./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-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:04:40,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:04:40,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:04:40,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:04:40,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:04:40,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:04:40,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:04:40,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:04:40,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:04:40,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:04:40,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:04:40,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:04:40,419 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:04:40,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:04:40,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:04:40,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:04:40,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:04:40,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:04:40,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:04:40,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:04:40,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:04:40,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:04:40,425 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:04:40,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:04:40,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:04:40,426 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:04:40,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:04:40,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:04:40,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:04:40,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:04:40,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:04:40,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:04:40,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:04:40,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:04:40,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:04:40,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:04:40,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:04:40,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:04:40,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:04:40,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:04:40,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:04:40,431 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2024-10-11 17:04:40,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:04:40,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:04:40,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:04:40,764 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:04:40,766 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:04:40,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-10-11 17:04:42,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:04:42,542 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:04:42,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2024-10-11 17:04:42,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c133bdd5/0825600a5aa64eedb2d4c428cbd36ed6/FLAGfa109c1a6 [2024-10-11 17:04:42,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c133bdd5/0825600a5aa64eedb2d4c428cbd36ed6 [2024-10-11 17:04:42,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:04:42,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:04:42,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:04:42,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:04:42,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:04:42,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:04:42" (1/1) ... [2024-10-11 17:04:42,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766535da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:42, skipping insertion in model container [2024-10-11 17:04:42,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:04:42" (1/1) ... [2024-10-11 17:04:42,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:04:43,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:04:43,086 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:04:43,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:04:43,226 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:04:43,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43 WrapperNode [2024-10-11 17:04:43,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:04:43,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:04:43,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:04:43,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:04:43,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,335 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 886 [2024-10-11 17:04:43,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:04:43,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:04:43,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:04:43,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:04:43,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:04:43,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:04:43,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:04:43,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:04:43,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (1/1) ... [2024-10-11 17:04:43,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:04:43,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:04:43,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:04:43,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:04:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:04:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:04:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:04:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-10-11 17:04:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-10-11 17:04:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:04:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:04:43,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:04:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:04:43,550 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:04:43,739 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:04:43,741 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:04:45,090 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:04:45,091 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:04:45,165 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:04:45,166 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 17:04:45,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:04:45 BoogieIcfgContainer [2024-10-11 17:04:45,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:04:45,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:04:45,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:04:45,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:04:45,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:04:42" (1/3) ... [2024-10-11 17:04:45,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c763dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:04:45, skipping insertion in model container [2024-10-11 17:04:45,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:04:43" (2/3) ... [2024-10-11 17:04:45,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c763dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:04:45, skipping insertion in model container [2024-10-11 17:04:45,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:04:45" (3/3) ... [2024-10-11 17:04:45,177 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2024-10-11 17:04:45,194 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:04:45,194 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2024-10-11 17:04:45,195 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:04:45,372 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:04:45,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 949 places, 1035 transitions, 2077 flow [2024-10-11 17:04:46,147 INFO L124 PetriNetUnfolderBase]: 135/1533 cut-off events. [2024-10-11 17:04:46,147 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:04:46,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 1533 events. 135/1533 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5597 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 924. Up to 4 conditions per place. [2024-10-11 17:04:46,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 949 places, 1035 transitions, 2077 flow [2024-10-11 17:04:46,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 949 places, 1035 transitions, 2077 flow [2024-10-11 17:04:46,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:04:46,236 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;@5a4b4b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:04:46,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2024-10-11 17:04:46,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:04:46,244 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-10-11 17:04:46,244 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:04:46,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:04:46,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:04:46,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-11 17:04:46,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:04:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1509972903, now seen corresponding path program 1 times [2024-10-11 17:04:46,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:04:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349537825] [2024-10-11 17:04:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:04:46,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:04:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:04:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:04:47,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:04:47,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349537825] [2024-10-11 17:04:47,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349537825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:04:47,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:04:47,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:04:47,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228832482] [2024-10-11 17:04:47,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:04:47,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:04:47,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:04:47,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:04:47,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:04:49,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-11 17:04:49,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 1035 transitions, 2077 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:04:49,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:04:49,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-11 17:04:49,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:00,677 INFO L124 PetriNetUnfolderBase]: 12711/59457 cut-off events. [2024-10-11 17:05:00,677 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-11 17:05:00,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82858 conditions, 59457 events. 12711/59457 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692276 event pairs, 11413 based on Foata normal form. 7001/59290 useless extension candidates. Maximal degree in co-relation 82164. Up to 23391 conditions per place. [2024-10-11 17:05:00,993 INFO L140 encePairwiseOnDemand]: 959/1035 looper letters, 231 selfloop transitions, 5 changer transitions 3/937 dead transitions. [2024-10-11 17:05:00,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 926 places, 937 transitions, 2353 flow [2024-10-11 17:05:00,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:05:00,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:05:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4675 transitions. [2024-10-11 17:05:01,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7528180354267311 [2024-10-11 17:05:01,024 INFO L175 Difference]: Start difference. First operand has 949 places, 1035 transitions, 2077 flow. Second operand 6 states and 4675 transitions. [2024-10-11 17:05:01,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 926 places, 937 transitions, 2353 flow [2024-10-11 17:05:01,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 937 transitions, 2353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:05:01,056 INFO L231 Difference]: Finished difference. Result has 926 places, 934 transitions, 1885 flow [2024-10-11 17:05:01,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=921, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1885, PETRI_PLACES=926, PETRI_TRANSITIONS=934} [2024-10-11 17:05:01,063 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -23 predicate places. [2024-10-11 17:05:01,064 INFO L471 AbstractCegarLoop]: Abstraction has has 926 places, 934 transitions, 1885 flow [2024-10-11 17:05:01,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:05:01,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:01,068 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, 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] [2024-10-11 17:05:01,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:05:01,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-11 17:05:01,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:01,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1493705184, now seen corresponding path program 1 times [2024-10-11 17:05:01,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128595987] [2024-10-11 17:05:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:01,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:01,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:01,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128595987] [2024-10-11 17:05:01,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128595987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:05:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065068921] [2024-10-11 17:05:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:01,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:05:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:01,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:05:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:05:01,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 937 out of 1035 [2024-10-11 17:05:01,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 926 places, 934 transitions, 1885 flow. Second operand has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2024-10-11 17:05:01,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:01,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 937 of 1035 [2024-10-11 17:05:01,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:02,529 INFO L124 PetriNetUnfolderBase]: 247/4798 cut-off events. [2024-10-11 17:05:02,529 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:05:02,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5121 conditions, 4798 events. 247/4798 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36214 event pairs, 110 based on Foata normal form. 1/4139 useless extension candidates. Maximal degree in co-relation 5032. Up to 306 conditions per place. [2024-10-11 17:05:02,559 INFO L140 encePairwiseOnDemand]: 1032/1035 looper letters, 27 selfloop transitions, 2 changer transitions 0/935 dead transitions. [2024-10-11 17:05:02,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 935 transitions, 1945 flow [2024-10-11 17:05:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:05:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:05:02,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2841 transitions. [2024-10-11 17:05:02,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.914975845410628 [2024-10-11 17:05:02,566 INFO L175 Difference]: Start difference. First operand has 926 places, 934 transitions, 1885 flow. Second operand 3 states and 2841 transitions. [2024-10-11 17:05:02,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 935 transitions, 1945 flow [2024-10-11 17:05:02,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 935 transitions, 1935 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:05:02,585 INFO L231 Difference]: Finished difference. Result has 921 places, 935 transitions, 1887 flow [2024-10-11 17:05:02,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1875, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1887, PETRI_PLACES=921, PETRI_TRANSITIONS=935} [2024-10-11 17:05:02,587 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -28 predicate places. [2024-10-11 17:05:02,588 INFO L471 AbstractCegarLoop]: Abstraction has has 921 places, 935 transitions, 1887 flow [2024-10-11 17:05:02,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 938.3333333333334) internal successors, (2815), 3 states have internal predecessors, (2815), 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) [2024-10-11 17:05:02,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:02,590 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, 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, 1, 1] [2024-10-11 17:05:02,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:05:02,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-11 17:05:02,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:02,591 INFO L85 PathProgramCache]: Analyzing trace with hash 952333540, now seen corresponding path program 1 times [2024-10-11 17:05:02,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:02,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51218711] [2024-10-11 17:05:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:02,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:02,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51218711] [2024-10-11 17:05:02,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51218711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:02,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:02,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:05:02,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188554421] [2024-10-11 17:05:02,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:02,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:05:02,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:02,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:05:02,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:05:04,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-11 17:05:04,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 935 transitions, 1887 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:05:04,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:04,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-11 17:05:04,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:14,985 INFO L124 PetriNetUnfolderBase]: 12711/59481 cut-off events. [2024-10-11 17:05:14,985 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-10-11 17:05:15,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82897 conditions, 59481 events. 12711/59481 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692229 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82813. Up to 23394 conditions per place. [2024-10-11 17:05:15,520 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/934 dead transitions. [2024-10-11 17:05:15,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 925 places, 934 transitions, 2359 flow [2024-10-11 17:05:15,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:05:15,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:05:15,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-10-11 17:05:15,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-10-11 17:05:15,531 INFO L175 Difference]: Start difference. First operand has 921 places, 935 transitions, 1887 flow. Second operand 6 states and 4605 transitions. [2024-10-11 17:05:15,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 925 places, 934 transitions, 2359 flow [2024-10-11 17:05:15,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 934 transitions, 2357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:05:15,553 INFO L231 Difference]: Finished difference. Result has 924 places, 934 transitions, 1893 flow [2024-10-11 17:05:15,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=919, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=929, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=924, PETRI_TRANSITIONS=934} [2024-10-11 17:05:15,556 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -25 predicate places. [2024-10-11 17:05:15,557 INFO L471 AbstractCegarLoop]: Abstraction has has 924 places, 934 transitions, 1893 flow [2024-10-11 17:05:15,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:05:15,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:15,560 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:05:15,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:05:15,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-11 17:05:15,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1819614453, now seen corresponding path program 1 times [2024-10-11 17:05:15,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624406892] [2024-10-11 17:05:15,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:15,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:15,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:15,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624406892] [2024-10-11 17:05:15,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624406892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:15,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:15,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:05:15,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739298225] [2024-10-11 17:05:15,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:15,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:05:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:05:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:05:17,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1035 [2024-10-11 17:05:17,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 924 places, 934 transitions, 1893 flow. Second operand has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:05:17,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:17,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1035 [2024-10-11 17:05:17,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:27,051 INFO L124 PetriNetUnfolderBase]: 12711/59479 cut-off events. [2024-10-11 17:05:27,052 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2024-10-11 17:05:27,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82904 conditions, 59479 events. 12711/59479 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 692403 event pairs, 11413 based on Foata normal form. 0/52315 useless extension candidates. Maximal degree in co-relation 82806. Up to 23394 conditions per place. [2024-10-11 17:05:27,356 INFO L140 encePairwiseOnDemand]: 1029/1035 looper letters, 232 selfloop transitions, 5 changer transitions 0/933 dead transitions. [2024-10-11 17:05:27,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 933 transitions, 2365 flow [2024-10-11 17:05:27,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:05:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:05:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4605 transitions. [2024-10-11 17:05:27,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415458937198067 [2024-10-11 17:05:27,368 INFO L175 Difference]: Start difference. First operand has 924 places, 934 transitions, 1893 flow. Second operand 6 states and 4605 transitions. [2024-10-11 17:05:27,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 933 transitions, 2365 flow [2024-10-11 17:05:27,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 923 places, 933 transitions, 2355 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:05:27,387 INFO L231 Difference]: Finished difference. Result has 923 places, 933 transitions, 1891 flow [2024-10-11 17:05:27,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1035, PETRI_DIFFERENCE_MINUEND_FLOW=1881, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=933, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1891, PETRI_PLACES=923, PETRI_TRANSITIONS=933} [2024-10-11 17:05:27,391 INFO L277 CegarLoopForPetriNet]: 949 programPoint places, -26 predicate places. [2024-10-11 17:05:27,391 INFO L471 AbstractCegarLoop]: Abstraction has has 923 places, 933 transitions, 1891 flow [2024-10-11 17:05:27,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 729.5) internal successors, (4377), 6 states have internal predecessors, (4377), 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) [2024-10-11 17:05:27,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:27,396 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, 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, 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] [2024-10-11 17:05:27,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:05:27,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2024-10-11 17:05:27,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:27,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2131144648, now seen corresponding path program 1 times [2024-10-11 17:05:27,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:27,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196285865] [2024-10-11 17:05:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:27,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:27,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196285865] [2024-10-11 17:05:27,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196285865] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:05:27,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393946501] [2024-10-11 17:05:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:27,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:05:27,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:05:27,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:05:27,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:05:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:27,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:05:27,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:05:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:27,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:05:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:27,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393946501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:05:27,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:05:27,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-11 17:05:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725814901] [2024-10-11 17:05:27,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:05:27,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:05:27,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:05:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:05:28,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1035 [2024-10-11 17:05:28,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 933 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 938.1666666666666) internal successors, (5629), 6 states have internal predecessors, (5629), 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) [2024-10-11 17:05:28,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:28,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1035 [2024-10-11 17:05:28,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand