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963888948] [2023-08-24 18:37:34,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:34,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:34,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:34,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:34,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:34,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 193 [2023-08-24 18:37:34,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 17 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:34,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:34,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 193 [2023-08-24 18:37:34,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:34,187 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-24 18:37:34,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:34,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 3/9 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-24 18:37:34,187 INFO L140 encePairwiseOnDemand]: 191/193 looper letters, 3 selfloop transitions, 1 changer transitions 0/5 dead transitions. [2023-08-24 18:37:34,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 5 transitions, 23 flow [2023-08-24 18:37:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2023-08-24 18:37:34,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25734024179620035 [2023-08-24 18:37:34,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2023-08-24 18:37:34,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2023-08-24 18:37:34,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:34,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2023-08-24 18:37:34,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:34,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:34,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:34,192 INFO L175 Difference]: Start difference. First operand has 10 places, 6 transitions, 17 flow. Second operand 3 states and 149 transitions. [2023-08-24 18:37:34,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 5 transitions, 23 flow [2023-08-24 18:37:34,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:34,192 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 17 flow [2023-08-24 18:37:34,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=17, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-08-24 18:37:34,193 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -15 predicate places. [2023-08-24 18:37:34,193 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 17 flow [2023-08-24 18:37:34,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:34,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:34,193 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 18:37:34,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:37:34,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-08-24 18:37:34,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:34,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1365575950, now seen corresponding path program 1 times [2023-08-24 18:37:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:34,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592490107] [2023-08-24 18:37:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:34,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:37:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:34,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:37:34,231 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:37:34,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-08-24 18:37:34,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-08-24 18:37:34,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-08-24 18:37:34,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-08-24 18:37:34,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-08-24 18:37:34,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 33 remaining) [2023-08-24 18:37:34,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:37:34,237 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-24 18:37:34,238 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:37:34,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 18:37:34,255 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:37:34,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,274 INFO L124 PetriNetUnfolderBase]: 9/156 cut-off events. [2023-08-24 18:37:34,274 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:37:34,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 156 events. 9/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 390 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-08-24 18:37:34,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,277 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:37:34,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,277 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 134 transitions, 280 flow [2023-08-24 18:37:34,291 INFO L124 PetriNetUnfolderBase]: 9/156 cut-off events. [2023-08-24 18:37:34,292 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:37:34,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 156 events. 9/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 390 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2023-08-24 18:37:34,295 INFO L119 LiptonReduction]: Number of co-enabled transitions 8480 [2023-08-24 18:37:35,204 INFO L134 LiptonReduction]: Checked pairs total: 38786 [2023-08-24 18:37:35,205 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-24 18:37:35,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:37:35,210 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;@6cef1cbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:37:35,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-08-24 18:37:35,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:37:35,211 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-24 18:37:35,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:35,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:35,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:35,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:37:35,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:35,212 INFO L85 PathProgramCache]: Analyzing trace with hash 25661523, now seen corresponding path program 1 times [2023-08-24 18:37:35,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:35,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980296487] [2023-08-24 18:37:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:35,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:35,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:35,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980296487] [2023-08-24 18:37:35,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980296487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:35,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:35,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310992874] [2023-08-24 18:37:35,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:35,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:37:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:37:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:37:35,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 221 [2023-08-24 18:37:35,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:35,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 221 [2023-08-24 18:37:35,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:35,357 INFO L124 PetriNetUnfolderBase]: 457/1005 cut-off events. [2023-08-24 18:37:35,357 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-24 18:37:35,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 1005 events. 457/1005 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6092 event pairs, 407 based on Foata normal form. 0/914 useless extension candidates. Maximal degree in co-relation 1206. Up to 772 conditions per place. [2023-08-24 18:37:35,364 INFO L140 encePairwiseOnDemand]: 196/221 looper letters, 28 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2023-08-24 18:37:35,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 55 transitions, 178 flow [2023-08-24 18:37:35,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:37:35,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:37:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 225 transitions. [2023-08-24 18:37:35,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5090497737556561 [2023-08-24 18:37:35,368 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 225 transitions. [2023-08-24 18:37:35,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 225 transitions. [2023-08-24 18:37:35,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:35,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 225 transitions. [2023-08-24 18:37:35,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,372 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,372 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 172 flow. Second operand 2 states and 225 transitions. [2023-08-24 18:37:35,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 55 transitions, 178 flow [2023-08-24 18:37:35,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 176 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:35,374 INFO L231 Difference]: Finished difference. Result has 59 places, 55 transitions, 120 flow [2023-08-24 18:37:35,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=120, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2023-08-24 18:37:35,376 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -24 predicate places. [2023-08-24 18:37:35,376 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 120 flow [2023-08-24 18:37:35,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:35,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:37:35,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:37:35,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:37:35,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:35,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1109056874, now seen corresponding path program 1 times [2023-08-24 18:37:35,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:35,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506042035] [2023-08-24 18:37:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:35,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:35,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506042035] [2023-08-24 18:37:35,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506042035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:35,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:35,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:35,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873425170] [2023-08-24 18:37:35,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:35,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:35,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:35,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:35,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 221 [2023-08-24 18:37:35,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:35,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 221 [2023-08-24 18:37:35,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:35,638 INFO L124 PetriNetUnfolderBase]: 1626/3035 cut-off events. [2023-08-24 18:37:35,638 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2023-08-24 18:37:35,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5916 conditions, 3035 events. 1626/3035 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 20943 event pairs, 581 based on Foata normal form. 0/2643 useless extension candidates. Maximal degree in co-relation 5911. Up to 1633 conditions per place. [2023-08-24 18:37:35,653 INFO L140 encePairwiseOnDemand]: 205/221 looper letters, 72 selfloop transitions, 12 changer transitions 0/94 dead transitions. [2023-08-24 18:37:35,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 94 transitions, 371 flow [2023-08-24 18:37:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2023-08-24 18:37:35,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4132730015082956 [2023-08-24 18:37:35,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2023-08-24 18:37:35,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2023-08-24 18:37:35,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:35,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2023-08-24 18:37:35,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,658 INFO L175 Difference]: Start difference. First operand has 59 places, 55 transitions, 120 flow. Second operand 3 states and 274 transitions. [2023-08-24 18:37:35,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 94 transitions, 371 flow [2023-08-24 18:37:35,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 94 transitions, 371 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:35,660 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 224 flow [2023-08-24 18:37:35,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-24 18:37:35,662 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -20 predicate places. [2023-08-24 18:37:35,662 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 224 flow [2023-08-24 18:37:35,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:35,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:37:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:37:35,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:37:35,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 739258941, now seen corresponding path program 1 times [2023-08-24 18:37:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109884278] [2023-08-24 18:37:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:35,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109884278] [2023-08-24 18:37:35,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109884278] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:35,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:35,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:35,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704336687] [2023-08-24 18:37:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:35,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:35,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:35,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:35,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:35,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 221 [2023-08-24 18:37:35,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:35,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 221 [2023-08-24 18:37:35,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:35,978 INFO L124 PetriNetUnfolderBase]: 1681/3106 cut-off events. [2023-08-24 18:37:35,978 INFO L125 PetriNetUnfolderBase]: For 976/984 co-relation queries the response was YES. [2023-08-24 18:37:35,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7181 conditions, 3106 events. 1681/3106 cut-off events. For 976/984 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 21251 event pairs, 1219 based on Foata normal form. 4/2791 useless extension candidates. Maximal degree in co-relation 7174. Up to 2596 conditions per place. [2023-08-24 18:37:35,993 INFO L140 encePairwiseOnDemand]: 213/221 looper letters, 75 selfloop transitions, 11 changer transitions 0/96 dead transitions. [2023-08-24 18:37:35,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 96 transitions, 501 flow [2023-08-24 18:37:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-08-24 18:37:35,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37254901960784315 [2023-08-24 18:37:35,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-08-24 18:37:35,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-08-24 18:37:35,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:35,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-08-24 18:37:35,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:35,997 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 224 flow. Second operand 3 states and 247 transitions. [2023-08-24 18:37:35,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 96 transitions, 501 flow [2023-08-24 18:37:36,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 96 transitions, 463 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:37:36,004 INFO L231 Difference]: Finished difference. Result has 65 places, 76 transitions, 298 flow [2023-08-24 18:37:36,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=65, PETRI_TRANSITIONS=76} [2023-08-24 18:37:36,005 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -18 predicate places. [2023-08-24 18:37:36,005 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 76 transitions, 298 flow [2023-08-24 18:37:36,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:36,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:36,005 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 18:37:36,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:37:36,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-08-24 18:37:36,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:36,006 INFO L85 PathProgramCache]: Analyzing trace with hash -532499850, now seen corresponding path program 1 times [2023-08-24 18:37:36,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:36,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487314334] [2023-08-24 18:37:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:36,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:36,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:37:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:36,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:37:36,026 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-08-24 18:37:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (32 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-08-24 18:37:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-08-24 18:37:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-08-24 18:37:36,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-08-24 18:37:36,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-08-24 18:37:36,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-08-24 18:37:36,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 49 remaining) [2023-08-24 18:37:36,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:37:36,031 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-24 18:37:36,031 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:37:36,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 18:37:36,057 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:37:36,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,078 INFO L124 PetriNetUnfolderBase]: 13/222 cut-off events. [2023-08-24 18:37:36,078 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:37:36,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 222 events. 13/222 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 711 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-08-24 18:37:36,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,081 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:37:36,081 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,081 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 188 transitions, 397 flow [2023-08-24 18:37:36,095 INFO L124 PetriNetUnfolderBase]: 13/222 cut-off events. [2023-08-24 18:37:36,095 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:37:36,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 222 events. 13/222 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 711 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2023-08-24 18:37:36,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 21306 [2023-08-24 18:37:37,132 INFO L134 LiptonReduction]: Checked pairs total: 104214 [2023-08-24 18:37:37,132 INFO L136 LiptonReduction]: Total number of compositions: 120 [2023-08-24 18:37:37,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:37:37,133 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;@6cef1cbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:37:37,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-08-24 18:37:37,134 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:37:37,134 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:37:37,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:37,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:37,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:37,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:37,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash 36680277, now seen corresponding path program 1 times [2023-08-24 18:37:37,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:37,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033284923] [2023-08-24 18:37:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:37,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:37,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:37,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033284923] [2023-08-24 18:37:37,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033284923] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:37,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:37,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222519397] [2023-08-24 18:37:37,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:37,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:37:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:37,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:37:37,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:37:37,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 308 [2023-08-24 18:37:37,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 117 transitions, 255 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:37,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:37,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 308 [2023-08-24 18:37:37,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:38,151 INFO L124 PetriNetUnfolderBase]: 9241/15223 cut-off events. [2023-08-24 18:37:38,151 INFO L125 PetriNetUnfolderBase]: For 925/925 co-relation queries the response was YES. [2023-08-24 18:37:38,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28889 conditions, 15223 events. 9241/15223 cut-off events. For 925/925 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 114664 event pairs, 8327 based on Foata normal form. 0/14262 useless extension candidates. Maximal degree in co-relation 16187. Up to 13012 conditions per place. [2023-08-24 18:37:38,210 INFO L140 encePairwiseOnDemand]: 271/308 looper letters, 41 selfloop transitions, 0 changer transitions 0/80 dead transitions. [2023-08-24 18:37:38,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 80 transitions, 263 flow [2023-08-24 18:37:38,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:37:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:37:38,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 312 transitions. [2023-08-24 18:37:38,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2023-08-24 18:37:38,211 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 312 transitions. [2023-08-24 18:37:38,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 312 transitions. [2023-08-24 18:37:38,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:38,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 312 transitions. [2023-08-24 18:37:38,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:38,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:38,213 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:38,214 INFO L175 Difference]: Start difference. First operand has 121 places, 117 transitions, 255 flow. Second operand 2 states and 312 transitions. [2023-08-24 18:37:38,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 80 transitions, 263 flow [2023-08-24 18:37:38,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 80 transitions, 257 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:38,215 INFO L231 Difference]: Finished difference. Result has 85 places, 80 transitions, 175 flow [2023-08-24 18:37:38,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=175, PETRI_PLACES=85, PETRI_TRANSITIONS=80} [2023-08-24 18:37:38,216 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -36 predicate places. [2023-08-24 18:37:38,216 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 80 transitions, 175 flow [2023-08-24 18:37:38,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:38,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:38,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:37:38,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:37:38,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:38,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 890038967, now seen corresponding path program 1 times [2023-08-24 18:37:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:38,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71089320] [2023-08-24 18:37:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:38,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71089320] [2023-08-24 18:37:38,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71089320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:38,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871779249] [2023-08-24 18:37:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:38,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:38,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 308 [2023-08-24 18:37:38,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:38,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:38,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 308 [2023-08-24 18:37:38,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:42,658 INFO L124 PetriNetUnfolderBase]: 59382/90636 cut-off events. [2023-08-24 18:37:42,658 INFO L125 PetriNetUnfolderBase]: For 1609/1609 co-relation queries the response was YES. [2023-08-24 18:37:42,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177465 conditions, 90636 events. 59382/90636 cut-off events. For 1609/1609 co-relation queries the response was YES. Maximal size of possible extension queue 2970. Compared 760179 event pairs, 22217 based on Foata normal form. 0/77448 useless extension candidates. Maximal degree in co-relation 177459. Up to 47639 conditions per place. [2023-08-24 18:37:43,111 INFO L140 encePairwiseOnDemand]: 284/308 looper letters, 102 selfloop transitions, 18 changer transitions 0/136 dead transitions. [2023-08-24 18:37:43,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 136 transitions, 537 flow [2023-08-24 18:37:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-24 18:37:43,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39935064935064934 [2023-08-24 18:37:43,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-24 18:37:43,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-24 18:37:43,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:43,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-24 18:37:43,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:43,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:43,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:43,116 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 175 flow. Second operand 3 states and 369 transitions. [2023-08-24 18:37:43,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 136 transitions, 537 flow [2023-08-24 18:37:43,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 136 transitions, 537 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:37:43,121 INFO L231 Difference]: Finished difference. Result has 89 places, 98 transitions, 331 flow [2023-08-24 18:37:43,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=89, PETRI_TRANSITIONS=98} [2023-08-24 18:37:43,121 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -32 predicate places. [2023-08-24 18:37:43,122 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 98 transitions, 331 flow [2023-08-24 18:37:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:43,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:43,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:37:43,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:37:43,122 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:43,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1134215524, now seen corresponding path program 1 times [2023-08-24 18:37:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:43,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886096052] [2023-08-24 18:37:43,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:43,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:43,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886096052] [2023-08-24 18:37:43,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886096052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:43,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:43,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:43,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910246543] [2023-08-24 18:37:43,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:43,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:43,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:43,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 308 [2023-08-24 18:37:43,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 98 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:43,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:43,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 308 [2023-08-24 18:37:43,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:48,412 INFO L124 PetriNetUnfolderBase]: 63402/94745 cut-off events. [2023-08-24 18:37:48,412 INFO L125 PetriNetUnfolderBase]: For 37564/37700 co-relation queries the response was YES. [2023-08-24 18:37:48,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226752 conditions, 94745 events. 63402/94745 cut-off events. For 37564/37700 co-relation queries the response was YES. Maximal size of possible extension queue 3093. Compared 770490 event pairs, 43040 based on Foata normal form. 0/84143 useless extension candidates. Maximal degree in co-relation 226744. Up to 81745 conditions per place. [2023-08-24 18:37:49,011 INFO L140 encePairwiseOnDemand]: 296/308 looper letters, 118 selfloop transitions, 21 changer transitions 0/155 dead transitions. [2023-08-24 18:37:49,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 155 transitions, 819 flow [2023-08-24 18:37:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-08-24 18:37:49,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3712121212121212 [2023-08-24 18:37:49,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-08-24 18:37:49,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-08-24 18:37:49,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:49,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-08-24 18:37:49,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:49,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:49,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:49,014 INFO L175 Difference]: Start difference. First operand has 89 places, 98 transitions, 331 flow. Second operand 3 states and 343 transitions. [2023-08-24 18:37:49,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 155 transitions, 819 flow [2023-08-24 18:37:49,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 155 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:37:49,070 INFO L231 Difference]: Finished difference. Result has 91 places, 117 transitions, 493 flow [2023-08-24 18:37:49,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=91, PETRI_TRANSITIONS=117} [2023-08-24 18:37:49,071 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -30 predicate places. [2023-08-24 18:37:49,071 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 117 transitions, 493 flow [2023-08-24 18:37:49,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:49,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:49,071 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:37:49,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 18:37:49,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:49,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash -183852945, now seen corresponding path program 1 times [2023-08-24 18:37:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:49,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038766246] [2023-08-24 18:37:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:49,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-24 18:37:49,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:49,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038766246] [2023-08-24 18:37:49,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038766246] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:49,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:49,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:37:49,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964196501] [2023-08-24 18:37:49,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:49,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:37:49,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:49,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:37:49,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:37:49,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 308 [2023-08-24 18:37:49,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 117 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:49,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:49,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 308 [2023-08-24 18:37:49,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:37:54,664 INFO L124 PetriNetUnfolderBase]: 67437/101061 cut-off events. [2023-08-24 18:37:54,664 INFO L125 PetriNetUnfolderBase]: For 57045/57369 co-relation queries the response was YES. [2023-08-24 18:37:54,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253696 conditions, 101061 events. 67437/101061 cut-off events. For 57045/57369 co-relation queries the response was YES. Maximal size of possible extension queue 3318. Compared 831724 event pairs, 44040 based on Foata normal form. 0/88681 useless extension candidates. Maximal degree in co-relation 253687. Up to 86491 conditions per place. [2023-08-24 18:37:55,359 INFO L140 encePairwiseOnDemand]: 296/308 looper letters, 136 selfloop transitions, 33 changer transitions 0/185 dead transitions. [2023-08-24 18:37:55,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 185 transitions, 1132 flow [2023-08-24 18:37:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:37:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:37:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-08-24 18:37:55,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3712121212121212 [2023-08-24 18:37:55,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-08-24 18:37:55,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-08-24 18:37:55,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:37:55,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-08-24 18:37:55,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:55,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:55,365 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 308.0) internal successors, (1232), 4 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:55,365 INFO L175 Difference]: Start difference. First operand has 91 places, 117 transitions, 493 flow. Second operand 3 states and 343 transitions. [2023-08-24 18:37:55,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 185 transitions, 1132 flow [2023-08-24 18:37:55,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 185 transitions, 1064 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:37:55,566 INFO L231 Difference]: Finished difference. Result has 93 places, 146 transitions, 805 flow [2023-08-24 18:37:55,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=308, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=93, PETRI_TRANSITIONS=146} [2023-08-24 18:37:55,567 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -28 predicate places. [2023-08-24 18:37:55,567 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 146 transitions, 805 flow [2023-08-24 18:37:55,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:55,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:55,567 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 18:37:55,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 18:37:55,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-24 18:37:55,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:55,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1277975350, now seen corresponding path program 1 times [2023-08-24 18:37:55,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:55,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517212275] [2023-08-24 18:37:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:55,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:37:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:37:55,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:37:55,581 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-08-24 18:37:55,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (48 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-08-24 18:37:55,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (32 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-08-24 18:37:55,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-08-24 18:37:55,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (16 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-08-24 18:37:55,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-08-24 18:37:55,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-08-24 18:37:55,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONASSERT (0 of 65 remaining) [2023-08-24 18:37:55,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 18:37:55,586 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-24 18:37:55,586 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:37:55,586 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 18:37:55,605 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:37:55,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,625 INFO L124 PetriNetUnfolderBase]: 17/288 cut-off events. [2023-08-24 18:37:55,625 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:37:55,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 288 events. 17/288 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1050 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 230. Up to 10 conditions per place. [2023-08-24 18:37:55,626 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,628 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:37:55,629 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,629 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 242 transitions, 516 flow [2023-08-24 18:37:55,647 INFO L124 PetriNetUnfolderBase]: 17/288 cut-off events. [2023-08-24 18:37:55,647 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:37:55,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 288 events. 17/288 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1050 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 230. Up to 10 conditions per place. [2023-08-24 18:37:55,657 INFO L119 LiptonReduction]: Number of co-enabled transitions 39856 [2023-08-24 18:37:56,829 INFO L134 LiptonReduction]: Checked pairs total: 172524 [2023-08-24 18:37:56,829 INFO L136 LiptonReduction]: Total number of compositions: 144 [2023-08-24 18:37:56,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:37:56,830 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;@6cef1cbf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:37:56,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-08-24 18:37:56,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:37:56,831 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-24 18:37:56,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:37:56,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:37:56,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-24 18:37:56,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:37:56,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:37:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash 50193725, now seen corresponding path program 1 times [2023-08-24 18:37:56,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:37:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858124544] [2023-08-24 18:37:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:37:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:37:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:37:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:37:56,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:37:56,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858124544] [2023-08-24 18:37:56,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858124544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:37:56,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:37:56,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:37:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032012468] [2023-08-24 18:37:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:37:56,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:37:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:37:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:37:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:37:56,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 386 [2023-08-24 18:37:56,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 154 transitions, 340 flow. Second operand has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:37:56,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:37:56,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 386 [2023-08-24 18:37:56,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:38:10,726 INFO L124 PetriNetUnfolderBase]: 156121/225079 cut-off events. [2023-08-24 18:38:10,727 INFO L125 PetriNetUnfolderBase]: For 18873/18873 co-relation queries the response was YES. [2023-08-24 18:38:11,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436214 conditions, 225079 events. 156121/225079 cut-off events. For 18873/18873 co-relation queries the response was YES. Maximal size of possible extension queue 6230. Compared 1891650 event pairs, 141383 based on Foata normal form. 0/212407 useless extension candidates. Maximal degree in co-relation 54782. Up to 201364 conditions per place. [2023-08-24 18:38:12,117 INFO L140 encePairwiseOnDemand]: 337/386 looper letters, 54 selfloop transitions, 0 changer transitions 0/105 dead transitions. [2023-08-24 18:38:12,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 350 flow [2023-08-24 18:38:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:38:12,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:38:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 399 transitions. [2023-08-24 18:38:12,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168393782383419 [2023-08-24 18:38:12,119 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 399 transitions. [2023-08-24 18:38:12,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 399 transitions. [2023-08-24 18:38:12,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:38:12,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 399 transitions. [2023-08-24 18:38:12,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:12,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:12,121 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:12,121 INFO L175 Difference]: Start difference. First operand has 159 places, 154 transitions, 340 flow. Second operand 2 states and 399 transitions. [2023-08-24 18:38:12,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 105 transitions, 350 flow [2023-08-24 18:38:12,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 338 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-24 18:38:12,129 INFO L231 Difference]: Finished difference. Result has 111 places, 105 transitions, 230 flow [2023-08-24 18:38:12,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=230, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2023-08-24 18:38:12,129 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -48 predicate places. [2023-08-24 18:38:12,129 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 230 flow [2023-08-24 18:38:12,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.0) internal successors, (300), 2 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:12,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:38:12,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:38:12,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 18:38:12,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:38:12,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:38:12,130 INFO L85 PathProgramCache]: Analyzing trace with hash 991571965, now seen corresponding path program 1 times [2023-08-24 18:38:12,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:38:12,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862668244] [2023-08-24 18:38:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:38:12,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:38:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:38:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:38:12,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:38:12,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862668244] [2023-08-24 18:38:12,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862668244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:38:12,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:38:12,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:38:12,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706866815] [2023-08-24 18:38:12,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:38:12,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:38:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:38:12,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:38:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:38:12,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 386 [2023-08-24 18:38:12,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:12,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:38:12,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 386 [2023-08-24 18:38:12,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand