./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01b_inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01b_inc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:44:28,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:44:28,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:44:28,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:44:28,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:44:28,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:44:28,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:44:28,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:44:28,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:44:28,457 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:44:28,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:44:28,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:44:28,457 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:44:28,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:44:28,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:44:28,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:44:28,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:44:28,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:44:28,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:44:28,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:44:28,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:44:28,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:44:28,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:44:28,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:44:28,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:44:28,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:44:28,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:44:28,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:44:28,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:44:28,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:44:28,467 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 [2024-10-14 16:44:28,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:44:28,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:44:28,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:44:28,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:44:28,711 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:44:28,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01b_inc.i [2024-10-14 16:44:30,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:44:30,243 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:44:30,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01b_inc.i [2024-10-14 16:44:30,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec067799b/95e983830d3848b8916b3fcb690e4320/FLAG27011c642 [2024-10-14 16:44:30,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec067799b/95e983830d3848b8916b3fcb690e4320 [2024-10-14 16:44:30,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:44:30,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:44:30,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:44:30,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:44:30,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:44:30,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:30,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b18076f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30, skipping insertion in model container [2024-10-14 16:44:30,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:30,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:44:30,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:44:30,911 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:44:30,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:44:30,993 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:44:30,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30 WrapperNode [2024-10-14 16:44:30,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:44:30,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:44:30,995 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:44:30,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:44:31,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,036 INFO L138 Inliner]: procedures = 171, calls = 17, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 89 [2024-10-14 16:44:31,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:44:31,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:44:31,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:44:31,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:44:31,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:44:31,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:44:31,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:44:31,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:44:31,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (1/1) ... [2024-10-14 16:44:31,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:44:31,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:44:31,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 16:44:31,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 16:44:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-14 16:44:31,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-14 16:44:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 16:44:31,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:44:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:44:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 16:44:31,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:44:31,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:44:31,176 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:44:31,301 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:44:31,303 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:44:31,450 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:44:31,450 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:44:31,602 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:44:31,602 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 16:44:31,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:31 BoogieIcfgContainer [2024-10-14 16:44:31,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:44:31,606 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:44:31,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:44:31,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:44:31,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:44:30" (1/3) ... [2024-10-14 16:44:31,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6168c183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:44:31, skipping insertion in model container [2024-10-14 16:44:31,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:44:30" (2/3) ... [2024-10-14 16:44:31,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6168c183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:44:31, skipping insertion in model container [2024-10-14 16:44:31,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:31" (3/3) ... [2024-10-14 16:44:31,614 INFO L112 eAbstractionObserver]: Analyzing ICFG 01b_inc.i [2024-10-14 16:44:31,627 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:44:31,627 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-14 16:44:31,628 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:44:31,668 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:31,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 51 transitions, 106 flow [2024-10-14 16:44:31,736 INFO L124 PetriNetUnfolderBase]: 3/60 cut-off events. [2024-10-14 16:44:31,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:31,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2024-10-14 16:44:31,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 51 transitions, 106 flow [2024-10-14 16:44:31,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 51 transitions, 106 flow [2024-10-14 16:44:31,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:31,760 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@159e0976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:31,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-14 16:44:31,769 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:31,769 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-14 16:44:31,770 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:31,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:31,771 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:31,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-14 16:44:31,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:31,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1276334773, now seen corresponding path program 1 times [2024-10-14 16:44:31,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:31,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913297901] [2024-10-14 16:44:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:31,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:31,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913297901] [2024-10-14 16:44:31,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913297901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:31,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:31,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:31,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521958774] [2024-10-14 16:44:31,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:31,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:31,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:31,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 51 [2024-10-14 16:44:31,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 106 flow. Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2024-10-14 16:44:31,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:31,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 51 [2024-10-14 16:44:31,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:32,042 INFO L124 PetriNetUnfolderBase]: 1/42 cut-off events. [2024-10-14 16:44:32,042 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:44:32,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 42 events. 1/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 7/46 useless extension candidates. Maximal degree in co-relation 30. Up to 7 conditions per place. [2024-10-14 16:44:32,043 INFO L140 encePairwiseOnDemand]: 41/51 looper letters, 6 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2024-10-14 16:44:32,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 92 flow [2024-10-14 16:44:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:32,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 86 transitions. [2024-10-14 16:44:32,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2024-10-14 16:44:32,053 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 106 flow. Second operand 2 states and 86 transitions. [2024-10-14 16:44:32,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 92 flow [2024-10-14 16:44:32,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 92 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:32,056 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 80 flow [2024-10-14 16:44:32,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2024-10-14 16:44:32,063 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2024-10-14 16:44:32,063 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 80 flow [2024-10-14 16:44:32,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 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) [2024-10-14 16:44:32,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:44:32,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-14 16:44:32,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1802940494, now seen corresponding path program 1 times [2024-10-14 16:44:32,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804187566] [2024-10-14 16:44:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:32,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:32,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804187566] [2024-10-14 16:44:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804187566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:32,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:32,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946830081] [2024-10-14 16:44:32,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:32,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:32,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:32,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:32,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 51 [2024-10-14 16:44:32,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-14 16:44:32,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:32,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 51 [2024-10-14 16:44:32,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:32,184 INFO L124 PetriNetUnfolderBase]: 1/40 cut-off events. [2024-10-14 16:44:32,185 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:44:32,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 40 events. 1/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2024-10-14 16:44:32,186 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 7 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-10-14 16:44:32,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 96 flow [2024-10-14 16:44:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-14 16:44:32,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-10-14 16:44:32,188 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 80 flow. Second operand 3 states and 99 transitions. [2024-10-14 16:44:32,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 96 flow [2024-10-14 16:44:32,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:32,189 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 82 flow [2024-10-14 16:44:32,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-10-14 16:44:32,190 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2024-10-14 16:44:32,190 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 82 flow [2024-10-14 16:44:32,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-14 16:44:32,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,190 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:44:32,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-14 16:44:32,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash -263702602, now seen corresponding path program 1 times [2024-10-14 16:44:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035029634] [2024-10-14 16:44:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:32,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:44:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:32,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:44:32,229 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:44:32,230 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-10-14 16:44:32,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-10-14 16:44:32,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-10-14 16:44:32,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-10-14 16:44:32,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-10-14 16:44:32,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-10-14 16:44:32,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-10-14 16:44:32,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-10-14 16:44:32,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-10-14 16:44:32,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-10-14 16:44:32,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-10-14 16:44:32,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:44:32,235 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:44:32,237 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:44:32,237 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 16:44:32,251 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:32,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 168 flow [2024-10-14 16:44:32,268 INFO L124 PetriNetUnfolderBase]: 5/99 cut-off events. [2024-10-14 16:44:32,268 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:44:32,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 99 events. 5/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 235 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2024-10-14 16:44:32,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 79 transitions, 168 flow [2024-10-14 16:44:32,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 168 flow [2024-10-14 16:44:32,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:32,271 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@159e0976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:32,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-14 16:44:32,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:32,274 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-14 16:44:32,274 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:32,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 16:44:32,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1063583878, now seen corresponding path program 1 times [2024-10-14 16:44:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987427447] [2024-10-14 16:44:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:32,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987427447] [2024-10-14 16:44:32,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987427447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:32,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:32,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:32,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933884050] [2024-10-14 16:44:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:32,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:32,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:32,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 79 [2024-10-14 16:44:32,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 168 flow. Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2024-10-14 16:44:32,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:32,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 79 [2024-10-14 16:44:32,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:32,354 INFO L124 PetriNetUnfolderBase]: 36/186 cut-off events. [2024-10-14 16:44:32,354 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-14 16:44:32,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 186 events. 36/186 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 768 event pairs, 30 based on Foata normal form. 43/204 useless extension candidates. Maximal degree in co-relation 200. Up to 73 conditions per place. [2024-10-14 16:44:32,360 INFO L140 encePairwiseOnDemand]: 61/79 looper letters, 12 selfloop transitions, 0 changer transitions 0/58 dead transitions. [2024-10-14 16:44:32,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 150 flow [2024-10-14 16:44:32,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 128 transitions. [2024-10-14 16:44:32,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.810126582278481 [2024-10-14 16:44:32,361 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 168 flow. Second operand 2 states and 128 transitions. [2024-10-14 16:44:32,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 150 flow [2024-10-14 16:44:32,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:32,362 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 126 flow [2024-10-14 16:44:32,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2024-10-14 16:44:32,363 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -19 predicate places. [2024-10-14 16:44:32,363 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 126 flow [2024-10-14 16:44:32,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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) [2024-10-14 16:44:32,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:44:32,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 16:44:32,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash 98123773, now seen corresponding path program 1 times [2024-10-14 16:44:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033229295] [2024-10-14 16:44:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:32,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:32,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033229295] [2024-10-14 16:44:32,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033229295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:32,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:32,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652577814] [2024-10-14 16:44:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:32,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:32,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:32,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 79 [2024-10-14 16:44:32,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-10-14 16:44:32,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:32,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 79 [2024-10-14 16:44:32,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:32,521 INFO L124 PetriNetUnfolderBase]: 128/405 cut-off events. [2024-10-14 16:44:32,521 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-10-14 16:44:32,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 405 events. 128/405 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2051 event pairs, 48 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 697. Up to 184 conditions per place. [2024-10-14 16:44:32,527 INFO L140 encePairwiseOnDemand]: 63/79 looper letters, 31 selfloop transitions, 12 changer transitions 0/77 dead transitions. [2024-10-14 16:44:32,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 255 flow [2024-10-14 16:44:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-10-14 16:44:32,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 16:44:32,530 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 126 flow. Second operand 3 states and 158 transitions. [2024-10-14 16:44:32,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 255 flow [2024-10-14 16:44:32,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 77 transitions, 255 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:32,533 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 230 flow [2024-10-14 16:44:32,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2024-10-14 16:44:32,533 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -15 predicate places. [2024-10-14 16:44:32,534 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 230 flow [2024-10-14 16:44:32,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-10-14 16:44:32,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,534 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:44:32,535 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 16:44:32,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash 206027356, now seen corresponding path program 1 times [2024-10-14 16:44:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081618621] [2024-10-14 16:44:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:32,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:44:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:32,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:44:32,558 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-10-14 16:44:32,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-10-14 16:44:32,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-10-14 16:44:32,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-10-14 16:44:32,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-10-14 16:44:32,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-10-14 16:44:32,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-10-14 16:44:32,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-10-14 16:44:32,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:44:32,563 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:44:32,564 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:44:32,564 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-14 16:44:32,616 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:32,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 232 flow [2024-10-14 16:44:32,631 INFO L124 PetriNetUnfolderBase]: 7/138 cut-off events. [2024-10-14 16:44:32,631 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 16:44:32,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 138 events. 7/138 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 362 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 103. Up to 8 conditions per place. [2024-10-14 16:44:32,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 107 transitions, 232 flow [2024-10-14 16:44:32,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 107 transitions, 232 flow [2024-10-14 16:44:32,638 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:32,639 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@159e0976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:32,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-10-14 16:44:32,643 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:32,645 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-14 16:44:32,646 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:32,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-14 16:44:32,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1344551306, now seen corresponding path program 1 times [2024-10-14 16:44:32,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070226034] [2024-10-14 16:44:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:32,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:32,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070226034] [2024-10-14 16:44:32,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070226034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:32,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:32,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:32,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450035611] [2024-10-14 16:44:32,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:32,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:32,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:32,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:32,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:32,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 107 [2024-10-14 16:44:32,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 232 flow. Second operand has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 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) [2024-10-14 16:44:32,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:32,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 107 [2024-10-14 16:44:32,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:32,887 INFO L124 PetriNetUnfolderBase]: 417/1132 cut-off events. [2024-10-14 16:44:32,887 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-10-14 16:44:32,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 1132 events. 417/1132 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7996 event pairs, 390 based on Foata normal form. 259/1249 useless extension candidates. Maximal degree in co-relation 1454. Up to 649 conditions per place. [2024-10-14 16:44:32,895 INFO L140 encePairwiseOnDemand]: 81/107 looper letters, 18 selfloop transitions, 0 changer transitions 0/78 dead transitions. [2024-10-14 16:44:32,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 210 flow [2024-10-14 16:44:32,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 170 transitions. [2024-10-14 16:44:32,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.794392523364486 [2024-10-14 16:44:32,898 INFO L175 Difference]: Start difference. First operand has 110 places, 107 transitions, 232 flow. Second operand 2 states and 170 transitions. [2024-10-14 16:44:32,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 210 flow [2024-10-14 16:44:32,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 78 transitions, 208 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:32,900 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 172 flow [2024-10-14 16:44:32,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=172, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2024-10-14 16:44:32,900 INFO L277 CegarLoopForPetriNet]: 110 programPoint places, -27 predicate places. [2024-10-14 16:44:32,901 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 172 flow [2024-10-14 16:44:32,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 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) [2024-10-14 16:44:32,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:32,901 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:32,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:44:32,901 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-14 16:44:32,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash -671333523, now seen corresponding path program 1 times [2024-10-14 16:44:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:32,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753251314] [2024-10-14 16:44:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:32,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753251314] [2024-10-14 16:44:32,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753251314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:32,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:32,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:32,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852277813] [2024-10-14 16:44:32,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:32,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:32,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:32,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-10-14 16:44:32,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-10-14 16:44:32,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:32,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-10-14 16:44:32,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:33,657 INFO L124 PetriNetUnfolderBase]: 3441/6858 cut-off events. [2024-10-14 16:44:33,659 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-10-14 16:44:33,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12632 conditions, 6858 events. 3441/6858 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 55932 event pairs, 1354 based on Foata normal form. 0/6402 useless extension candidates. Maximal degree in co-relation 12626. Up to 3764 conditions per place. [2024-10-14 16:44:33,709 INFO L140 encePairwiseOnDemand]: 83/107 looper letters, 47 selfloop transitions, 18 changer transitions 0/107 dead transitions. [2024-10-14 16:44:33,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 107 transitions, 370 flow [2024-10-14 16:44:33,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:33,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-10-14 16:44:33,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6417445482866043 [2024-10-14 16:44:33,712 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 172 flow. Second operand 3 states and 206 transitions. [2024-10-14 16:44:33,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 107 transitions, 370 flow [2024-10-14 16:44:33,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 107 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:33,714 INFO L231 Difference]: Finished difference. Result has 87 places, 96 transitions, 328 flow [2024-10-14 16:44:33,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=87, PETRI_TRANSITIONS=96} [2024-10-14 16:44:33,715 INFO L277 CegarLoopForPetriNet]: 110 programPoint places, -23 predicate places. [2024-10-14 16:44:33,715 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 96 transitions, 328 flow [2024-10-14 16:44:33,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-10-14 16:44:33,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:33,716 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:33,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 16:44:33,716 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-10-14 16:44:33,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2121806097, now seen corresponding path program 1 times [2024-10-14 16:44:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:33,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762448499] [2024-10-14 16:44:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:33,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:33,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:44:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:33,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:44:33,734 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:44:33,734 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-10-14 16:44:33,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2024-10-14 16:44:33,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-10-14 16:44:33,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-10-14 16:44:33,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-10-14 16:44:33,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-10-14 16:44:33,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-10-14 16:44:33,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-10-14 16:44:33,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-10-14 16:44:33,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 16:44:33,740 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 16:44:33,741 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:44:33,741 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-14 16:44:33,764 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:33,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 135 transitions, 298 flow [2024-10-14 16:44:33,778 INFO L124 PetriNetUnfolderBase]: 9/177 cut-off events. [2024-10-14 16:44:33,778 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-14 16:44:33,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 177 events. 9/177 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 146. Up to 10 conditions per place. [2024-10-14 16:44:33,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 135 transitions, 298 flow [2024-10-14 16:44:33,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 135 transitions, 298 flow [2024-10-14 16:44:33,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:33,782 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@159e0976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:33,782 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-10-14 16:44:33,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:33,784 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-10-14 16:44:33,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:33,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:33,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:33,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 16:44:33,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:33,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1653157105, now seen corresponding path program 1 times [2024-10-14 16:44:33,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:33,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447855900] [2024-10-14 16:44:33,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:33,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:33,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:33,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447855900] [2024-10-14 16:44:33,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447855900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:33,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:33,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:33,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034013117] [2024-10-14 16:44:33,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:33,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:33,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:33,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:33,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 135 [2024-10-14 16:44:33,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 298 flow. Second operand has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 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) [2024-10-14 16:44:33,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:33,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 135 [2024-10-14 16:44:33,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:35,244 INFO L124 PetriNetUnfolderBase]: 3774/7790 cut-off events. [2024-10-14 16:44:35,244 INFO L125 PetriNetUnfolderBase]: For 2401/2401 co-relation queries the response was YES. [2024-10-14 16:44:35,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14224 conditions, 7790 events. 3774/7790 cut-off events. For 2401/2401 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 69291 event pairs, 3630 based on Foata normal form. 1555/8532 useless extension candidates. Maximal degree in co-relation 10768. Up to 5185 conditions per place. [2024-10-14 16:44:35,362 INFO L140 encePairwiseOnDemand]: 101/135 looper letters, 24 selfloop transitions, 0 changer transitions 0/98 dead transitions. [2024-10-14 16:44:35,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 272 flow [2024-10-14 16:44:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:35,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 212 transitions. [2024-10-14 16:44:35,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7851851851851852 [2024-10-14 16:44:35,363 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 298 flow. Second operand 2 states and 212 transitions. [2024-10-14 16:44:35,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 272 flow [2024-10-14 16:44:35,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 98 transitions, 266 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:35,366 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 218 flow [2024-10-14 16:44:35,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=218, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2024-10-14 16:44:35,372 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, -35 predicate places. [2024-10-14 16:44:35,373 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 218 flow [2024-10-14 16:44:35,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 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) [2024-10-14 16:44:35,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:35,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:35,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 16:44:35,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 16:44:35,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:35,373 INFO L85 PathProgramCache]: Analyzing trace with hash -453898924, now seen corresponding path program 1 times [2024-10-14 16:44:35,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:35,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144326249] [2024-10-14 16:44:35,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:35,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:35,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:35,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144326249] [2024-10-14 16:44:35,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144326249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:35,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:35,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135133657] [2024-10-14 16:44:35,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:35,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:35,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:35,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:35,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:35,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 135 [2024-10-14 16:44:35,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 98 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2024-10-14 16:44:35,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:35,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 135 [2024-10-14 16:44:35,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:44,129 INFO L124 PetriNetUnfolderBase]: 69719/115332 cut-off events. [2024-10-14 16:44:44,130 INFO L125 PetriNetUnfolderBase]: For 6259/6259 co-relation queries the response was YES. [2024-10-14 16:44:44,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217267 conditions, 115332 events. 69719/115332 cut-off events. For 6259/6259 co-relation queries the response was YES. Maximal size of possible extension queue 4491. Compared 1118906 event pairs, 26548 based on Foata normal form. 0/106854 useless extension candidates. Maximal degree in co-relation 217260. Up to 66562 conditions per place. [2024-10-14 16:44:45,320 INFO L140 encePairwiseOnDemand]: 103/135 looper letters, 63 selfloop transitions, 24 changer transitions 0/137 dead transitions. [2024-10-14 16:44:45,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 137 transitions, 485 flow [2024-10-14 16:44:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:45,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2024-10-14 16:44:45,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6271604938271605 [2024-10-14 16:44:45,322 INFO L175 Difference]: Start difference. First operand has 104 places, 98 transitions, 218 flow. Second operand 3 states and 254 transitions. [2024-10-14 16:44:45,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 137 transitions, 485 flow [2024-10-14 16:44:45,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 137 transitions, 485 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:45,330 INFO L231 Difference]: Finished difference. Result has 108 places, 122 transitions, 426 flow [2024-10-14 16:44:45,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=108, PETRI_TRANSITIONS=122} [2024-10-14 16:44:45,331 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, -31 predicate places. [2024-10-14 16:44:45,332 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 122 transitions, 426 flow [2024-10-14 16:44:45,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2024-10-14 16:44:45,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:45,332 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:45,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 16:44:45,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 16:44:45,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:45,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1364662031, now seen corresponding path program 1 times [2024-10-14 16:44:45,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:45,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627295853] [2024-10-14 16:44:45,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:45,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:45,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:45,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627295853] [2024-10-14 16:44:45,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627295853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:45,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:44:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157177437] [2024-10-14 16:44:45,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:45,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:45,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:45,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:45,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 135 [2024-10-14 16:44:45,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 122 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:45,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:45,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 135 [2024-10-14 16:44:45,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:46,085 INFO L124 PetriNetUnfolderBase]: 2798/7983 cut-off events. [2024-10-14 16:44:46,086 INFO L125 PetriNetUnfolderBase]: For 4075/4095 co-relation queries the response was YES. [2024-10-14 16:44:46,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18068 conditions, 7983 events. 2798/7983 cut-off events. For 4075/4095 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 77247 event pairs, 767 based on Foata normal form. 819/8584 useless extension candidates. Maximal degree in co-relation 18059. Up to 3495 conditions per place. [2024-10-14 16:44:46,150 INFO L140 encePairwiseOnDemand]: 123/135 looper letters, 28 selfloop transitions, 12 changer transitions 0/109 dead transitions. [2024-10-14 16:44:46,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 109 transitions, 447 flow [2024-10-14 16:44:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:44:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:44:46,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-10-14 16:44:46,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2024-10-14 16:44:46,151 INFO L175 Difference]: Start difference. First operand has 108 places, 122 transitions, 426 flow. Second operand 3 states and 264 transitions. [2024-10-14 16:44:46,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 109 transitions, 447 flow [2024-10-14 16:44:46,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 109 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:44:46,164 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 306 flow [2024-10-14 16:44:46,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2024-10-14 16:44:46,165 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, -39 predicate places. [2024-10-14 16:44:46,165 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 306 flow [2024-10-14 16:44:46,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:44:46,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:46,166 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:46,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 16:44:46,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-10-14 16:44:46,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1193355919, now seen corresponding path program 1 times [2024-10-14 16:44:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:46,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058943976] [2024-10-14 16:44:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:46,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:46,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:44:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:44:46,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:44:46,184 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:44:46,184 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-10-14 16:44:46,185 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-10-14 16:44:46,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-10-14 16:44:46,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-10-14 16:44:46,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-10-14 16:44:46,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 16:44:46,189 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-14 16:44:46,189 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:44:46,190 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-14 16:44:46,211 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:44:46,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 163 transitions, 366 flow [2024-10-14 16:44:46,224 INFO L124 PetriNetUnfolderBase]: 11/216 cut-off events. [2024-10-14 16:44:46,225 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-14 16:44:46,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 216 events. 11/216 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 652 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-10-14 16:44:46,227 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 163 transitions, 366 flow [2024-10-14 16:44:46,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 163 transitions, 366 flow [2024-10-14 16:44:46,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:44:46,229 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@159e0976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:44:46,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-14 16:44:46,230 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:44:46,231 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-10-14 16:44:46,231 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:44:46,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:46,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:46,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-14 16:44:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash -137846914, now seen corresponding path program 1 times [2024-10-14 16:44:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604027761] [2024-10-14 16:44:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:46,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604027761] [2024-10-14 16:44:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604027761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 16:44:46,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520478805] [2024-10-14 16:44:46,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:46,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 16:44:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 16:44:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 16:44:46,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 163 [2024-10-14 16:44:46,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 163 transitions, 366 flow. Second operand has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 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) [2024-10-14 16:44:46,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:46,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 163 [2024-10-14 16:44:46,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:44:51,220 INFO L124 PetriNetUnfolderBase]: 30387/54120 cut-off events. [2024-10-14 16:44:51,220 INFO L125 PetriNetUnfolderBase]: For 21845/21845 co-relation queries the response was YES. [2024-10-14 16:44:51,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102027 conditions, 54120 events. 30387/54120 cut-off events. For 21845/21845 co-relation queries the response was YES. Maximal size of possible extension queue 2304. Compared 544891 event pairs, 29550 based on Foata normal form. 9331/58664 useless extension candidates. Maximal degree in co-relation 77442. Up to 38881 conditions per place. [2024-10-14 16:44:51,766 INFO L140 encePairwiseOnDemand]: 121/163 looper letters, 30 selfloop transitions, 0 changer transitions 0/118 dead transitions. [2024-10-14 16:44:51,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 118 transitions, 336 flow [2024-10-14 16:44:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 16:44:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-14 16:44:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 254 transitions. [2024-10-14 16:44:51,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7791411042944786 [2024-10-14 16:44:51,768 INFO L175 Difference]: Start difference. First operand has 168 places, 163 transitions, 366 flow. Second operand 2 states and 254 transitions. [2024-10-14 16:44:51,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 118 transitions, 336 flow [2024-10-14 16:44:51,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 118 transitions, 324 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-10-14 16:44:51,774 INFO L231 Difference]: Finished difference. Result has 125 places, 118 transitions, 264 flow [2024-10-14 16:44:51,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=264, PETRI_PLACES=125, PETRI_TRANSITIONS=118} [2024-10-14 16:44:51,774 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -43 predicate places. [2024-10-14 16:44:51,774 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 118 transitions, 264 flow [2024-10-14 16:44:51,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 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) [2024-10-14 16:44:51,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:44:51,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:44:51,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 16:44:51,775 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-14 16:44:51,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:44:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash 673128865, now seen corresponding path program 1 times [2024-10-14 16:44:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:44:51,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711714315] [2024-10-14 16:44:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:44:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:44:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:44:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:44:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:44:51,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711714315] [2024-10-14 16:44:51,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711714315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:44:51,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:44:51,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:44:51,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4476724] [2024-10-14 16:44:51,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:44:51,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:44:51,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:44:51,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:44:51,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:44:51,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 163 [2024-10-14 16:44:51,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 118 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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) [2024-10-14 16:44:51,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:44:51,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 163 [2024-10-14 16:44:51,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand