/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 08:44:11,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 08:44:11,076 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 08:44:11,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 08:44:11,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 08:44:11,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 08:44:11,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 08:44:11,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 08:44:11,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 08:44:11,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 08:44:11,110 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 08:44:11,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 08:44:11,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 08:44:11,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 08:44:11,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 08:44:11,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 08:44:11,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 08:44:11,113 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 08:44:11,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 08:44:11,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 08:44:11,114 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 08:44:11,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 08:44:11,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 08:44:11,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 08:44:11,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 08:44:11,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 08:44:11,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 08:44:11,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 08:44:11,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 08:44:11,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 08:44:11,116 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 08:44:11,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 08:44:11,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 08:44:11,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 08:44:11,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 08:44:11,430 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 08:44:11,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2023-08-25 08:44:12,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 08:44:12,789 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 08:44:12,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix000.opt.i [2023-08-25 08:44:12,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552041865/5063e775485e44a3b7d6dd4026a60061/FLAGf496dca74 [2023-08-25 08:44:12,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552041865/5063e775485e44a3b7d6dd4026a60061 [2023-08-25 08:44:12,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 08:44:12,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 08:44:12,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 08:44:12,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 08:44:12,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 08:44:12,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:44:12" (1/1) ... [2023-08-25 08:44:12,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5519209e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:12, skipping insertion in model container [2023-08-25 08:44:12,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:44:12" (1/1) ... [2023-08-25 08:44:12,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 08:44:13,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 08:44:13,172 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 08:44:13,188 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-25 08:44:13,189 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-25 08:44:13,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 08:44:13,265 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 08:44:13,265 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 08:44:13,270 INFO L206 MainTranslator]: Completed translation [2023-08-25 08:44:13,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13 WrapperNode [2023-08-25 08:44:13,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 08:44:13,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 08:44:13,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 08:44:13,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 08:44:13,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,360 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 933 [2023-08-25 08:44:13,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 08:44:13,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 08:44:13,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 08:44:13,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 08:44:13,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,409 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 08:44:13,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 08:44:13,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 08:44:13,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 08:44:13,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (1/1) ... [2023-08-25 08:44:13,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 08:44:13,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 08:44:13,474 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 08:44:13,489 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 08:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 08:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 08:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 08:44:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 08:44:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 08:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 08:44:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 08:44:13,501 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 08:44:13,653 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 08:44:13,654 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 08:44:14,566 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 08:47:15,810 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 08:47:15,810 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 08:47:15,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:47:15 BoogieIcfgContainer [2023-08-25 08:47:15,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 08:47:15,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 08:47:15,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 08:47:15,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 08:47:15,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:44:12" (1/3) ... [2023-08-25 08:47:15,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1069bc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:47:15, skipping insertion in model container [2023-08-25 08:47:15,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:44:13" (2/3) ... [2023-08-25 08:47:15,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1069bc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:47:15, skipping insertion in model container [2023-08-25 08:47:15,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:47:15" (3/3) ... [2023-08-25 08:47:15,817 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.opt.i [2023-08-25 08:47:15,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 08:47:15,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 283 error locations. [2023-08-25 08:47:15,831 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 08:47:36,800 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:47:36,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 380 transitions, 770 flow [2023-08-25 08:47:51,945 INFO L124 PetriNetUnfolderBase]: 3/378 cut-off events. [2023-08-25 08:47:51,946 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:47:51,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 378 events. 3/378 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2487 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 341. Up to 2 conditions per place. [2023-08-25 08:47:51,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 380 transitions, 770 flow [2023-08-25 08:47:51,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 378 transitions, 762 flow [2023-08-25 08:47:51,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:47:51,996 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 378 transitions, 762 flow [2023-08-25 08:47:52,001 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 378 transitions, 762 flow [2023-08-25 08:47:52,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 378 transitions, 762 flow [2023-08-25 08:48:04,371 INFO L124 PetriNetUnfolderBase]: 3/378 cut-off events. [2023-08-25 08:48:04,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:48:04,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 378 events. 3/378 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2501 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 341. Up to 2 conditions per place. [2023-08-25 08:48:04,401 INFO L119 LiptonReduction]: Number of co-enabled transitions 71784 [2023-08-25 08:48:08,646 INFO L134 LiptonReduction]: Checked pairs total: 720786 [2023-08-25 08:48:08,647 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-08-25 08:48:08,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 08:48:08,660 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;@2ff8f254, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:48:08,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2023-08-25 08:48:08,661 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:48:08,661 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 08:48:08,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:48:08,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:48:08,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 08:48:08,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:48:08,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:48:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 8995302, now seen corresponding path program 1 times [2023-08-25 08:48:08,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:48:08,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003322578] [2023-08-25 08:48:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:48:08,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:48:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:48:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 08:48:09,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:48:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003322578] [2023-08-25 08:48:09,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003322578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:48:09,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:48:09,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 08:48:09,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475603207] [2023-08-25 08:48:09,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:48:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 08:48:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:48:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 08:48:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 08:48:09,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 513 [2023-08-25 08:48:09,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 300 transitions, 606 flow. Second operand has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:48:09,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:48:09,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 513 [2023-08-25 08:48:09,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:50:03,052 INFO L124 PetriNetUnfolderBase]: 264/450 cut-off events. [2023-08-25 08:50:03,052 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 08:50:03,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 450 events. 264/450 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1642 event pairs, 264 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 906. Up to 451 conditions per place. [2023-08-25 08:50:03,055 INFO L140 encePairwiseOnDemand]: 231/513 looper letters, 18 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-25 08:50:03,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 78 flow [2023-08-25 08:50:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 08:50:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 08:50:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 464 transitions. [2023-08-25 08:50:03,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4522417153996101 [2023-08-25 08:50:03,065 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 464 transitions. [2023-08-25 08:50:03,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 464 transitions. [2023-08-25 08:50:03,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:50:03,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 464 transitions. [2023-08-25 08:50:03,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 232.0) internal successors, (464), 2 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:50:03,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:50:03,073 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 513.0) internal successors, (1539), 3 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:50:03,074 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 606 flow. Second operand 2 states and 464 transitions. [2023-08-25 08:50:03,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 78 flow [2023-08-25 08:50:03,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 08:50:03,077 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 40 flow [2023-08-25 08:50:03,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=24, PETRI_TRANSITIONS=18} [2023-08-25 08:50:03,080 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -282 predicate places. [2023-08-25 08:50:03,080 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 40 flow [2023-08-25 08:50:03,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:50:03,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:50:03,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 08:50:03,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 08:50:03,081 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:50:03,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:50:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 54892144, now seen corresponding path program 1 times [2023-08-25 08:50:03,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:50:03,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575384891] [2023-08-25 08:50:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:50:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:50:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:50:03,967 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 08:50:03,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:50:03,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575384891] [2023-08-25 08:50:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575384891] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:50:03,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:50:03,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 08:50:03,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189169687] [2023-08-25 08:50:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:50:03,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 08:50:03,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:50:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 08:50:03,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 08:50:03,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 513 [2023-08-25 08:50:03,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 40 flow. Second operand has 3 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 08:50:03,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:50:03,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 513 [2023-08-25 08:50:03,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:51:47,228 INFO L124 PetriNetUnfolderBase]: 224/385 cut-off events. [2023-08-25 08:51:47,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 08:51:47,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 385 events. 224/385 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1399 event pairs, 24 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 782. Up to 326 conditions per place. [2023-08-25 08:51:47,231 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 21 selfloop transitions, 2 changer transitions 2/25 dead transitions. [2023-08-25 08:51:47,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 104 flow [2023-08-25 08:51:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 08:51:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 08:51:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-25 08:51:47,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17478882391163092 [2023-08-25 08:51:47,239 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-25 08:51:47,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-25 08:51:47,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:51:47,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-25 08:51:47,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:51:47,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:51:47,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:51:47,243 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 40 flow. Second operand 3 states and 269 transitions. [2023-08-25 08:51:47,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 104 flow [2023-08-25 08:51:47,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 08:51:47,244 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 40 flow [2023-08-25 08:51:47,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-25 08:51:47,245 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -281 predicate places. [2023-08-25 08:51:47,245 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 40 flow [2023-08-25 08:51:47,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 08:51:47,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:51:47,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:51:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 08:51:47,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:51:47,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:51:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1212120560, now seen corresponding path program 1 times [2023-08-25 08:51:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:51:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037966114] [2023-08-25 08:51:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:51:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:51:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:51:48,157 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 08:51:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:51:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037966114] [2023-08-25 08:51:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037966114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:51:48,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:51:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 08:51:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146960399] [2023-08-25 08:51:48,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:51:48,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 08:51:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:51:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 08:51:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 08:51:48,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 513 [2023-08-25 08:51:48,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 40 flow. Second operand has 3 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 08:51:48,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:51:48,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 513 [2023-08-25 08:51:48,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:53:11,122 INFO L124 PetriNetUnfolderBase]: 153/272 cut-off events. [2023-08-25 08:53:11,122 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:53:11,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 272 events. 153/272 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 951 event pairs, 51 based on Foata normal form. 12/284 useless extension candidates. Maximal degree in co-relation 575. Up to 193 conditions per place. [2023-08-25 08:53:11,123 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 23 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2023-08-25 08:53:11,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 112 flow [2023-08-25 08:53:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 08:53:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 08:53:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-25 08:53:11,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17478882391163092 [2023-08-25 08:53:11,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-25 08:53:11,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-25 08:53:11,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:53:11,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-25 08:53:11,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:53:11,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:53:11,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:53:11,129 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 40 flow. Second operand 3 states and 269 transitions. [2023-08-25 08:53:11,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 112 flow [2023-08-25 08:53:11,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 08:53:11,130 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 44 flow [2023-08-25 08:53:11,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-25 08:53:11,130 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -281 predicate places. [2023-08-25 08:53:11,130 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 44 flow [2023-08-25 08:53:11,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 08:53:11,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:53:11,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:53:11,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 08:53:11,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:53:11,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:53:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1736423749, now seen corresponding path program 1 times [2023-08-25 08:53:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:53:11,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54346385] [2023-08-25 08:53:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:53:11,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:53:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:53:11,916 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 08:53:11,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:53:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54346385] [2023-08-25 08:53:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54346385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:53:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:53:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 08:53:11,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931841112] [2023-08-25 08:53:11,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:53:11,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 08:53:11,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:53:11,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 08:53:11,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 08:53:11,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 513 [2023-08-25 08:53:11,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 44 flow. Second operand has 3 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 08:53:11,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:53:11,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 513 [2023-08-25 08:53:11,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:54:28,543 INFO L124 PetriNetUnfolderBase]: 143/256 cut-off events. [2023-08-25 08:54:28,543 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-08-25 08:54:28,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 256 events. 143/256 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 805 event pairs, 47 based on Foata normal form. 6/262 useless extension candidates. Maximal degree in co-relation 577. Up to 178 conditions per place. [2023-08-25 08:54:28,544 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 20 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2023-08-25 08:54:28,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 103 flow [2023-08-25 08:54:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 08:54:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 08:54:28,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-25 08:54:28,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1728395061728395 [2023-08-25 08:54:28,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-25 08:54:28,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-25 08:54:28,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:54:28,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-25 08:54:28,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:54:28,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:54:28,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:54:28,550 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 44 flow. Second operand 3 states and 266 transitions. [2023-08-25 08:54:28,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 103 flow [2023-08-25 08:54:28,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 97 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 08:54:28,550 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 48 flow [2023-08-25 08:54:28,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2023-08-25 08:54:28,551 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -280 predicate places. [2023-08-25 08:54:28,551 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 48 flow [2023-08-25 08:54:28,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 08:54:28,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:54:28,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:54:28,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 08:54:28,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:54:28,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:54:28,552 INFO L85 PathProgramCache]: Analyzing trace with hash 80635099, now seen corresponding path program 1 times [2023-08-25 08:54:28,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:54:28,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913775016] [2023-08-25 08:54:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:54:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:54:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:54:32,869 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 08:54:32,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:54:32,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913775016] [2023-08-25 08:54:32,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913775016] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:54:32,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:54:32,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 08:54:32,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73504483] [2023-08-25 08:54:32,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:54:32,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 08:54:32,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:54:32,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 08:54:32,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 08:54:32,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 513 [2023-08-25 08:54:32,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:54:32,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:54:32,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 513 [2023-08-25 08:54:32,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:55:10,239 INFO L124 PetriNetUnfolderBase]: 51/118 cut-off events. [2023-08-25 08:55:10,240 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-25 08:55:10,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 118 events. 51/118 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 312 event pairs, 21 based on Foata normal form. 20/138 useless extension candidates. Maximal degree in co-relation 285. Up to 72 conditions per place. [2023-08-25 08:55:10,240 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-25 08:55:10,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 130 flow [2023-08-25 08:55:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 08:55:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 08:55:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-25 08:55:10,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1760883690708252 [2023-08-25 08:55:10,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-25 08:55:10,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-25 08:55:10,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:55:10,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-25 08:55:10,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:10,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:10,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 513.0) internal successors, (2052), 4 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:10,249 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 48 flow. Second operand 3 states and 271 transitions. [2023-08-25 08:55:10,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 130 flow [2023-08-25 08:55:10,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 08:55:10,250 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 63 flow [2023-08-25 08:55:10,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-25 08:55:10,251 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -279 predicate places. [2023-08-25 08:55:10,251 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 63 flow [2023-08-25 08:55:10,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:10,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:55:10,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:55:10,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 08:55:10,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:55:10,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:55:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 933421802, now seen corresponding path program 1 times [2023-08-25 08:55:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:55:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641414162] [2023-08-25 08:55:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:55:10,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:55:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:55:16,235 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 08:55:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:55:16,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641414162] [2023-08-25 08:55:16,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641414162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:55:16,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:55:16,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 08:55:16,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174966768] [2023-08-25 08:55:16,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:55:16,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 08:55:16,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:55:16,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 08:55:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 08:55:16,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 513 [2023-08-25 08:55:16,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:16,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:55:16,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 513 [2023-08-25 08:55:16,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:55:47,553 INFO L124 PetriNetUnfolderBase]: 28/72 cut-off events. [2023-08-25 08:55:47,554 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 08:55:47,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 72 events. 28/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 18 based on Foata normal form. 9/81 useless extension candidates. Maximal degree in co-relation 197. Up to 47 conditions per place. [2023-08-25 08:55:47,554 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 22 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2023-08-25 08:55:47,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 139 flow [2023-08-25 08:55:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 08:55:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 08:55:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-08-25 08:55:47,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17153996101364521 [2023-08-25 08:55:47,563 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 352 transitions. [2023-08-25 08:55:47,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 352 transitions. [2023-08-25 08:55:47,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:55:47,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 352 transitions. [2023-08-25 08:55:47,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:47,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:47,567 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:47,567 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 63 flow. Second operand 4 states and 352 transitions. [2023-08-25 08:55:47,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 139 flow [2023-08-25 08:55:47,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 126 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 08:55:47,581 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 68 flow [2023-08-25 08:55:47,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2023-08-25 08:55:47,584 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -278 predicate places. [2023-08-25 08:55:47,585 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 68 flow [2023-08-25 08:55:47,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:47,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:55:47,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:55:47,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 08:55:47,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:55:47,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:55:47,587 INFO L85 PathProgramCache]: Analyzing trace with hash 953113070, now seen corresponding path program 1 times [2023-08-25 08:55:47,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:55:47,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202309327] [2023-08-25 08:55:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:55:47,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:55:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 08:55:50,555 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 08:55:50,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 08:55:50,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202309327] [2023-08-25 08:55:50,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202309327] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 08:55:50,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 08:55:50,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 08:55:50,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120420297] [2023-08-25 08:55:50,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 08:55:50,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 08:55:50,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 08:55:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 08:55:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 08:55:50,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 513 [2023-08-25 08:55:50,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:55:50,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 08:55:50,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 513 [2023-08-25 08:55:50,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 08:56:21,745 INFO L124 PetriNetUnfolderBase]: 33/91 cut-off events. [2023-08-25 08:56:21,746 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-25 08:56:21,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 91 events. 33/91 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 265 event pairs, 0 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 244. Up to 59 conditions per place. [2023-08-25 08:56:21,750 INFO L140 encePairwiseOnDemand]: 510/513 looper letters, 19 selfloop transitions, 1 changer transitions 14/34 dead transitions. [2023-08-25 08:56:21,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 199 flow [2023-08-25 08:56:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 08:56:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 08:56:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2023-08-25 08:56:21,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17105263157894737 [2023-08-25 08:56:21,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 351 transitions. [2023-08-25 08:56:21,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 351 transitions. [2023-08-25 08:56:21,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 08:56:21,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 351 transitions. [2023-08-25 08:56:21,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:56:21,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:56:21,763 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 513.0) internal successors, (2565), 5 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:56:21,763 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 68 flow. Second operand 4 states and 351 transitions. [2023-08-25 08:56:21,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 199 flow [2023-08-25 08:56:21,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 180 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 08:56:21,766 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 65 flow [2023-08-25 08:56:21,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2023-08-25 08:56:21,769 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -275 predicate places. [2023-08-25 08:56:21,770 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 65 flow [2023-08-25 08:56:21,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 08:56:21,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:56:21,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 08:56:21,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 08:56:21,772 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-25 08:56:21,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:56:21,773 INFO L85 PathProgramCache]: Analyzing trace with hash 134641950, now seen corresponding path program 2 times [2023-08-25 08:56:21,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:56:21,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800726826] [2023-08-25 08:56:21,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:56:21,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:56:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-08-25 08:57:56,663 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 08:57:56,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 08:57:56,708 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:304) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-25 08:57:56,711 INFO L158 Benchmark]: Toolchain (without parser) took 823899.94ms. Allocated memory was 360.7MB in the beginning and 15.7GB in the end (delta: 15.3GB). Free memory was 335.6MB in the beginning and 11.9GB in the end (delta: -11.5GB). Peak memory consumption was 9.7GB. Max. memory is 16.0GB. [2023-08-25 08:57:56,711 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory was 336.8MB in the beginning and 336.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 08:57:56,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.02ms. Allocated memory is still 360.7MB. Free memory was 335.1MB in the beginning and 307.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 08:57:56,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.81ms. Allocated memory is still 360.7MB. Free memory was 307.8MB in the beginning and 303.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 08:57:56,712 INFO L158 Benchmark]: Boogie Preprocessor took 55.92ms. Allocated memory is still 360.7MB. Free memory was 303.1MB in the beginning and 299.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 08:57:56,712 INFO L158 Benchmark]: RCFGBuilder took 182394.61ms. Allocated memory was 360.7MB in the beginning and 15.2GB in the end (delta: 14.9GB). Free memory was 298.5MB in the beginning and 13.5GB in the end (delta: -13.2GB). Peak memory consumption was 2.9GB. Max. memory is 16.0GB. [2023-08-25 08:57:56,712 INFO L158 Benchmark]: TraceAbstraction took 640896.65ms. Allocated memory was 15.2GB in the beginning and 15.7GB in the end (delta: 455.1MB). Free memory was 13.5GB in the beginning and 11.9GB in the end (delta: 1.7GB). Peak memory consumption was 8.1GB. Max. memory is 16.0GB. [2023-08-25 08:57:56,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory was 336.8MB in the beginning and 336.6MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 457.02ms. Allocated memory is still 360.7MB. Free memory was 335.1MB in the beginning and 307.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 89.81ms. Allocated memory is still 360.7MB. Free memory was 307.8MB in the beginning and 303.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 55.92ms. Allocated memory is still 360.7MB. Free memory was 303.1MB in the beginning and 299.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 182394.61ms. Allocated memory was 360.7MB in the beginning and 15.2GB in the end (delta: 14.9GB). Free memory was 298.5MB in the beginning and 13.5GB in the end (delta: -13.2GB). Peak memory consumption was 2.9GB. Max. memory is 16.0GB. * TraceAbstraction took 640896.65ms. Allocated memory was 15.2GB in the beginning and 15.7GB in the end (delta: 455.1MB). Free memory was 13.5GB in the beginning and 11.9GB in the end (delta: 1.7GB). Peak memory consumption was 8.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.6s, 382 PlacesBefore, 306 PlacesAfterwards, 378 TransitionsBefore, 300 TransitionsAfterwards, 71784 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 133 TotalNumberOfCompositions, 720786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 151628, independent: 147820, independent conditional: 0, independent unconditional: 147820, dependent: 3808, dependent conditional: 0, dependent unconditional: 3808, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19370, independent: 18988, independent conditional: 0, independent unconditional: 18988, dependent: 382, dependent conditional: 0, dependent unconditional: 382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 151628, independent: 128832, independent conditional: 0, independent unconditional: 128832, dependent: 3426, dependent conditional: 0, dependent unconditional: 3426, unknown: 19370, unknown conditional: 0, unknown unconditional: 19370] , Statistics on independence cache: Total cache size (in pairs): 4452, Positive cache size: 4183, Positive conditional cache size: 0, Positive unconditional cache size: 4183, Negative cache size: 269, Negative conditional cache size: 0, Negative unconditional cache size: 269, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown