/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:02:25,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:02:25,955 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 02:02:25,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:02:25,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:02:25,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:02:25,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:02:25,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:02:25,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:02:25,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:02:25,998 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:02:25,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:02:25,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:02:26,000 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:02:26,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:02:26,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:02:26,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:02:26,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:02:26,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:02:26,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:02:26,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:02:26,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:02:26,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:02:26,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:02:26,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:02:26,003 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:02:26,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:02:26,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:02:26,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:02:26,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:02:26,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:02:26,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:02:26,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:02:26,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:02:26,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:02:26,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:02:26,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:02:26,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:02:26,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:02:26,327 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:02:26,329 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:02:26,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-08-25 02:02:27,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:02:27,837 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:02:27,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-08-25 02:02:27,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f720351ff/0037f108e4bb48aebdc19582b9462e58/FLAG508a4c224 [2023-08-25 02:02:27,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f720351ff/0037f108e4bb48aebdc19582b9462e58 [2023-08-25 02:02:27,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:02:27,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:02:27,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:02:27,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:02:27,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:02:27,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:02:27" (1/1) ... [2023-08-25 02:02:27,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eee5866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:27, skipping insertion in model container [2023-08-25 02:02:27,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:02:27" (1/1) ... [2023-08-25 02:02:27,938 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:02:28,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:02:28,272 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:02:28,303 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 02:02:28,305 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 02:02:28,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:02:28,365 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:02:28,365 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 02:02:28,371 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:02:28,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28 WrapperNode [2023-08-25 02:02:28,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:02:28,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:02:28,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:02:28,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:02:28,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,408 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 100 [2023-08-25 02:02:28,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:02:28,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:02:28,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:02:28,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:02:28,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,426 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:02:28,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:02:28,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:02:28,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:02:28,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (1/1) ... [2023-08-25 02:02:28,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:02:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:02:28,463 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 02:02:28,497 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 02:02:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:02:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 02:02:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:02:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:02:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 02:02:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 02:02:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 02:02:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 02:02:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:02:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:02:28,514 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 02:02:28,650 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:02:28,651 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:02:28,914 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:02:29,042 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:02:29,042 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 02:02:29,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:02:29 BoogieIcfgContainer [2023-08-25 02:02:29,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:02:29,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:02:29,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:02:29,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:02:29,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:02:27" (1/3) ... [2023-08-25 02:02:29,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601177e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:02:29, skipping insertion in model container [2023-08-25 02:02:29,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:02:28" (2/3) ... [2023-08-25 02:02:29,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601177e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:02:29, skipping insertion in model container [2023-08-25 02:02:29,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:02:29" (3/3) ... [2023-08-25 02:02:29,053 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2023-08-25 02:02:29,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:02:29,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-08-25 02:02:29,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:02:29,125 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 02:02:29,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 111 transitions, 237 flow [2023-08-25 02:02:29,226 INFO L124 PetriNetUnfolderBase]: 3/108 cut-off events. [2023-08-25 02:02:29,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:02:29,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 108 events. 3/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-25 02:02:29,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 111 transitions, 237 flow [2023-08-25 02:02:29,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 108 transitions, 225 flow [2023-08-25 02:02:29,240 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:02:29,248 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 108 transitions, 225 flow [2023-08-25 02:02:29,250 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 108 transitions, 225 flow [2023-08-25 02:02:29,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 108 transitions, 225 flow [2023-08-25 02:02:29,286 INFO L124 PetriNetUnfolderBase]: 3/108 cut-off events. [2023-08-25 02:02:29,286 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:02:29,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 108 events. 3/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 122 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-25 02:02:29,290 INFO L119 LiptonReduction]: Number of co-enabled transitions 3660 [2023-08-25 02:02:32,845 INFO L134 LiptonReduction]: Checked pairs total: 13034 [2023-08-25 02:02:32,845 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-25 02:02:32,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:02:32,861 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;@5c0e375, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:02:32,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-25 02:02:32,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:02:32,863 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 02:02:32,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:02:32,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:32,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 02:02:32,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:32,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash 553161, now seen corresponding path program 1 times [2023-08-25 02:02:32,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:32,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771349959] [2023-08-25 02:02:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:33,041 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 02:02:33,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:33,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771349959] [2023-08-25 02:02:33,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771349959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:33,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:33,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:02:33,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502490646] [2023-08-25 02:02:33,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:02:33,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:33,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:02:33,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:02:33,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 214 [2023-08-25 02:02:33,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 02:02:33,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:33,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 214 [2023-08-25 02:02:33,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:33,201 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 02:02:33,201 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 02:02:33,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3163 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 02:02:33,208 INFO L140 encePairwiseOnDemand]: 193/214 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 02:02:33,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 02:02:33,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:02:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:02:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 189 transitions. [2023-08-25 02:02:33,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.441588785046729 [2023-08-25 02:02:33,219 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 189 transitions. [2023-08-25 02:02:33,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 189 transitions. [2023-08-25 02:02:33,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:33,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 189 transitions. [2023-08-25 02:02:33,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states 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 02:02:33,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states 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 02:02:33,228 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states 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 02:02:33,229 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 2 states and 189 transitions. [2023-08-25 02:02:33,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 02:02:33,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 02:02:33,233 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 02:02:33,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 02:02:33,237 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -22 predicate places. [2023-08-25 02:02:33,237 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 02:02:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 02:02:33,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:33,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:33,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:02:33,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:33,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:33,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1203974337, now seen corresponding path program 1 times [2023-08-25 02:02:33,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:33,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515966469] [2023-08-25 02:02:33,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:33,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:33,384 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 02:02:33,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:33,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515966469] [2023-08-25 02:02:33,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515966469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:33,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:33,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:02:33,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499006595] [2023-08-25 02:02:33,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:33,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:33,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:33,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:33,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:33,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:02:33,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:33,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:33,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:33,467 INFO L124 PetriNetUnfolderBase]: 401/626 cut-off events. [2023-08-25 02:02:33,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:02:33,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 626 events. 401/626 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2171 event pairs, 119 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 1294. Up to 547 conditions per place. [2023-08-25 02:02:33,471 INFO L140 encePairwiseOnDemand]: 210/214 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-08-25 02:02:33,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 112 flow [2023-08-25 02:02:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 02:02:33,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3878504672897196 [2023-08-25 02:02:33,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 02:02:33,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 02:02:33,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:33,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 02:02:33,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 02:02:33,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,478 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 249 transitions. [2023-08-25 02:02:33,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 112 flow [2023-08-25 02:02:33,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:02:33,479 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 59 flow [2023-08-25 02:02:33,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-25 02:02:33,480 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -20 predicate places. [2023-08-25 02:02:33,480 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 59 flow [2023-08-25 02:02:33,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:02:33,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:33,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:33,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:02:33,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:33,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1331499761, now seen corresponding path program 1 times [2023-08-25 02:02:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492365137] [2023-08-25 02:02:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:33,576 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 02:02:33,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:33,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492365137] [2023-08-25 02:02:33,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492365137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:33,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:33,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:02:33,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795246883] [2023-08-25 02:02:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:33,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:33,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:33,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:33,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 02:02:33,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:33,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:33,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:33,662 INFO L124 PetriNetUnfolderBase]: 385/604 cut-off events. [2023-08-25 02:02:33,663 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2023-08-25 02:02:33,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 604 events. 385/604 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2244 event pairs, 105 based on Foata normal form. 6/610 useless extension candidates. Maximal degree in co-relation 1422. Up to 559 conditions per place. [2023-08-25 02:02:33,667 INFO L140 encePairwiseOnDemand]: 210/214 looper letters, 29 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-08-25 02:02:33,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 32 transitions, 163 flow [2023-08-25 02:02:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:33,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 02:02:33,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3909657320872274 [2023-08-25 02:02:33,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:33,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 02:02:33,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,675 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 59 flow. Second operand 3 states and 251 transitions. [2023-08-25 02:02:33,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 32 transitions, 163 flow [2023-08-25 02:02:33,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 32 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:33,676 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 75 flow [2023-08-25 02:02:33,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2023-08-25 02:02:33,678 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -18 predicate places. [2023-08-25 02:02:33,678 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 75 flow [2023-08-25 02:02:33,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 02:02:33,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:33,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:33,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:02:33,682 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:33,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:33,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1673181856, now seen corresponding path program 1 times [2023-08-25 02:02:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:33,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410804024] [2023-08-25 02:02:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:33,755 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 02:02:33,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:33,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410804024] [2023-08-25 02:02:33,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410804024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:33,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:33,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 02:02:33,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643696246] [2023-08-25 02:02:33,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:33,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:33,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:33,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:33,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:33,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:33,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states 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 02:02:33,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:33,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:33,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:33,847 INFO L124 PetriNetUnfolderBase]: 372/586 cut-off events. [2023-08-25 02:02:33,847 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2023-08-25 02:02:33,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1526 conditions, 586 events. 372/586 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2134 event pairs, 121 based on Foata normal form. 5/591 useless extension candidates. Maximal degree in co-relation 1520. Up to 545 conditions per place. [2023-08-25 02:02:33,851 INFO L140 encePairwiseOnDemand]: 210/214 looper letters, 31 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2023-08-25 02:02:33,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 185 flow [2023-08-25 02:02:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:33,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 02:02:33,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3909657320872274 [2023-08-25 02:02:33,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:33,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 02:02:33,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 02:02:33,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:33,856 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 75 flow. Second operand 3 states and 251 transitions. [2023-08-25 02:02:33,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 185 flow [2023-08-25 02:02:33,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:33,859 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 91 flow [2023-08-25 02:02:33,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-08-25 02:02:33,860 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -16 predicate places. [2023-08-25 02:02:33,860 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 91 flow [2023-08-25 02:02:33,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states 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 02:02:33,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:33,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:02:33,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:33,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash 14054589, now seen corresponding path program 1 times [2023-08-25 02:02:33,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:33,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676256728] [2023-08-25 02:02:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:33,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:33,935 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 02:02:33,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:33,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676256728] [2023-08-25 02:02:33,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676256728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:33,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:33,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:02:33,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42754060] [2023-08-25 02:02:33,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:33,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:33,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:33,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:33,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:33,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:33,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:33,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:33,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:33,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,038 INFO L124 PetriNetUnfolderBase]: 460/750 cut-off events. [2023-08-25 02:02:34,039 INFO L125 PetriNetUnfolderBase]: For 494/494 co-relation queries the response was YES. [2023-08-25 02:02:34,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2044 conditions, 750 events. 460/750 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3148 event pairs, 192 based on Foata normal form. 28/778 useless extension candidates. Maximal degree in co-relation 2037. Up to 475 conditions per place. [2023-08-25 02:02:34,044 INFO L140 encePairwiseOnDemand]: 211/214 looper letters, 32 selfloop transitions, 3 changer transitions 1/36 dead transitions. [2023-08-25 02:02:34,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 203 flow [2023-08-25 02:02:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-25 02:02:34,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3925233644859813 [2023-08-25 02:02:34,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-25 02:02:34,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-25 02:02:34,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-25 02:02:34,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states 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 02:02:34,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,048 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 91 flow. Second operand 3 states and 252 transitions. [2023-08-25 02:02:34,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 203 flow [2023-08-25 02:02:34,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:34,050 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 99 flow [2023-08-25 02:02:34,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-25 02:02:34,053 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-25 02:02:34,053 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 99 flow [2023-08-25 02:02:34,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:34,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:34,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:02:34,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:34,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:34,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1092972244, now seen corresponding path program 1 times [2023-08-25 02:02:34,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:34,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280809443] [2023-08-25 02:02:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:34,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:34,114 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 02:02:34,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280809443] [2023-08-25 02:02:34,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280809443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:34,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:34,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:02:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637072693] [2023-08-25 02:02:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:34,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:34,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:34,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:34,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:34,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:34,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:34,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:34,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,218 INFO L124 PetriNetUnfolderBase]: 566/952 cut-off events. [2023-08-25 02:02:34,219 INFO L125 PetriNetUnfolderBase]: For 1086/1086 co-relation queries the response was YES. [2023-08-25 02:02:34,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2597 conditions, 952 events. 566/952 cut-off events. For 1086/1086 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4431 event pairs, 247 based on Foata normal form. 28/980 useless extension candidates. Maximal degree in co-relation 2589. Up to 555 conditions per place. [2023-08-25 02:02:34,224 INFO L140 encePairwiseOnDemand]: 211/214 looper letters, 30 selfloop transitions, 3 changer transitions 1/34 dead transitions. [2023-08-25 02:02:34,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 204 flow [2023-08-25 02:02:34,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-08-25 02:02:34,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3894080996884735 [2023-08-25 02:02:34,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-08-25 02:02:34,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-08-25 02:02:34,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-08-25 02:02:34,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states 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 02:02:34,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,228 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 99 flow. Second operand 3 states and 250 transitions. [2023-08-25 02:02:34,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 204 flow [2023-08-25 02:02:34,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 198 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:34,231 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 105 flow [2023-08-25 02:02:34,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-25 02:02:34,232 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -12 predicate places. [2023-08-25 02:02:34,232 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 105 flow [2023-08-25 02:02:34,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:34,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:34,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 02:02:34,232 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:34,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1092316997, now seen corresponding path program 1 times [2023-08-25 02:02:34,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:34,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102516910] [2023-08-25 02:02:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:34,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:34,321 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 02:02:34,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102516910] [2023-08-25 02:02:34,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102516910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:34,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:34,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:02:34,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036484704] [2023-08-25 02:02:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:34,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:34,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:34,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:34,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:34,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:34,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:34,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,398 INFO L124 PetriNetUnfolderBase]: 378/687 cut-off events. [2023-08-25 02:02:34,398 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2023-08-25 02:02:34,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 687 events. 378/687 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3135 event pairs, 109 based on Foata normal form. 41/728 useless extension candidates. Maximal degree in co-relation 1973. Up to 559 conditions per place. [2023-08-25 02:02:34,402 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 36 selfloop transitions, 4 changer transitions 2/42 dead transitions. [2023-08-25 02:02:34,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 268 flow [2023-08-25 02:02:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-25 02:02:34,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3940809968847352 [2023-08-25 02:02:34,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-25 02:02:34,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-25 02:02:34,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-25 02:02:34,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states 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 02:02:34,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,406 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 105 flow. Second operand 3 states and 253 transitions. [2023-08-25 02:02:34,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 268 flow [2023-08-25 02:02:34,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 258 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:34,408 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 126 flow [2023-08-25 02:02:34,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-08-25 02:02:34,409 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -10 predicate places. [2023-08-25 02:02:34,409 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 126 flow [2023-08-25 02:02:34,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:02:34,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:34,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 02:02:34,410 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:34,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:34,410 INFO L85 PathProgramCache]: Analyzing trace with hash 254128585, now seen corresponding path program 1 times [2023-08-25 02:02:34,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:34,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405855143] [2023-08-25 02:02:34,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:34,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:34,441 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 02:02:34,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:34,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405855143] [2023-08-25 02:02:34,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405855143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:34,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:02:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951543360] [2023-08-25 02:02:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:34,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:02:34,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:02:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:02:34,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:34,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states 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 02:02:34,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:34,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:34,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,535 INFO L124 PetriNetUnfolderBase]: 458/858 cut-off events. [2023-08-25 02:02:34,535 INFO L125 PetriNetUnfolderBase]: For 973/973 co-relation queries the response was YES. [2023-08-25 02:02:34,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 858 events. 458/858 cut-off events. For 973/973 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4344 event pairs, 196 based on Foata normal form. 18/876 useless extension candidates. Maximal degree in co-relation 2867. Up to 540 conditions per place. [2023-08-25 02:02:34,539 INFO L140 encePairwiseOnDemand]: 211/214 looper letters, 32 selfloop transitions, 3 changer transitions 3/38 dead transitions. [2023-08-25 02:02:34,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 38 transitions, 259 flow [2023-08-25 02:02:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:02:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:02:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2023-08-25 02:02:34,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3862928348909657 [2023-08-25 02:02:34,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2023-08-25 02:02:34,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2023-08-25 02:02:34,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2023-08-25 02:02:34,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states 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 02:02:34,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 0 states have call successors, (0), 0 states 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 02:02:34,543 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 126 flow. Second operand 3 states and 248 transitions. [2023-08-25 02:02:34,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 38 transitions, 259 flow [2023-08-25 02:02:34,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:34,545 INFO L231 Difference]: Finished difference. Result has 40 places, 26 transitions, 133 flow [2023-08-25 02:02:34,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2023-08-25 02:02:34,546 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-25 02:02:34,546 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 133 flow [2023-08-25 02:02:34,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states 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 02:02:34,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:34,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 02:02:34,547 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:34,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash 525631392, now seen corresponding path program 1 times [2023-08-25 02:02:34,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:34,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827866721] [2023-08-25 02:02:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:34,643 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 02:02:34,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827866721] [2023-08-25 02:02:34,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827866721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:34,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:34,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:02:34,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79791203] [2023-08-25 02:02:34,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:34,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 02:02:34,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:34,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 02:02:34,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 02:02:34,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:34,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 02:02:34,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:34,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:34,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,733 INFO L124 PetriNetUnfolderBase]: 278/558 cut-off events. [2023-08-25 02:02:34,734 INFO L125 PetriNetUnfolderBase]: For 655/655 co-relation queries the response was YES. [2023-08-25 02:02:34,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1871 conditions, 558 events. 278/558 cut-off events. For 655/655 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2680 event pairs, 65 based on Foata normal form. 75/633 useless extension candidates. Maximal degree in co-relation 1860. Up to 273 conditions per place. [2023-08-25 02:02:34,736 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 37 selfloop transitions, 7 changer transitions 9/53 dead transitions. [2023-08-25 02:02:34,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 368 flow [2023-08-25 02:02:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 02:02:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 02:02:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-08-25 02:02:34,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39485981308411217 [2023-08-25 02:02:34,738 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-08-25 02:02:34,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-08-25 02:02:34,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-08-25 02:02:34,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 02:02:34,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states 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 02:02:34,741 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states 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 02:02:34,741 INFO L175 Difference]: Start difference. First operand has 40 places, 26 transitions, 133 flow. Second operand 4 states and 338 transitions. [2023-08-25 02:02:34,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 368 flow [2023-08-25 02:02:34,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 354 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 02:02:34,744 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 168 flow [2023-08-25 02:02:34,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2023-08-25 02:02:34,745 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -5 predicate places. [2023-08-25 02:02:34,745 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 168 flow [2023-08-25 02:02:34,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 02:02:34,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:02:34,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 02:02:34,746 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2023-08-25 02:02:34,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:02:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash -387655285, now seen corresponding path program 1 times [2023-08-25 02:02:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:02:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522342536] [2023-08-25 02:02:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:02:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:02:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:02:34,838 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 02:02:34,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:02:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522342536] [2023-08-25 02:02:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522342536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:02:34,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:02:34,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 02:02:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410911559] [2023-08-25 02:02:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:02:34,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 02:02:34,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:02:34,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 02:02:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 02:02:34,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 214 [2023-08-25 02:02:34,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states 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 02:02:34,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:02:34,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 214 [2023-08-25 02:02:34,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:02:34,918 INFO L124 PetriNetUnfolderBase]: 239/471 cut-off events. [2023-08-25 02:02:34,919 INFO L125 PetriNetUnfolderBase]: For 839/839 co-relation queries the response was YES. [2023-08-25 02:02:34,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 471 events. 239/471 cut-off events. For 839/839 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2145 event pairs, 58 based on Foata normal form. 39/510 useless extension candidates. Maximal degree in co-relation 1837. Up to 210 conditions per place. [2023-08-25 02:02:34,920 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-25 02:02:34,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 366 flow [2023-08-25 02:02:34,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 02:02:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 02:02:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 411 transitions. [2023-08-25 02:02:34,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3841121495327103 [2023-08-25 02:02:34,922 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 411 transitions. [2023-08-25 02:02:34,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 411 transitions. [2023-08-25 02:02:34,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:02:34,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 411 transitions. [2023-08-25 02:02:34,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 02:02:34,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 214.0) internal successors, (1284), 6 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states 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 02:02:34,925 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 214.0) internal successors, (1284), 6 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states 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 02:02:34,925 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 168 flow. Second operand 5 states and 411 transitions. [2023-08-25 02:02:34,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 366 flow [2023-08-25 02:02:34,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 328 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 02:02:34,928 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-25 02:02:34,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=214, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-25 02:02:34,928 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2023-08-25 02:02:34,929 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-25 02:02:34,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states 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 02:02:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-08-25 02:02:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-08-25 02:02:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-08-25 02:02:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (15 of 36 remaining) [2023-08-25 02:02:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-08-25 02:02:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-08-25 02:02:34,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-08-25 02:02:34,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-08-25 02:02:34,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-08-25 02:02:34,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 02:02:34,935 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:02:34,939 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:02:34,939 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:02:34,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:02:34 BasicIcfg [2023-08-25 02:02:34,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:02:34,942 INFO L158 Benchmark]: Toolchain (without parser) took 7066.43ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 333.9MB in the beginning and 295.7MB in the end (delta: 38.2MB). Peak memory consumption was 115.2MB. Max. memory is 16.0GB. [2023-08-25 02:02:34,943 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 358.6MB. Free memory is still 335.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:02:34,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.53ms. Allocated memory is still 358.6MB. Free memory was 333.9MB in the beginning and 313.5MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 02:02:34,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.27ms. Allocated memory is still 358.6MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 02:02:34,943 INFO L158 Benchmark]: Boogie Preprocessor took 24.08ms. Allocated memory is still 358.6MB. Free memory was 310.8MB in the beginning and 309.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:02:34,943 INFO L158 Benchmark]: RCFGBuilder took 611.37ms. Allocated memory is still 358.6MB. Free memory was 309.3MB in the beginning and 334.9MB in the end (delta: -25.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.0GB. [2023-08-25 02:02:34,944 INFO L158 Benchmark]: TraceAbstraction took 5894.73ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 334.3MB in the beginning and 295.7MB in the end (delta: 38.5MB). Peak memory consumption was 115.1MB. Max. memory is 16.0GB. [2023-08-25 02:02:34,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 358.6MB. Free memory is still 335.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 493.53ms. Allocated memory is still 358.6MB. Free memory was 333.9MB in the beginning and 313.5MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.27ms. Allocated memory is still 358.6MB. Free memory was 313.4MB in the beginning and 311.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.08ms. Allocated memory is still 358.6MB. Free memory was 310.8MB in the beginning and 309.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 611.37ms. Allocated memory is still 358.6MB. Free memory was 309.3MB in the beginning and 334.9MB in the end (delta: -25.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5894.73ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 334.3MB in the beginning and 295.7MB in the end (delta: 38.5MB). Peak memory consumption was 115.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 115 PlacesBefore, 48 PlacesAfterwards, 108 TransitionsBefore, 39 TransitionsAfterwards, 3660 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 103 TotalNumberOfCompositions, 13034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5784, independent: 5517, independent conditional: 0, independent unconditional: 5517, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2077, independent: 2003, independent conditional: 0, independent unconditional: 2003, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5784, independent: 3514, independent conditional: 0, independent unconditional: 3514, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 2077, unknown conditional: 0, unknown unconditional: 2077] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 754]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 781]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 781]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 145 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=9, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 02:02:34,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...