/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/rfi008.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 23:37:13,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 23:37:13,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 23:37:13,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 23:37:13,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 23:37:13,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 23:37:13,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 23:37:13,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 23:37:13,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 23:37:13,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 23:37:13,961 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 23:37:13,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 23:37:13,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 23:37:13,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 23:37:13,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 23:37:13,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 23:37:13,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 23:37:13,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 23:37:13,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 23:37:13,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 23:37:13,964 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 23:37:13,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 23:37:13,965 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 23:37:13,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 23:37:13,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 23:37:13,966 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 23:37:13,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 23:37:13,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:37:13,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 23:37:13,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 23:37:13,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 23:37:13,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 23:37:13,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 23:37:13,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 23:37:13,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 23:37:13,969 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 23:37:14,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 23:37:14,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 23:37:14,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 23:37:14,266 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 23:37:14,266 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 23:37:14,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi008.opt.i [2023-08-24 23:37:15,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 23:37:15,718 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 23:37:15,719 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi008.opt.i [2023-08-24 23:37:15,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e45e4f8/ce575564a1cc40538cb4854ef85f08b1/FLAGd8effa50a [2023-08-24 23:37:15,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e45e4f8/ce575564a1cc40538cb4854ef85f08b1 [2023-08-24 23:37:15,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 23:37:15,755 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 23:37:15,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 23:37:15,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 23:37:15,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 23:37:15,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:37:15" (1/1) ... [2023-08-24 23:37:15,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25aa5231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:15, skipping insertion in model container [2023-08-24 23:37:15,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:37:15" (1/1) ... [2023-08-24 23:37:15,820 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 23:37:16,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:37:16,241 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 23:37:16,266 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-24 23:37:16,268 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-24 23:37:16,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 23:37:16,369 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:37:16,369 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 23:37:16,375 INFO L206 MainTranslator]: Completed translation [2023-08-24 23:37:16,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16 WrapperNode [2023-08-24 23:37:16,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 23:37:16,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 23:37:16,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 23:37:16,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 23:37:16,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,445 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 933 [2023-08-24 23:37:16,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 23:37:16,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 23:37:16,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 23:37:16,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 23:37:16,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 23:37:16,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 23:37:16,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 23:37:16,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 23:37:16,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (1/1) ... [2023-08-24 23:37:16,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 23:37:16,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 23:37:16,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 23:37:16,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 23:37:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 23:37:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 23:37:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-24 23:37:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-24 23:37:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 23:37:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 23:37:16,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 23:37:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 23:37:16,590 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 23:37:16,795 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 23:37:16,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 23:37:18,004 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 23:40:13,173 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 23:40:13,173 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 23:40:13,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:40:13 BoogieIcfgContainer [2023-08-24 23:40:13,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 23:40:13,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 23:40:13,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 23:40:13,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 23:40:13,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 11:37:15" (1/3) ... [2023-08-24 23:40:13,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36599913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:40:13, skipping insertion in model container [2023-08-24 23:40:13,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:37:16" (2/3) ... [2023-08-24 23:40:13,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36599913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:40:13, skipping insertion in model container [2023-08-24 23:40:13,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:40:13" (3/3) ... [2023-08-24 23:40:13,182 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi008.opt.i [2023-08-24 23:40:13,195 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 23:40:13,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 283 error locations. [2023-08-24 23:40:13,196 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 23:40:35,711 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 23:40:35,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 380 transitions, 770 flow [2023-08-24 23:40:48,780 INFO L124 PetriNetUnfolderBase]: 3/378 cut-off events. [2023-08-24 23:40:48,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:40:48,790 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. [2023-08-24 23:40:48,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 380 transitions, 770 flow [2023-08-24 23:40:48,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 378 transitions, 762 flow [2023-08-24 23:40:48,810 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 23:40:48,817 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 378 transitions, 762 flow [2023-08-24 23:40:48,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 378 transitions, 762 flow [2023-08-24 23:40:48,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 378 transitions, 762 flow [2023-08-24 23:41:00,738 INFO L124 PetriNetUnfolderBase]: 3/378 cut-off events. [2023-08-24 23:41:00,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:41:00,742 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. [2023-08-24 23:41:00,765 INFO L119 LiptonReduction]: Number of co-enabled transitions 71784 [2023-08-24 23:41:05,784 INFO L134 LiptonReduction]: Checked pairs total: 721508 [2023-08-24 23:41:05,784 INFO L136 LiptonReduction]: Total number of compositions: 131 [2023-08-24 23:41:05,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 23:41:05,801 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;@1ab2f655, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 23:41:05,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2023-08-24 23:41:05,803 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 23:41:05,803 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-24 23:41:05,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:41:05,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:41:05,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-24 23:41:05,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:41:05,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:41:05,808 INFO L85 PathProgramCache]: Analyzing trace with hash 8993380, now seen corresponding path program 1 times [2023-08-24 23:41:05,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:41:05,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159050709] [2023-08-24 23:41:05,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:41:05,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:41:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:41:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:41:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:41:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159050709] [2023-08-24 23:41:06,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159050709] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:41:06,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:41:06,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:41:06,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685447365] [2023-08-24 23:41:06,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:41:06,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 23:41:06,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:41:06,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 23:41:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 23:41:06,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 511 [2023-08-24 23:41:06,931 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) [2023-08-24 23:41:06,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:41:06,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 511 [2023-08-24 23:41:06,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:42:51,832 INFO L124 PetriNetUnfolderBase]: 264/450 cut-off events. [2023-08-24 23:42:51,832 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 23:42:51,833 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 32. Compared 1647 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. [2023-08-24 23:42:51,835 INFO L140 encePairwiseOnDemand]: 229/511 looper letters, 18 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-24 23:42:51,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 78 flow [2023-08-24 23:42:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 23:42:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 23:42:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 464 transitions. [2023-08-24 23:42:51,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45401174168297453 [2023-08-24 23:42:51,847 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 464 transitions. [2023-08-24 23:42:51,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 464 transitions. [2023-08-24 23:42:51,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:42:51,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 464 transitions. [2023-08-24 23:42:51,854 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) [2023-08-24 23:42:51,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:42:51,858 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:42:51,860 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 606 flow. Second operand 2 states and 464 transitions. [2023-08-24 23:42:51,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 78 flow [2023-08-24 23:42:51,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 23:42:51,863 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 40 flow [2023-08-24 23:42:51,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:42:51,867 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -282 predicate places. [2023-08-24 23:42:51,868 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 40 flow [2023-08-24 23:42:51,868 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) [2023-08-24 23:42:51,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:42:51,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 23:42:51,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 23:42:51,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:42:51,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:42:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 53045102, now seen corresponding path program 1 times [2023-08-24 23:42:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:42:51,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255946396] [2023-08-24 23:42:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:42:51,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:42:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:42:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:42:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:42:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255946396] [2023-08-24 23:42:52,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255946396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:42:52,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:42:52,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:42:52,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065986897] [2023-08-24 23:42:52,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:42:52,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:42:52,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:42:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:42:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:42:52,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 511 [2023-08-24 23:42:52,781 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) [2023-08-24 23:42:52,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:42:52,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 511 [2023-08-24 23:42:52,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:44:31,026 INFO L124 PetriNetUnfolderBase]: 224/385 cut-off events. [2023-08-24 23:44:31,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 23:44:31,027 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 1439 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. [2023-08-24 23:44:31,028 INFO L140 encePairwiseOnDemand]: 508/511 looper letters, 21 selfloop transitions, 2 changer transitions 2/25 dead transitions. [2023-08-24 23:44:31,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 104 flow [2023-08-24 23:44:31,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:44:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:44:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-24 23:44:31,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17547292889758642 [2023-08-24 23:44:31,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-24 23:44:31,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-24 23:44:31,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:44:31,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-24 23:44:31,034 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) [2023-08-24 23:44:31,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:44:31,037 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:44:31,038 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 40 flow. Second operand 3 states and 269 transitions. [2023-08-24 23:44:31,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 104 flow [2023-08-24 23:44:31,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 23:44:31,039 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 40 flow [2023-08-24 23:44:31,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:44:31,039 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -281 predicate places. [2023-08-24 23:44:31,040 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 40 flow [2023-08-24 23:44:31,040 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) [2023-08-24 23:44:31,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:44:31,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:44:31,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 23:44:31,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:44:31,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:44:31,041 INFO L85 PathProgramCache]: Analyzing trace with hash -562888756, now seen corresponding path program 1 times [2023-08-24 23:44:31,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:44:31,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713690076] [2023-08-24 23:44:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:44:31,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:44:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:44:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:44:32,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:44:32,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713690076] [2023-08-24 23:44:32,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713690076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:44:32,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:44:32,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:44:32,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788902146] [2023-08-24 23:44:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:44:32,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:44:32,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:44:32,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:44:32,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:44:32,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 511 [2023-08-24 23:44:32,082 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) [2023-08-24 23:44:32,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:44:32,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 511 [2023-08-24 23:44:32,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:45:39,267 INFO L124 PetriNetUnfolderBase]: 157/278 cut-off events. [2023-08-24 23:45:39,267 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-24 23:45:39,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 278 events. 157/278 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 892 event pairs, 53 based on Foata normal form. 10/288 useless extension candidates. Maximal degree in co-relation 584. Up to 200 conditions per place. [2023-08-24 23:45:39,269 INFO L140 encePairwiseOnDemand]: 508/511 looper letters, 20 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2023-08-24 23:45:39,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 22 transitions, 96 flow [2023-08-24 23:45:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:45:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:45:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-24 23:45:39,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1735159817351598 [2023-08-24 23:45:39,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-24 23:45:39,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-24 23:45:39,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:45:39,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-24 23:45:39,273 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) [2023-08-24 23:45:39,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:45:39,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:45:39,277 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 40 flow. Second operand 3 states and 266 transitions. [2023-08-24 23:45:39,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 22 transitions, 96 flow [2023-08-24 23:45:39,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 22 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 23:45:39,278 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 44 flow [2023-08-24 23:45:39,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:45:39,279 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -281 predicate places. [2023-08-24 23:45:39,279 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 44 flow [2023-08-24 23:45:39,279 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) [2023-08-24 23:45:39,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:45:39,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:45:39,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 23:45:39,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:45:39,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:45:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash 153294132, now seen corresponding path program 1 times [2023-08-24 23:45:39,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:45:39,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415026370] [2023-08-24 23:45:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:45:39,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:45:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:45:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:45:41,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:45:41,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415026370] [2023-08-24 23:45:41,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415026370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:45:41,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:45:41,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 23:45:41,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140088975] [2023-08-24 23:45:41,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:45:41,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:45:41,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:45:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:45:41,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:45:41,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 511 [2023-08-24 23:45:41,881 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) [2023-08-24 23:45:41,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:45:41,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 511 [2023-08-24 23:45:41,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:46:48,964 INFO L124 PetriNetUnfolderBase]: 143/256 cut-off events. [2023-08-24 23:46:48,964 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-08-24 23:46:48,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 256 events. 143/256 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 880 event pairs, 47 based on Foata normal form. 8/264 useless extension candidates. Maximal degree in co-relation 567. Up to 177 conditions per place. [2023-08-24 23:46:48,966 INFO L140 encePairwiseOnDemand]: 508/511 looper letters, 23 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2023-08-24 23:46:48,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 117 flow [2023-08-24 23:46:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:46:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:46:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-24 23:46:48,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17547292889758642 [2023-08-24 23:46:48,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-24 23:46:48,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-24 23:46:48,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:46:48,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-24 23:46:48,972 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) [2023-08-24 23:46:48,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:46:48,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:46:48,975 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 44 flow. Second operand 3 states and 269 transitions. [2023-08-24 23:46:48,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 117 flow [2023-08-24 23:46:48,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 23:46:48,976 INFO L231 Difference]: Finished difference. Result has 26 places, 16 transitions, 48 flow [2023-08-24 23:46:48,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:46:48,977 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -280 predicate places. [2023-08-24 23:46:48,977 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 48 flow [2023-08-24 23:46:48,977 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) [2023-08-24 23:46:48,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:46:48,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:46:48,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 23:46:48,978 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:46:48,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:46:48,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1075492345, now seen corresponding path program 1 times [2023-08-24 23:46:48,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:46:48,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193592523] [2023-08-24 23:46:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:46:48,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:46:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:46:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:46:53,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:46:53,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193592523] [2023-08-24 23:46:53,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193592523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:46:53,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:46:53,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 23:46:53,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884157725] [2023-08-24 23:46:53,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:46:53,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 23:46:53,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:46:53,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 23:46:53,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 23:46:53,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 511 [2023-08-24 23:46:53,096 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) [2023-08-24 23:46:53,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:46:53,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 511 [2023-08-24 23:46:53,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:47:27,152 INFO L124 PetriNetUnfolderBase]: 51/118 cut-off events. [2023-08-24 23:47:27,153 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 23:47:27,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 118 events. 51/118 cut-off events. For 16/16 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 288. Up to 72 conditions per place. [2023-08-24 23:47:27,153 INFO L140 encePairwiseOnDemand]: 507/511 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-24 23:47:27,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 130 flow [2023-08-24 23:47:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 23:47:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 23:47:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-24 23:47:27,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17677756033920417 [2023-08-24 23:47:27,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-24 23:47:27,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-24 23:47:27,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:47:27,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-24 23:47:27,157 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) [2023-08-24 23:47:27,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:47:27,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 511.0) internal successors, (2044), 4 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:47:27,160 INFO L175 Difference]: Start difference. First operand has 26 places, 16 transitions, 48 flow. Second operand 3 states and 271 transitions. [2023-08-24 23:47:27,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 130 flow [2023-08-24 23:47:27,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 23:47:27,161 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 63 flow [2023-08-24 23:47:27,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:47:27,162 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -279 predicate places. [2023-08-24 23:47:27,162 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 63 flow [2023-08-24 23:47:27,162 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) [2023-08-24 23:47:27,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:47:27,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:47:27,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 23:47:27,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:47:27,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:47:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1520285444, now seen corresponding path program 1 times [2023-08-24 23:47:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:47:27,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20634076] [2023-08-24 23:47:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:47:27,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:47:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:47:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:47:32,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:47:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20634076] [2023-08-24 23:47:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20634076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:47:32,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:47:32,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 23:47:32,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854885853] [2023-08-24 23:47:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:47:32,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:47:32,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:47:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:47:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:47:32,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 511 [2023-08-24 23:47:32,930 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) [2023-08-24 23:47:32,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:47:32,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 511 [2023-08-24 23:47:32,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:47:58,690 INFO L124 PetriNetUnfolderBase]: 28/72 cut-off events. [2023-08-24 23:47:58,691 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 23:47:58,691 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. [2023-08-24 23:47:58,691 INFO L140 encePairwiseOnDemand]: 507/511 looper letters, 22 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2023-08-24 23:47:58,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 139 flow [2023-08-24 23:47:58,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 23:47:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 23:47:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-08-24 23:47:58,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17221135029354206 [2023-08-24 23:47:58,694 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 352 transitions. [2023-08-24 23:47:58,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 352 transitions. [2023-08-24 23:47:58,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:47:58,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 352 transitions. [2023-08-24 23:47:58,695 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) [2023-08-24 23:47:58,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 511.0) internal successors, (2555), 5 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:47:58,699 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 511.0) internal successors, (2555), 5 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:47:58,699 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 63 flow. Second operand 4 states and 352 transitions. [2023-08-24 23:47:58,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 139 flow [2023-08-24 23:47:58,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 126 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-24 23:47:58,700 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 68 flow [2023-08-24 23:47:58,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:47:58,701 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -278 predicate places. [2023-08-24 23:47:58,701 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 68 flow [2023-08-24 23:47:58,701 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) [2023-08-24 23:47:58,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:47:58,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:47:58,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 23:47:58,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:47:58,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:47:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1976026512, now seen corresponding path program 1 times [2023-08-24 23:47:58,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:47:58,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853887172] [2023-08-24 23:47:58,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:47:58,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:48:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 23:48:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 23:48:01,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 23:48:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853887172] [2023-08-24 23:48:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853887172] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 23:48:01,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 23:48:01,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 23:48:01,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131616975] [2023-08-24 23:48:01,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 23:48:01,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 23:48:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 23:48:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 23:48:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 23:48:01,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 511 [2023-08-24 23:48:01,407 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) [2023-08-24 23:48:01,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 23:48:01,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 511 [2023-08-24 23:48:01,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 23:48:30,096 INFO L124 PetriNetUnfolderBase]: 33/91 cut-off events. [2023-08-24 23:48:30,096 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-24 23:48:30,096 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 266 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. [2023-08-24 23:48:30,096 INFO L140 encePairwiseOnDemand]: 508/511 looper letters, 19 selfloop transitions, 1 changer transitions 14/34 dead transitions. [2023-08-24 23:48:30,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 199 flow [2023-08-24 23:48:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 23:48:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 23:48:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2023-08-24 23:48:30,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.17172211350293543 [2023-08-24 23:48:30,098 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 351 transitions. [2023-08-24 23:48:30,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 351 transitions. [2023-08-24 23:48:30,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 23:48:30,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 351 transitions. [2023-08-24 23:48:30,099 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) [2023-08-24 23:48:30,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 511.0) internal successors, (2555), 5 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:48:30,101 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 511.0) internal successors, (2555), 5 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 23:48:30,101 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 68 flow. Second operand 4 states and 351 transitions. [2023-08-24 23:48:30,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 199 flow [2023-08-24 23:48:30,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 180 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-24 23:48:30,103 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 65 flow [2023-08-24 23:48:30,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, 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} [2023-08-24 23:48:30,103 INFO L281 CegarLoopForPetriNet]: 306 programPoint places, -275 predicate places. [2023-08-24 23:48:30,103 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 65 flow [2023-08-24 23:48:30,104 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) [2023-08-24 23:48:30,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 23:48:30,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 23:48:30,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 23:48:30,104 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2023-08-24 23:48:30,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 23:48:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1157555392, now seen corresponding path program 2 times [2023-08-24 23:48:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 23:48:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366883338] [2023-08-24 23:48:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 23:48:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 23:48:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-08-24 23:50:33,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 23:50:33,195 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) [2023-08-24 23:50:33,198 INFO L158 Benchmark]: Toolchain (without parser) took 797442.97ms. Allocated memory was 377.5MB in the beginning and 15.7GB in the end (delta: 15.4GB). Free memory was 352.8MB in the beginning and 8.9GB in the end (delta: -8.6GB). Peak memory consumption was 13.3GB. Max. memory is 16.0GB. [2023-08-24 23:50:33,198 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 377.5MB. Free memory is still 354.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 23:50:33,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.88ms. Allocated memory is still 377.5MB. Free memory was 352.3MB in the beginning and 325.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-24 23:50:33,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.78ms. Allocated memory is still 377.5MB. Free memory was 325.0MB in the beginning and 320.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 23:50:33,199 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 377.5MB. Free memory was 320.4MB in the beginning and 315.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 23:50:33,200 INFO L158 Benchmark]: RCFGBuilder took 176676.89ms. Allocated memory was 377.5MB in the beginning and 15.5GB in the end (delta: 15.1GB). Free memory was 315.7MB in the beginning and 13.4GB in the end (delta: -13.1GB). Peak memory consumption was 4.1GB. Max. memory is 16.0GB. [2023-08-24 23:50:33,200 INFO L158 Benchmark]: TraceAbstraction took 620019.76ms. Allocated memory was 15.5GB in the beginning and 15.7GB in the end (delta: 245.4MB). Free memory was 13.4GB in the beginning and 8.9GB in the end (delta: 4.5GB). Peak memory consumption was 11.3GB. Max. memory is 16.0GB. [2023-08-24 23:50:33,202 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 377.5MB. Free memory is still 354.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 618.88ms. Allocated memory is still 377.5MB. Free memory was 352.3MB in the beginning and 325.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 68.78ms. Allocated memory is still 377.5MB. Free memory was 325.0MB in the beginning and 320.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 377.5MB. Free memory was 320.4MB in the beginning and 315.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 176676.89ms. Allocated memory was 377.5MB in the beginning and 15.5GB in the end (delta: 15.1GB). Free memory was 315.7MB in the beginning and 13.4GB in the end (delta: -13.1GB). Peak memory consumption was 4.1GB. Max. memory is 16.0GB. * TraceAbstraction took 620019.76ms. Allocated memory was 15.5GB in the beginning and 15.7GB in the end (delta: 245.4MB). Free memory was 13.4GB in the beginning and 8.9GB in the end (delta: 4.5GB). Peak memory consumption was 11.3GB. 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: 17.0s, 382 PlacesBefore, 306 PlacesAfterwards, 378 TransitionsBefore, 300 TransitionsAfterwards, 71784 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 131 TotalNumberOfCompositions, 721508 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 151171, independent: 147360, independent conditional: 0, independent unconditional: 147360, dependent: 3811, dependent conditional: 0, dependent unconditional: 3811, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 19373, independent: 18991, independent conditional: 0, independent unconditional: 18991, dependent: 382, dependent conditional: 0, dependent unconditional: 382, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 151171, independent: 128369, independent conditional: 0, independent unconditional: 128369, dependent: 3429, dependent conditional: 0, dependent unconditional: 3429, unknown: 19373, unknown conditional: 0, unknown unconditional: 19373] , 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