/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe036.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 16:15:26,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 16:15:26,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 16:15:26,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 16:15:26,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 16:15:26,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 16:15:26,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 16:15:26,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 16:15:26,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 16:15:26,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 16:15:26,411 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 16:15:26,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 16:15:26,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 16:15:26,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 16:15:26,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 16:15:26,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 16:15:26,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 16:15:26,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 16:15:26,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 16:15:26,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 16:15:26,414 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 16:15:26,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 16:15:26,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 16:15:26,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 16:15:26,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 16:15:26,416 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 16:15:26,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 16:15:26,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:15:26,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 16:15:26,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 16:15:26,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 16:15:26,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 16:15:26,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 16:15:26,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 16:15:26,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 16:15:26,418 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 16:15:26,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 16:15:26,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 16:15:26,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 16:15:26,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 16:15:26,722 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 16:15:26,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036.i [2023-08-25 16:15:27,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 16:15:28,145 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 16:15:28,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036.i [2023-08-25 16:15:28,162 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e2f9883/ca26848b84204f14a2b71b760809a666/FLAG1f0f990b8 [2023-08-25 16:15:28,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e2f9883/ca26848b84204f14a2b71b760809a666 [2023-08-25 16:15:28,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 16:15:28,185 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 16:15:28,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 16:15:28,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 16:15:28,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 16:15:28,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ef3b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28, skipping insertion in model container [2023-08-25 16:15:28,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,222 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 16:15:28,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:15:28,560 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 16:15:28,589 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:15:28,590 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 16:15:28,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:15:28,642 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:15:28,642 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 16:15:28,648 INFO L206 MainTranslator]: Completed translation [2023-08-25 16:15:28,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28 WrapperNode [2023-08-25 16:15:28,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 16:15:28,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 16:15:28,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 16:15:28,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 16:15:28,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,707 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-08-25 16:15:28,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 16:15:28,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 16:15:28,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 16:15:28,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 16:15:28,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 16:15:28,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 16:15:28,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 16:15:28,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 16:15:28,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (1/1) ... [2023-08-25 16:15:28,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:15:28,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 16:15:28,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 16:15:28,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 16:15:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 16:15:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 16:15:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 16:15:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 16:15:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 16:15:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 16:15:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 16:15:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 16:15:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 16:15:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 16:15:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 16:15:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 16:15:28,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 16:15:28,815 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 16:15:28,921 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 16:15:28,923 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 16:15:29,078 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 16:15:29,168 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 16:15:29,169 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 16:15:29,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:15:29 BoogieIcfgContainer [2023-08-25 16:15:29,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 16:15:29,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 16:15:29,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 16:15:29,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 16:15:29,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:15:28" (1/3) ... [2023-08-25 16:15:29,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66aa0fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:15:29, skipping insertion in model container [2023-08-25 16:15:29,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:15:28" (2/3) ... [2023-08-25 16:15:29,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66aa0fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:15:29, skipping insertion in model container [2023-08-25 16:15:29,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:15:29" (3/3) ... [2023-08-25 16:15:29,178 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2023-08-25 16:15:29,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 16:15:29,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 16:15:29,192 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 16:15:29,231 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 16:15:29,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 196 flow [2023-08-25 16:15:29,293 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-25 16:15:29,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:29,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-25 16:15:29,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 196 flow [2023-08-25 16:15:29,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 91 transitions, 188 flow [2023-08-25 16:15:29,305 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 16:15:29,312 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 91 transitions, 188 flow [2023-08-25 16:15:29,315 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 91 transitions, 188 flow [2023-08-25 16:15:29,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 188 flow [2023-08-25 16:15:29,341 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-25 16:15:29,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:29,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-08-25 16:15:29,343 INFO L119 LiptonReduction]: Number of co-enabled transitions 2200 [2023-08-25 16:15:32,036 INFO L134 LiptonReduction]: Checked pairs total: 6673 [2023-08-25 16:15:32,036 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-08-25 16:15:32,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 16:15:32,052 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;@312f58dc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 16:15:32,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-25 16:15:32,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 16:15:32,054 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 16:15:32,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:32,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:32,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 16:15:32,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 16:15:32,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash 464794, now seen corresponding path program 1 times [2023-08-25 16:15:32,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:32,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324026456] [2023-08-25 16:15:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:32,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324026456] [2023-08-25 16:15:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324026456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:32,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:32,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 16:15:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642111227] [2023-08-25 16:15:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:32,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 16:15:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:32,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 16:15:32,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 16:15:32,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 189 [2023-08-25 16:15:32,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:32,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 189 [2023-08-25 16:15:32,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:32,299 INFO L124 PetriNetUnfolderBase]: 87/160 cut-off events. [2023-08-25 16:15:32,299 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 16:15:32,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 160 events. 87/160 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 478 event pairs, 87 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 324. Up to 161 conditions per place. [2023-08-25 16:15:32,301 INFO L140 encePairwiseOnDemand]: 171/189 looper letters, 12 selfloop transitions, 0 changer transitions 1/13 dead transitions. [2023-08-25 16:15:32,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 58 flow [2023-08-25 16:15:32,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 16:15:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 16:15:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2023-08-25 16:15:32,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42063492063492064 [2023-08-25 16:15:32,312 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 159 transitions. [2023-08-25 16:15:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 159 transitions. [2023-08-25 16:15:32,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:32,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 159 transitions. [2023-08-25 16:15:32,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,320 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,321 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 2 states and 159 transitions. [2023-08-25 16:15:32,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 58 flow [2023-08-25 16:15:32,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 16:15:32,325 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 28 flow [2023-08-25 16:15:32,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-25 16:15:32,333 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -18 predicate places. [2023-08-25 16:15:32,334 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 28 flow [2023-08-25 16:15:32,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.5) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:32,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 16:15:32,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 16:15:32,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 16:15:32,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:32,336 INFO L85 PathProgramCache]: Analyzing trace with hash 963136593, now seen corresponding path program 1 times [2023-08-25 16:15:32,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:32,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770762124] [2023-08-25 16:15:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:32,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:32,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:32,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:32,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770762124] [2023-08-25 16:15:32,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770762124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:32,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:32,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:15:32,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695689649] [2023-08-25 16:15:32,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:32,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:15:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:15:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:15:32,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 189 [2023-08-25 16:15:32,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:32,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 189 [2023-08-25 16:15:32,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:32,657 INFO L124 PetriNetUnfolderBase]: 27/66 cut-off events. [2023-08-25 16:15:32,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:15:32,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 66 events. 27/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 10 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 142. Up to 43 conditions per place. [2023-08-25 16:15:32,659 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 17 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-25 16:15:32,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 20 transitions, 86 flow [2023-08-25 16:15:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:15:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:15:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2023-08-25 16:15:32,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2023-08-25 16:15:32,666 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2023-08-25 16:15:32,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2023-08-25 16:15:32,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:32,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2023-08-25 16:15:32,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,672 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 28 flow. Second operand 3 states and 210 transitions. [2023-08-25 16:15:32,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 20 transitions, 86 flow [2023-08-25 16:15:32,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 16:15:32,674 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 47 flow [2023-08-25 16:15:32,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-25 16:15:32,675 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -16 predicate places. [2023-08-25 16:15:32,675 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 47 flow [2023-08-25 16:15:32,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:32,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:32,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 16:15:32,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 16:15:32,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash -416664190, now seen corresponding path program 1 times [2023-08-25 16:15:32,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:32,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441660636] [2023-08-25 16:15:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:32,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:32,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:32,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441660636] [2023-08-25 16:15:32,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441660636] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:32,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:32,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:32,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630243785] [2023-08-25 16:15:32,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:32,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:32,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:32,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:32,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:32,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 189 [2023-08-25 16:15:32,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:32,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 189 [2023-08-25 16:15:32,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:32,904 INFO L124 PetriNetUnfolderBase]: 15/42 cut-off events. [2023-08-25 16:15:32,905 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 16:15:32,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 42 events. 15/42 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 8 based on Foata normal form. 6/48 useless extension candidates. Maximal degree in co-relation 114. Up to 24 conditions per place. [2023-08-25 16:15:32,905 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-25 16:15:32,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 101 flow [2023-08-25 16:15:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:32,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 273 transitions. [2023-08-25 16:15:32,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2023-08-25 16:15:32,909 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 273 transitions. [2023-08-25 16:15:32,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 273 transitions. [2023-08-25 16:15:32,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:32,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 273 transitions. [2023-08-25 16:15:32,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.25) internal successors, (273), 4 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,913 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,913 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 47 flow. Second operand 4 states and 273 transitions. [2023-08-25 16:15:32,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 101 flow [2023-08-25 16:15:32,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:15:32,915 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 60 flow [2023-08-25 16:15:32,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2023-08-25 16:15:32,916 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -13 predicate places. [2023-08-25 16:15:32,916 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 60 flow [2023-08-25 16:15:32,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:32,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:32,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 16:15:32,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 16:15:32,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1625215249, now seen corresponding path program 1 times [2023-08-25 16:15:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309080589] [2023-08-25 16:15:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:32,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:32,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309080589] [2023-08-25 16:15:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309080589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:32,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:32,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847006231] [2023-08-25 16:15:32,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:32,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:32,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:32,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 189 [2023-08-25 16:15:32,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:32,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:32,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 189 [2023-08-25 16:15:32,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:33,041 INFO L124 PetriNetUnfolderBase]: 16/50 cut-off events. [2023-08-25 16:15:33,042 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-08-25 16:15:33,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 50 events. 16/50 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 150. Up to 32 conditions per place. [2023-08-25 16:15:33,043 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 14 selfloop transitions, 1 changer transitions 10/25 dead transitions. [2023-08-25 16:15:33,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 163 flow [2023-08-25 16:15:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2023-08-25 16:15:33,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2023-08-25 16:15:33,046 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 270 transitions. [2023-08-25 16:15:33,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 270 transitions. [2023-08-25 16:15:33,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:33,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 270 transitions. [2023-08-25 16:15:33,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,051 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 60 flow. Second operand 4 states and 270 transitions. [2023-08-25 16:15:33,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 163 flow [2023-08-25 16:15:33,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 144 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 16:15:33,053 INFO L231 Difference]: Finished difference. Result has 27 places, 14 transitions, 57 flow [2023-08-25 16:15:33,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=14} [2023-08-25 16:15:33,055 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -10 predicate places. [2023-08-25 16:15:33,055 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 57 flow [2023-08-25 16:15:33,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:15:33,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:15:33,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 16:15:33,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-08-25 16:15:33,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:15:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1558594435, now seen corresponding path program 2 times [2023-08-25 16:15:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:15:33,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693423252] [2023-08-25 16:15:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:15:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:15:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:15:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:15:33,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:15:33,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693423252] [2023-08-25 16:15:33,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693423252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:15:33,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:15:33,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 16:15:33,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298295156] [2023-08-25 16:15:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:15:33,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 16:15:33,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:15:33,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 16:15:33,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 16:15:33,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 189 [2023-08-25 16:15:33,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:15:33,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 189 [2023-08-25 16:15:33,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:15:33,155 INFO L124 PetriNetUnfolderBase]: 11/39 cut-off events. [2023-08-25 16:15:33,155 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 16:15:33,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 39 events. 11/39 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 7 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 118. Up to 20 conditions per place. [2023-08-25 16:15:33,156 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-25 16:15:33,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 114 flow [2023-08-25 16:15:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 16:15:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 16:15:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2023-08-25 16:15:33,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3505291005291005 [2023-08-25 16:15:33,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 265 transitions. [2023-08-25 16:15:33,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 265 transitions. [2023-08-25 16:15:33,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:15:33,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 265 transitions. [2023-08-25 16:15:33,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,161 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,161 INFO L175 Difference]: Start difference. First operand has 27 places, 14 transitions, 57 flow. Second operand 4 states and 265 transitions. [2023-08-25 16:15:33,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 114 flow [2023-08-25 16:15:33,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:15:33,163 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2023-08-25 16:15:33,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2023-08-25 16:15:33,165 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -10 predicate places. [2023-08-25 16:15:33,165 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2023-08-25 16:15:33,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 16:15:33,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2023-08-25 16:15:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2023-08-25 16:15:33,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2023-08-25 16:15:33,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2023-08-25 16:15:33,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2023-08-25 16:15:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2023-08-25 16:15:33,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (12 of 30 remaining) [2023-08-25 16:15:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2023-08-25 16:15:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 30 remaining) [2023-08-25 16:15:33,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2023-08-25 16:15:33,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2023-08-25 16:15:33,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2023-08-25 16:15:33,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 16:15:33,179 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-25 16:15:33,184 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 16:15:33,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 16:15:33,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:15:33 BasicIcfg [2023-08-25 16:15:33,187 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 16:15:33,188 INFO L158 Benchmark]: Toolchain (without parser) took 5002.60ms. Allocated memory was 396.4MB in the beginning and 545.3MB in the end (delta: 148.9MB). Free memory was 371.3MB in the beginning and 331.7MB in the end (delta: 39.6MB). Peak memory consumption was 190.0MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,190 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 396.4MB. Free memory was 374.3MB in the beginning and 374.3MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 16:15:33,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.15ms. Allocated memory is still 396.4MB. Free memory was 371.3MB in the beginning and 350.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.83ms. Allocated memory is still 396.4MB. Free memory was 350.9MB in the beginning and 348.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,191 INFO L158 Benchmark]: Boogie Preprocessor took 33.77ms. Allocated memory is still 396.4MB. Free memory was 348.9MB in the beginning and 347.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,191 INFO L158 Benchmark]: RCFGBuilder took 428.11ms. Allocated memory is still 396.4MB. Free memory was 347.2MB in the beginning and 323.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,191 INFO L158 Benchmark]: TraceAbstraction took 4013.87ms. Allocated memory was 396.4MB in the beginning and 545.3MB in the end (delta: 148.9MB). Free memory was 323.1MB in the beginning and 331.7MB in the end (delta: -8.6MB). Peak memory consumption was 141.8MB. Max. memory is 16.0GB. [2023-08-25 16:15:33,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 396.4MB. Free memory was 374.3MB in the beginning and 374.3MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 463.15ms. Allocated memory is still 396.4MB. Free memory was 371.3MB in the beginning and 350.9MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.83ms. Allocated memory is still 396.4MB. Free memory was 350.9MB in the beginning and 348.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.77ms. Allocated memory is still 396.4MB. Free memory was 348.9MB in the beginning and 347.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 428.11ms. Allocated memory is still 396.4MB. Free memory was 347.2MB in the beginning and 323.7MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 4013.87ms. Allocated memory was 396.4MB in the beginning and 545.3MB in the end (delta: 148.9MB). Free memory was 323.1MB in the beginning and 331.7MB in the end (delta: -8.6MB). Peak memory consumption was 141.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 95 PlacesBefore, 37 PlacesAfterwards, 91 TransitionsBefore, 31 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 96 TotalNumberOfCompositions, 6673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3713, independent: 3546, independent conditional: 0, independent unconditional: 3546, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1300, independent: 1261, independent conditional: 0, independent unconditional: 1261, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3713, independent: 2285, independent conditional: 0, independent unconditional: 2285, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 1300, unknown conditional: 0, unknown unconditional: 1300] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 30 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 16:15:33,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...