/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/goblint-regression/09-regions_16-arrayloop_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:34:28,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:34:28,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:34:28,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:34:28,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:34:28,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:34:28,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:34:28,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:34:28,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:34:28,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:34:28,575 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:34:28,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:34:28,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:34:28,577 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:34:28,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:34:28,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:34:28,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:34:28,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:34:28,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:34:28,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:34:28,579 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:34:28,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:34:28,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:34:28,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:34:28,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:34:28,580 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:34:28,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:34:28,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:34:28,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:34:28,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:34:28,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:34:28,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:34:28,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:34:28,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:34:28,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:34:28,583 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:34:28,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:34:28,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:34:28,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:34:28,914 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:34:28,915 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:34:28,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_16-arrayloop_rc.i [2023-08-25 03:34:30,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:34:30,542 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:34:30,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_16-arrayloop_rc.i [2023-08-25 03:34:30,563 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040538465/22292c7da4d24e858aa2f4c37a637017/FLAG9f9884b33 [2023-08-25 03:34:30,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040538465/22292c7da4d24e858aa2f4c37a637017 [2023-08-25 03:34:30,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:34:30,583 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:34:30,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:34:30,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:34:30,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:34:30,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:34:30" (1/1) ... [2023-08-25 03:34:30,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752f896e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:30, skipping insertion in model container [2023-08-25 03:34:30,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:34:30" (1/1) ... [2023-08-25 03:34:30,643 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:34:31,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:34:31,064 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:34:31,086 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:34:31,088 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:34:31,101 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-25 03:34:31,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:34:31,209 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:34:31,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31 WrapperNode [2023-08-25 03:34:31,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:34:31,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:34:31,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:34:31,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:34:31,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,278 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-25 03:34:31,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:34:31,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:34:31,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:34:31,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:34:31,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:34:31,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:34:31,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:34:31,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:34:31,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (1/1) ... [2023-08-25 03:34:31,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:34:31,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:34:31,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:34:31,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:34:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 03:34:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:34:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 03:34:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:34:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:34:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:34:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:34:31,408 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:34:31,530 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:34:31,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:34:32,082 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:34:32,090 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:34:32,090 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 03:34:32,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:34:32 BoogieIcfgContainer [2023-08-25 03:34:32,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:34:32,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:34:32,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:34:32,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:34:32,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:34:30" (1/3) ... [2023-08-25 03:34:32,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224ea131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:34:32, skipping insertion in model container [2023-08-25 03:34:32,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:34:31" (2/3) ... [2023-08-25 03:34:32,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224ea131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:34:32, skipping insertion in model container [2023-08-25 03:34:32,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:34:32" (3/3) ... [2023-08-25 03:34:32,102 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2023-08-25 03:34:32,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:34:32,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 03:34:32,117 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:34:32,226 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:34:32,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 255 transitions, 515 flow [2023-08-25 03:34:32,366 INFO L124 PetriNetUnfolderBase]: 6/254 cut-off events. [2023-08-25 03:34:32,367 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:34:32,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-25 03:34:32,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 255 transitions, 515 flow [2023-08-25 03:34:32,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 254 transitions, 511 flow [2023-08-25 03:34:32,390 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:34:32,402 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-25 03:34:32,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-25 03:34:32,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 511 flow [2023-08-25 03:34:32,469 INFO L124 PetriNetUnfolderBase]: 6/254 cut-off events. [2023-08-25 03:34:32,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:34:32,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-25 03:34:32,484 INFO L119 LiptonReduction]: Number of co-enabled transitions 17820 [2023-08-25 03:34:48,920 INFO L134 LiptonReduction]: Checked pairs total: 108171 [2023-08-25 03:34:48,921 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-08-25 03:34:48,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:34:48,937 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;@43281480, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:34:48,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-25 03:34:48,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:34:48,940 INFO L124 PetriNetUnfolderBase]: 1/3 cut-off events. [2023-08-25 03:34:48,940 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:34:48,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:48,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-25 03:34:48,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:34:48,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:48,945 INFO L85 PathProgramCache]: Analyzing trace with hash 25566, now seen corresponding path program 1 times [2023-08-25 03:34:48,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:48,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040346040] [2023-08-25 03:34:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:49,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:49,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040346040] [2023-08-25 03:34:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040346040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:34:49,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:34:49,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:34:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072124954] [2023-08-25 03:34:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:34:49,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 03:34:49,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:49,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 03:34:49,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 03:34:49,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 402 [2023-08-25 03:34:49,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:49,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 402 [2023-08-25 03:34:49,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:34:49,504 INFO L124 PetriNetUnfolderBase]: 376/1700 cut-off events. [2023-08-25 03:34:49,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:34:49,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1700 events. 376/1700 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10916 event pairs, 336 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2444. Up to 753 conditions per place. [2023-08-25 03:34:49,514 INFO L140 encePairwiseOnDemand]: 399/402 looper letters, 43 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-25 03:34:49,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 327 flow [2023-08-25 03:34:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 03:34:49,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 03:34:49,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 548 transitions. [2023-08-25 03:34:49,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.681592039800995 [2023-08-25 03:34:49,536 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 548 transitions. [2023-08-25 03:34:49,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 548 transitions. [2023-08-25 03:34:49,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:34:49,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 548 transitions. [2023-08-25 03:34:49,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,548 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,549 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 2 states and 548 transitions. [2023-08-25 03:34:49,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 327 flow [2023-08-25 03:34:49,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:34:49,555 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 240 flow [2023-08-25 03:34:49,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-08-25 03:34:49,561 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2023-08-25 03:34:49,561 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 240 flow [2023-08-25 03:34:49,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:49,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:34:49,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:34:49,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:34:49,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:49,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1621363482, now seen corresponding path program 1 times [2023-08-25 03:34:49,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:49,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123571153] [2023-08-25 03:34:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:49,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:49,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123571153] [2023-08-25 03:34:49,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123571153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:34:49,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:34:49,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:34:49,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632814693] [2023-08-25 03:34:49,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:34:49,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:34:49,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:49,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:34:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:34:49,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 402 [2023-08-25 03:34:49,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:49,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:49,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 402 [2023-08-25 03:34:49,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:34:50,288 INFO L124 PetriNetUnfolderBase]: 1090/3431 cut-off events. [2023-08-25 03:34:50,289 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:34:50,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5617 conditions, 3431 events. 1090/3431 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22458 event pairs, 512 based on Foata normal form. 0/3239 useless extension candidates. Maximal degree in co-relation 5614. Up to 1127 conditions per place. [2023-08-25 03:34:50,304 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 99 selfloop transitions, 4 changer transitions 0/168 dead transitions. [2023-08-25 03:34:50,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 168 transitions, 544 flow [2023-08-25 03:34:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:34:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:34:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-08-25 03:34:50,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6169154228855721 [2023-08-25 03:34:50,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-08-25 03:34:50,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-08-25 03:34:50,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:34:50,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-08-25 03:34:50,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:50,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:50,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:50,315 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 240 flow. Second operand 3 states and 744 transitions. [2023-08-25 03:34:50,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 168 transitions, 544 flow [2023-08-25 03:34:50,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 168 transitions, 544 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:34:50,321 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 264 flow [2023-08-25 03:34:50,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-25 03:34:50,322 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-25 03:34:50,325 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 264 flow [2023-08-25 03:34:50,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:50,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:50,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:34:50,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:34:50,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:34:50,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash -621239689, now seen corresponding path program 1 times [2023-08-25 03:34:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77952261] [2023-08-25 03:34:50,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:50,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:50,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:50,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77952261] [2023-08-25 03:34:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77952261] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:34:50,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764389563] [2023-08-25 03:34:50,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:50,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:34:50,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:34:50,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:34:50,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 03:34:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:50,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 03:34:50,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:34:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:50,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:34:50,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764389563] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:34:50,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:34:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-25 03:34:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822874507] [2023-08-25 03:34:50,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:34:50,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 03:34:50,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 03:34:50,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 03:34:50,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 402 [2023-08-25 03:34:50,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 214.85714285714286) internal successors, (1504), 7 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:50,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:50,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 402 [2023-08-25 03:34:50,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:34:52,118 INFO L124 PetriNetUnfolderBase]: 2161/6967 cut-off events. [2023-08-25 03:34:52,118 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-25 03:34:52,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11427 conditions, 6967 events. 2161/6967 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 46763 event pairs, 350 based on Foata normal form. 51/6710 useless extension candidates. Maximal degree in co-relation 11422. Up to 1072 conditions per place. [2023-08-25 03:34:52,154 INFO L140 encePairwiseOnDemand]: 395/402 looper letters, 209 selfloop transitions, 11 changer transitions 0/285 dead transitions. [2023-08-25 03:34:52,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 285 transitions, 1042 flow [2023-08-25 03:34:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:34:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:34:52,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2023-08-25 03:34:52,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6235489220563848 [2023-08-25 03:34:52,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1504 transitions. [2023-08-25 03:34:52,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1504 transitions. [2023-08-25 03:34:52,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:34:52,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1504 transitions. [2023-08-25 03:34:52,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.66666666666666) internal successors, (1504), 6 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:52,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:52,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:52,171 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 264 flow. Second operand 6 states and 1504 transitions. [2023-08-25 03:34:52,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 285 transitions, 1042 flow [2023-08-25 03:34:52,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 285 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:34:52,178 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 338 flow [2023-08-25 03:34:52,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2023-08-25 03:34:52,179 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2023-08-25 03:34:52,179 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 338 flow [2023-08-25 03:34:52,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 214.85714285714286) internal successors, (1504), 7 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:52,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:52,181 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:34:52,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 03:34:52,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:34:52,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:34:52,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303974, now seen corresponding path program 2 times [2023-08-25 03:34:52,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:52,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585998329] [2023-08-25 03:34:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:52,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:52,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585998329] [2023-08-25 03:34:52,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585998329] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:34:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698604922] [2023-08-25 03:34:52,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 03:34:52,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:34:52,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:34:52,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:34:52,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 03:34:52,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-25 03:34:52,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 03:34:52,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-25 03:34:52,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:34:52,899 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 03:34:52,923 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-25 03:34:52,961 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:34:52,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-25 03:34:53,010 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 03:34:53,011 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-25 03:34:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-25 03:34:53,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 03:34:53,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698604922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:34:53,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 03:34:53,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2023-08-25 03:34:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877588399] [2023-08-25 03:34:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:34:53,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 03:34:53,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:53,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 03:34:53,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-25 03:34:53,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 402 [2023-08-25 03:34:53,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:53,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:53,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 402 [2023-08-25 03:34:53,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:34:56,763 INFO L124 PetriNetUnfolderBase]: 13237/26841 cut-off events. [2023-08-25 03:34:56,763 INFO L125 PetriNetUnfolderBase]: For 2022/2022 co-relation queries the response was YES. [2023-08-25 03:34:56,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54577 conditions, 26841 events. 13237/26841 cut-off events. For 2022/2022 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 172709 event pairs, 868 based on Foata normal form. 0/22934 useless extension candidates. Maximal degree in co-relation 54569. Up to 22966 conditions per place. [2023-08-25 03:34:56,891 INFO L140 encePairwiseOnDemand]: 358/402 looper letters, 323 selfloop transitions, 151 changer transitions 0/478 dead transitions. [2023-08-25 03:34:56,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 478 transitions, 2198 flow [2023-08-25 03:34:56,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 03:34:56,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 03:34:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1399 transitions. [2023-08-25 03:34:56,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4971570717839375 [2023-08-25 03:34:56,895 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1399 transitions. [2023-08-25 03:34:56,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1399 transitions. [2023-08-25 03:34:56,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:34:56,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1399 transitions. [2023-08-25 03:34:56,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:56,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:56,905 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:56,905 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 338 flow. Second operand 7 states and 1399 transitions. [2023-08-25 03:34:56,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 478 transitions, 2198 flow [2023-08-25 03:34:56,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 478 transitions, 2142 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-25 03:34:56,915 INFO L231 Difference]: Finished difference. Result has 141 places, 312 transitions, 1450 flow [2023-08-25 03:34:56,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1450, PETRI_PLACES=141, PETRI_TRANSITIONS=312} [2023-08-25 03:34:56,916 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 18 predicate places. [2023-08-25 03:34:56,916 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 312 transitions, 1450 flow [2023-08-25 03:34:56,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.85714285714286) internal successors, (965), 7 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:56,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:34:56,917 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:34:56,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 03:34:57,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-25 03:34:57,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:34:57,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:34:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1104611333, now seen corresponding path program 1 times [2023-08-25 03:34:57,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:34:57,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13991672] [2023-08-25 03:34:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:57,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:34:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:57,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:34:57,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13991672] [2023-08-25 03:34:57,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13991672] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 03:34:57,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152443244] [2023-08-25 03:34:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:34:57,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:34:57,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:34:57,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 03:34:57,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 03:34:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:34:57,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 03:34:57,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 03:34:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:57,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 03:34:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:34:57,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152443244] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 03:34:57,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 03:34:57,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-25 03:34:57,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28505206] [2023-08-25 03:34:57,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 03:34:57,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 03:34:57,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:34:57,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 03:34:57,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-25 03:34:57,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 402 [2023-08-25 03:34:57,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 312 transitions, 1450 flow. Second operand has 13 states, 13 states have (on average 214.53846153846155) internal successors, (2789), 13 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:34:57,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:34:57,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 402 [2023-08-25 03:34:57,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:35:04,165 INFO L124 PetriNetUnfolderBase]: 8877/25751 cut-off events. [2023-08-25 03:35:04,166 INFO L125 PetriNetUnfolderBase]: For 6431/6790 co-relation queries the response was YES. [2023-08-25 03:35:04,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59511 conditions, 25751 events. 8877/25751 cut-off events. For 6431/6790 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 181357 event pairs, 21 based on Foata normal form. 163/25260 useless extension candidates. Maximal degree in co-relation 59497. Up to 9402 conditions per place. [2023-08-25 03:35:04,290 INFO L140 encePairwiseOnDemand]: 395/402 looper letters, 1063 selfloop transitions, 23 changer transitions 0/1279 dead transitions. [2023-08-25 03:35:04,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 1279 transitions, 7754 flow [2023-08-25 03:35:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 03:35:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 03:35:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3082 transitions. [2023-08-25 03:35:04,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2023-08-25 03:35:04,299 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3082 transitions. [2023-08-25 03:35:04,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3082 transitions. [2023-08-25 03:35:04,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:35:04,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3082 transitions. [2023-08-25 03:35:04,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 256.8333333333333) internal successors, (3082), 12 states have internal predecessors, (3082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:04,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:04,317 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:04,317 INFO L175 Difference]: Start difference. First operand has 141 places, 312 transitions, 1450 flow. Second operand 12 states and 3082 transitions. [2023-08-25 03:35:04,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 1279 transitions, 7754 flow [2023-08-25 03:35:04,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 1279 transitions, 7754 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:35:04,429 INFO L231 Difference]: Finished difference. Result has 159 places, 325 transitions, 1632 flow [2023-08-25 03:35:04,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1632, PETRI_PLACES=159, PETRI_TRANSITIONS=325} [2023-08-25 03:35:04,430 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 36 predicate places. [2023-08-25 03:35:04,430 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 325 transitions, 1632 flow [2023-08-25 03:35:04,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 214.53846153846155) internal successors, (2789), 13 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:04,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:35:04,432 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:35:04,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 03:35:04,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 03:35:04,638 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:35:04,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:35:04,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2058752731, now seen corresponding path program 2 times [2023-08-25 03:35:04,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:35:04,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24282777] [2023-08-25 03:35:04,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:35:04,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:35:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:35:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:35:05,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:35:05,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24282777] [2023-08-25 03:35:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24282777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:35:05,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:35:05,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:35:05,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410032750] [2023-08-25 03:35:05,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:35:05,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:35:05,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:35:05,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:35:05,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:35:05,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 402 [2023-08-25 03:35:05,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 325 transitions, 1632 flow. Second operand has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:05,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:35:05,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 402 [2023-08-25 03:35:05,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:35:20,428 INFO L124 PetriNetUnfolderBase]: 34653/71011 cut-off events. [2023-08-25 03:35:20,429 INFO L125 PetriNetUnfolderBase]: For 25885/25885 co-relation queries the response was YES. [2023-08-25 03:35:20,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178207 conditions, 71011 events. 34653/71011 cut-off events. For 25885/25885 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 460239 event pairs, 13060 based on Foata normal form. 0/62288 useless extension candidates. Maximal degree in co-relation 178186. Up to 66402 conditions per place. [2023-08-25 03:35:20,823 INFO L140 encePairwiseOnDemand]: 372/402 looper letters, 407 selfloop transitions, 109 changer transitions 0/520 dead transitions. [2023-08-25 03:35:20,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 520 transitions, 3154 flow [2023-08-25 03:35:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:35:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:35:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1078 transitions. [2023-08-25 03:35:20,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469320066334992 [2023-08-25 03:35:20,827 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1078 transitions. [2023-08-25 03:35:20,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1078 transitions. [2023-08-25 03:35:20,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:35:20,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1078 transitions. [2023-08-25 03:35:20,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:20,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:20,834 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:20,834 INFO L175 Difference]: Start difference. First operand has 159 places, 325 transitions, 1632 flow. Second operand 6 states and 1078 transitions. [2023-08-25 03:35:20,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 520 transitions, 3154 flow [2023-08-25 03:35:21,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 520 transitions, 3128 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 03:35:21,069 INFO L231 Difference]: Finished difference. Result has 165 places, 428 transitions, 2261 flow [2023-08-25 03:35:21,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2261, PETRI_PLACES=165, PETRI_TRANSITIONS=428} [2023-08-25 03:35:21,070 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2023-08-25 03:35:21,070 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 428 transitions, 2261 flow [2023-08-25 03:35:21,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:21,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:35:21,070 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:35:21,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:35:21,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:35:21,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:35:21,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1375590774, now seen corresponding path program 1 times [2023-08-25 03:35:21,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:35:21,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278885778] [2023-08-25 03:35:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:35:21,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:35:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:35:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:35:22,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:35:22,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278885778] [2023-08-25 03:35:22,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278885778] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:35:22,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:35:22,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:35:22,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945793794] [2023-08-25 03:35:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:35:22,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:35:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:35:22,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:35:22,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:35:22,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 03:35:22,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 428 transitions, 2261 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:22,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:35:22,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 03:35:22,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:35:51,098 INFO L124 PetriNetUnfolderBase]: 67193/136752 cut-off events. [2023-08-25 03:35:51,098 INFO L125 PetriNetUnfolderBase]: For 71208/71328 co-relation queries the response was YES. [2023-08-25 03:35:51,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392282 conditions, 136752 events. 67193/136752 cut-off events. For 71208/71328 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 1016179 event pairs, 3421 based on Foata normal form. 120/119814 useless extension candidates. Maximal degree in co-relation 392256. Up to 63510 conditions per place. [2023-08-25 03:35:51,926 INFO L140 encePairwiseOnDemand]: 364/402 looper letters, 997 selfloop transitions, 157 changer transitions 1/1159 dead transitions. [2023-08-25 03:35:51,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1159 transitions, 8237 flow [2023-08-25 03:35:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 03:35:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 03:35:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2175 transitions. [2023-08-25 03:35:51,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4161882893226177 [2023-08-25 03:35:51,932 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2175 transitions. [2023-08-25 03:35:51,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2175 transitions. [2023-08-25 03:35:51,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:35:51,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2175 transitions. [2023-08-25 03:35:51,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 167.30769230769232) internal successors, (2175), 13 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:51,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:51,944 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:51,944 INFO L175 Difference]: Start difference. First operand has 165 places, 428 transitions, 2261 flow. Second operand 13 states and 2175 transitions. [2023-08-25 03:35:51,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1159 transitions, 8237 flow [2023-08-25 03:35:53,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 1159 transitions, 8165 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-25 03:35:53,388 INFO L231 Difference]: Finished difference. Result has 188 places, 585 transitions, 4179 flow [2023-08-25 03:35:53,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4179, PETRI_PLACES=188, PETRI_TRANSITIONS=585} [2023-08-25 03:35:53,389 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 65 predicate places. [2023-08-25 03:35:53,389 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 585 transitions, 4179 flow [2023-08-25 03:35:53,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:53,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:35:53,390 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:35:53,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:35:53,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:35:53,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:35:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash 869726804, now seen corresponding path program 2 times [2023-08-25 03:35:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:35:53,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592563429] [2023-08-25 03:35:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:35:53,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:35:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:35:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:35:54,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:35:54,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592563429] [2023-08-25 03:35:54,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592563429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:35:54,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:35:54,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:35:54,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581937704] [2023-08-25 03:35:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:35:54,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:35:54,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:35:54,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:35:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:35:54,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 03:35:54,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 585 transitions, 4179 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:35:54,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:35:54,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 03:35:54,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:36:26,935 INFO L124 PetriNetUnfolderBase]: 67033/136542 cut-off events. [2023-08-25 03:36:26,936 INFO L125 PetriNetUnfolderBase]: For 126238/126298 co-relation queries the response was YES. [2023-08-25 03:36:27,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420972 conditions, 136542 events. 67033/136542 cut-off events. For 126238/126298 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 1013612 event pairs, 5234 based on Foata normal form. 60/119744 useless extension candidates. Maximal degree in co-relation 420934. Up to 70748 conditions per place. [2023-08-25 03:36:27,770 INFO L140 encePairwiseOnDemand]: 362/402 looper letters, 970 selfloop transitions, 168 changer transitions 2/1144 dead transitions. [2023-08-25 03:36:27,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 1144 transitions, 9236 flow [2023-08-25 03:36:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-25 03:36:27,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-25 03:36:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2239 transitions. [2023-08-25 03:36:27,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39783226723525233 [2023-08-25 03:36:27,775 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2239 transitions. [2023-08-25 03:36:27,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2239 transitions. [2023-08-25 03:36:27,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:36:27,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2239 transitions. [2023-08-25 03:36:27,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.92857142857142) internal successors, (2239), 14 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:27,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:27,787 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:27,787 INFO L175 Difference]: Start difference. First operand has 188 places, 585 transitions, 4179 flow. Second operand 14 states and 2239 transitions. [2023-08-25 03:36:27,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 1144 transitions, 9236 flow [2023-08-25 03:36:32,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1144 transitions, 9236 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:36:32,502 INFO L231 Difference]: Finished difference. Result has 211 places, 628 transitions, 5307 flow [2023-08-25 03:36:32,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5307, PETRI_PLACES=211, PETRI_TRANSITIONS=628} [2023-08-25 03:36:32,503 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 88 predicate places. [2023-08-25 03:36:32,503 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 628 transitions, 5307 flow [2023-08-25 03:36:32,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:32,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:36:32,504 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:36:32,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 03:36:32,504 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:36:32,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:36:32,505 INFO L85 PathProgramCache]: Analyzing trace with hash -367352326, now seen corresponding path program 1 times [2023-08-25 03:36:32,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:36:32,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705174921] [2023-08-25 03:36:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:36:32,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:36:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:36:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:36:33,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:36:33,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705174921] [2023-08-25 03:36:33,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705174921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:36:33,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:36:33,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:36:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016869835] [2023-08-25 03:36:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:36:33,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:36:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:36:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:36:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:36:33,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 03:36:33,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 628 transitions, 5307 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:36:33,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:36:33,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 03:36:33,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:37:12,660 INFO L124 PetriNetUnfolderBase]: 67183/137613 cut-off events. [2023-08-25 03:37:12,660 INFO L125 PetriNetUnfolderBase]: For 187340/187362 co-relation queries the response was YES. [2023-08-25 03:37:13,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443142 conditions, 137613 events. 67183/137613 cut-off events. For 187340/187362 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 1012917 event pairs, 35142 based on Foata normal form. 22/120726 useless extension candidates. Maximal degree in co-relation 443093. Up to 128430 conditions per place. [2023-08-25 03:37:13,733 INFO L140 encePairwiseOnDemand]: 369/402 looper letters, 637 selfloop transitions, 154 changer transitions 1/796 dead transitions. [2023-08-25 03:37:13,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 796 transitions, 7633 flow [2023-08-25 03:37:13,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 03:37:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 03:37:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1295 transitions. [2023-08-25 03:37:13,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4026741293532338 [2023-08-25 03:37:13,737 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1295 transitions. [2023-08-25 03:37:13,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1295 transitions. [2023-08-25 03:37:13,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:37:13,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1295 transitions. [2023-08-25 03:37:13,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 161.875) internal successors, (1295), 8 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:13,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:13,744 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:13,744 INFO L175 Difference]: Start difference. First operand has 211 places, 628 transitions, 5307 flow. Second operand 8 states and 1295 transitions. [2023-08-25 03:37:13,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 796 transitions, 7633 flow [2023-08-25 03:37:18,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 796 transitions, 7145 flow, removed 175 selfloop flow, removed 1 redundant places. [2023-08-25 03:37:18,553 INFO L231 Difference]: Finished difference. Result has 219 places, 633 transitions, 5248 flow [2023-08-25 03:37:18,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4853, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5248, PETRI_PLACES=219, PETRI_TRANSITIONS=633} [2023-08-25 03:37:18,554 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 96 predicate places. [2023-08-25 03:37:18,554 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 633 transitions, 5248 flow [2023-08-25 03:37:18,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:18,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:37:18,555 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:37:18,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 03:37:18,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:37:18,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:37:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1605052882, now seen corresponding path program 2 times [2023-08-25 03:37:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:37:18,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110742981] [2023-08-25 03:37:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:37:18,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:37:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:37:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:37:19,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:37:19,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110742981] [2023-08-25 03:37:19,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110742981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:37:19,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:37:19,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:37:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41719975] [2023-08-25 03:37:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:37:19,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:37:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:37:19,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:37:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:37:19,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 03:37:19,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 633 transitions, 5248 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:19,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:37:19,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 03:37:19,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:37:52,646 INFO L124 PetriNetUnfolderBase]: 68063/138562 cut-off events. [2023-08-25 03:37:52,647 INFO L125 PetriNetUnfolderBase]: For 159121/159201 co-relation queries the response was YES. [2023-08-25 03:37:53,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452441 conditions, 138562 events. 68063/138562 cut-off events. For 159121/159201 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 1031333 event pairs, 4714 based on Foata normal form. 80/121724 useless extension candidates. Maximal degree in co-relation 452390. Up to 70768 conditions per place. [2023-08-25 03:37:53,865 INFO L140 encePairwiseOnDemand]: 375/402 looper letters, 977 selfloop transitions, 123 changer transitions 2/1106 dead transitions. [2023-08-25 03:37:53,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1106 transitions, 9975 flow [2023-08-25 03:37:53,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 03:37:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 03:37:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1654 transitions. [2023-08-25 03:37:53,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41144278606965173 [2023-08-25 03:37:53,869 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1654 transitions. [2023-08-25 03:37:53,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1654 transitions. [2023-08-25 03:37:53,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:37:53,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1654 transitions. [2023-08-25 03:37:53,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 165.4) internal successors, (1654), 10 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:53,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:53,876 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:53,877 INFO L175 Difference]: Start difference. First operand has 219 places, 633 transitions, 5248 flow. Second operand 10 states and 1654 transitions. [2023-08-25 03:37:53,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1106 transitions, 9975 flow [2023-08-25 03:37:59,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 1106 transitions, 9533 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 03:37:59,667 INFO L231 Difference]: Finished difference. Result has 229 places, 735 transitions, 6274 flow [2023-08-25 03:37:59,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6274, PETRI_PLACES=229, PETRI_TRANSITIONS=735} [2023-08-25 03:37:59,668 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 106 predicate places. [2023-08-25 03:37:59,668 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 735 transitions, 6274 flow [2023-08-25 03:37:59,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:37:59,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:37:59,669 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:37:59,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 03:37:59,669 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:37:59,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:37:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 11992814, now seen corresponding path program 3 times [2023-08-25 03:37:59,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:37:59,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354227207] [2023-08-25 03:37:59,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:37:59,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:37:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:38:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:38:00,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:38:00,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354227207] [2023-08-25 03:38:00,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354227207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:38:00,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:38:00,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:38:00,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440715718] [2023-08-25 03:38:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:38:00,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:38:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:38:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:38:00,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:38:00,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 03:38:00,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 735 transitions, 6274 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:00,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:38:00,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 03:38:00,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:38:41,362 INFO L124 PetriNetUnfolderBase]: 68403/140053 cut-off events. [2023-08-25 03:38:41,362 INFO L125 PetriNetUnfolderBase]: For 222216/222258 co-relation queries the response was YES. [2023-08-25 03:38:42,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474299 conditions, 140053 events. 68403/140053 cut-off events. For 222216/222258 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 1033921 event pairs, 35182 based on Foata normal form. 42/123116 useless extension candidates. Maximal degree in co-relation 474242. Up to 130150 conditions per place. [2023-08-25 03:38:42,721 INFO L140 encePairwiseOnDemand]: 369/402 looper letters, 675 selfloop transitions, 243 changer transitions 1/923 dead transitions. [2023-08-25 03:38:42,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 923 transitions, 8990 flow [2023-08-25 03:38:42,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 03:38:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 03:38:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1427 transitions. [2023-08-25 03:38:42,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39441680486456604 [2023-08-25 03:38:42,724 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1427 transitions. [2023-08-25 03:38:42,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1427 transitions. [2023-08-25 03:38:42,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:38:42,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1427 transitions. [2023-08-25 03:38:42,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.55555555555554) internal successors, (1427), 9 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:42,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:42,728 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:42,729 INFO L175 Difference]: Start difference. First operand has 229 places, 735 transitions, 6274 flow. Second operand 9 states and 1427 transitions. [2023-08-25 03:38:42,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 923 transitions, 8990 flow [2023-08-25 03:38:48,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 923 transitions, 8968 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 03:38:48,607 INFO L231 Difference]: Finished difference. Result has 239 places, 748 transitions, 7040 flow [2023-08-25 03:38:48,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7040, PETRI_PLACES=239, PETRI_TRANSITIONS=748} [2023-08-25 03:38:48,608 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2023-08-25 03:38:48,608 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 748 transitions, 7040 flow [2023-08-25 03:38:48,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:48,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:38:48,609 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:38:48,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 03:38:48,609 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:38:48,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:38:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash -800353708, now seen corresponding path program 3 times [2023-08-25 03:38:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:38:48,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132739665] [2023-08-25 03:38:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:38:48,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:38:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:38:49,488 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:38:49,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:38:49,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132739665] [2023-08-25 03:38:49,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132739665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:38:49,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:38:49,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:38:49,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057908390] [2023-08-25 03:38:49,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:38:49,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:38:49,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:38:49,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:38:49,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:38:49,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 402 [2023-08-25 03:38:49,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 748 transitions, 7040 flow. Second operand has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:38:49,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:38:49,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 402 [2023-08-25 03:38:49,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:39:27,699 INFO L124 PetriNetUnfolderBase]: 68668/139664 cut-off events. [2023-08-25 03:39:27,700 INFO L125 PetriNetUnfolderBase]: For 278679/278799 co-relation queries the response was YES. [2023-08-25 03:39:28,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493334 conditions, 139664 events. 68668/139664 cut-off events. For 278679/278799 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 1028356 event pairs, 25797 based on Foata normal form. 120/122817 useless extension candidates. Maximal degree in co-relation 493273. Up to 123332 conditions per place. [2023-08-25 03:39:29,109 INFO L140 encePairwiseOnDemand]: 356/402 looper letters, 684 selfloop transitions, 335 changer transitions 0/1023 dead transitions. [2023-08-25 03:39:29,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1023 transitions, 10527 flow [2023-08-25 03:39:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 03:39:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 03:39:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1568 transitions. [2023-08-25 03:39:29,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43338861249309013 [2023-08-25 03:39:29,112 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1568 transitions. [2023-08-25 03:39:29,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1568 transitions. [2023-08-25 03:39:29,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:39:29,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1568 transitions. [2023-08-25 03:39:29,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 174.22222222222223) internal successors, (1568), 9 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:29,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:29,118 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:29,118 INFO L175 Difference]: Start difference. First operand has 239 places, 748 transitions, 7040 flow. Second operand 9 states and 1568 transitions. [2023-08-25 03:39:29,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1023 transitions, 10527 flow [2023-08-25 03:39:38,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 1023 transitions, 10124 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-08-25 03:39:38,595 INFO L231 Difference]: Finished difference. Result has 246 places, 757 transitions, 7508 flow [2023-08-25 03:39:38,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6656, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7508, PETRI_PLACES=246, PETRI_TRANSITIONS=757} [2023-08-25 03:39:38,596 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 123 predicate places. [2023-08-25 03:39:38,596 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 757 transitions, 7508 flow [2023-08-25 03:39:38,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.0) internal successors, (1080), 9 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:38,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:39:38,597 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:39:38,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 03:39:38,597 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-25 03:39:38,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:39:38,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1141809094, now seen corresponding path program 4 times [2023-08-25 03:39:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:39:38,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366300743] [2023-08-25 03:39:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:39:38,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:39:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:39:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-25 03:39:39,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:39:39,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366300743] [2023-08-25 03:39:39,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366300743] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:39:39,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:39:39,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 03:39:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121679408] [2023-08-25 03:39:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:39:39,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 03:39:39,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:39:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 03:39:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-25 03:39:39,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 402 [2023-08-25 03:39:39,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 757 transitions, 7508 flow. Second operand has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:39:39,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:39:39,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 402 [2023-08-25 03:39:39,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand