./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_07-glob_fld_rc.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_07-glob_fld_rc.c -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 051e9de902f5f925b76552326852b754e8794c3d6efac87d73f390ecaab1f793 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:16,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:16,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:16,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:16,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:16,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:16,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:16,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:16,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:16,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:16,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:16,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:16,634 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:16,635 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:16,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:16,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:16,635 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 051e9de902f5f925b76552326852b754e8794c3d6efac87d73f390ecaab1f793 [2025-04-29 11:08:16,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:16,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:16,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:16,876 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:16,877 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:16,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_07-glob_fld_rc.c [2025-04-29 11:08:18,203 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb5ddc86/b68d226e64bd4e6ca44a52bff46cc91d/FLAG4189ed82f [2025-04-29 11:08:18,385 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:18,394 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_07-glob_fld_rc.c [2025-04-29 11:08:18,400 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:18,408 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb5ddc86/b68d226e64bd4e6ca44a52bff46cc91d/FLAG4189ed82f [2025-04-29 11:08:19,205 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb5ddc86/b68d226e64bd4e6ca44a52bff46cc91d [2025-04-29 11:08:19,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:19,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:19,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:19,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:19,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:19,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150eec7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19, skipping insertion in model container [2025-04-29 11:08:19,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:19,375 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:19,383 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:19,412 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:19,432 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:19,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19 WrapperNode [2025-04-29 11:08:19,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:19,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:19,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:19,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:19,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,463 INFO L138 Inliner]: procedures = 9, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2025-04-29 11:08:19,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:19,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:19,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:19,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:19,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,482 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:19,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:19,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:19,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:19,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (1/1) ... [2025-04-29 11:08:19,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:19,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:19,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:08:19,531 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 [2025-04-29 11:08:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:08:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:08:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:19,551 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:08:19,606 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:19,608 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:19,737 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:19,737 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:19,743 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:19,743 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:19,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:19 BoogieIcfgContainer [2025-04-29 11:08:19,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:19,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:19,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:19,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:19,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:19" (1/3) ... [2025-04-29 11:08:19,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5106676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:19, skipping insertion in model container [2025-04-29 11:08:19,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:19" (2/3) ... [2025-04-29 11:08:19,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5106676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:19, skipping insertion in model container [2025-04-29 11:08:19,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:19" (3/3) ... [2025-04-29 11:08:19,750 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_07-glob_fld_rc.c [2025-04-29 11:08:19,759 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:19,761 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_07-glob_fld_rc.c that has 2 procedures, 62 locations, 60 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-29 11:08:19,761 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:19,800 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:19,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 126 flow [2025-04-29 11:08:19,850 INFO L116 PetriNetUnfolderBase]: 0/60 cut-off events. [2025-04-29 11:08:19,855 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:19,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-29 11:08:19,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 61 transitions, 126 flow [2025-04-29 11:08:19,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2025-04-29 11:08:19,873 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:19,883 INFO L340 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;@7eb50716, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:19,883 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:08:19,892 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:19,892 INFO L116 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-04-29 11:08:19,892 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:19,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:19,893 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:19,893 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:19,900 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash -982952950, now seen corresponding path program 1 times [2025-04-29 11:08:19,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:19,909 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411705019] [2025-04-29 11:08:19,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:19,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:19,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-29 11:08:19,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-29 11:08:19,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:19,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:20,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:20,443 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411705019] [2025-04-29 11:08:20,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411705019] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:20,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:20,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:20,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205393949] [2025-04-29 11:08:20,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:20,450 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:20,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:20,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:20,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:20,625 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 61 [2025-04-29 11:08:20,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 123 flow. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2025-04-29 11:08:20,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:20,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 61 [2025-04-29 11:08:20,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:20,840 INFO L116 PetriNetUnfolderBase]: 198/723 cut-off events. [2025-04-29 11:08:20,840 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:20,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 723 events. 198/723 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4494 event pairs, 36 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 1148. Up to 183 conditions per place. [2025-04-29 11:08:20,848 INFO L140 encePairwiseOnDemand]: 39/61 looper letters, 68 selfloop transitions, 42 changer transitions 0/146 dead transitions. [2025-04-29 11:08:20,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 146 transitions, 515 flow [2025-04-29 11:08:20,851 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2025-04-29 11:08:20,859 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.912568306010929 [2025-04-29 11:08:20,860 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 123 flow. Second operand 6 states and 334 transitions. [2025-04-29 11:08:20,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 146 transitions, 515 flow [2025-04-29 11:08:20,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 146 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:20,867 INFO L231 Difference]: Finished difference. Result has 73 places, 106 transitions, 438 flow [2025-04-29 11:08:20,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=73, PETRI_TRANSITIONS=106} [2025-04-29 11:08:20,871 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 9 predicate places. [2025-04-29 11:08:20,871 INFO L485 AbstractCegarLoop]: Abstraction has has 73 places, 106 transitions, 438 flow [2025-04-29 11:08:20,871 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2025-04-29 11:08:20,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:20,872 INFO L206 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] [2025-04-29 11:08:20,872 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:20,872 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:20,872 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash -624946673, now seen corresponding path program 1 times [2025-04-29 11:08:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:20,873 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336564933] [2025-04-29 11:08:20,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:20,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:08:20,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:08:20,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:20,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:21,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:21,129 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336564933] [2025-04-29 11:08:21,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336564933] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:21,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:21,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179639844] [2025-04-29 11:08:21,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:21,130 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:21,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:21,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:21,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:21,226 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 61 [2025-04-29 11:08:21,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 106 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2025-04-29 11:08:21,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:21,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 61 [2025-04-29 11:08:21,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:21,411 INFO L116 PetriNetUnfolderBase]: 342/1076 cut-off events. [2025-04-29 11:08:21,411 INFO L117 PetriNetUnfolderBase]: For 533/566 co-relation queries the response was YES. [2025-04-29 11:08:21,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1076 events. 342/1076 cut-off events. For 533/566 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7175 event pairs, 67 based on Foata normal form. 19/1084 useless extension candidates. Maximal degree in co-relation 2718. Up to 476 conditions per place. [2025-04-29 11:08:21,418 INFO L140 encePairwiseOnDemand]: 44/61 looper letters, 90 selfloop transitions, 53 changer transitions 3/181 dead transitions. [2025-04-29 11:08:21,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 181 transitions, 1066 flow [2025-04-29 11:08:21,419 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2025-04-29 11:08:21,422 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.825136612021858 [2025-04-29 11:08:21,422 INFO L175 Difference]: Start difference. First operand has 73 places, 106 transitions, 438 flow. Second operand 6 states and 302 transitions. [2025-04-29 11:08:21,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 181 transitions, 1066 flow [2025-04-29 11:08:21,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 181 transitions, 1066 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:21,430 INFO L231 Difference]: Finished difference. Result has 83 places, 157 transitions, 944 flow [2025-04-29 11:08:21,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=944, PETRI_PLACES=83, PETRI_TRANSITIONS=157} [2025-04-29 11:08:21,431 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 19 predicate places. [2025-04-29 11:08:21,431 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 157 transitions, 944 flow [2025-04-29 11:08:21,431 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 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) [2025-04-29 11:08:21,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:21,432 INFO L206 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] [2025-04-29 11:08:21,432 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:21,432 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:21,432 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1295961577, now seen corresponding path program 1 times [2025-04-29 11:08:21,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:21,433 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162889977] [2025-04-29 11:08:21,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:21,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:21,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-29 11:08:21,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-29 11:08:21,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:21,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:08:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:21,654 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162889977] [2025-04-29 11:08:21,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162889977] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:21,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:21,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-29 11:08:21,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108790771] [2025-04-29 11:08:21,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:21,656 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:21,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:21,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:21,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:21,777 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 61 [2025-04-29 11:08:21,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 157 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 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) [2025-04-29 11:08:21,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:21,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 61 [2025-04-29 11:08:21,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:21,988 INFO L116 PetriNetUnfolderBase]: 487/1403 cut-off events. [2025-04-29 11:08:21,988 INFO L117 PetriNetUnfolderBase]: For 2105/2151 co-relation queries the response was YES. [2025-04-29 11:08:21,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 1403 events. 487/1403 cut-off events. For 2105/2151 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9836 event pairs, 83 based on Foata normal form. 23/1405 useless extension candidates. Maximal degree in co-relation 4600. Up to 695 conditions per place. [2025-04-29 11:08:21,996 INFO L140 encePairwiseOnDemand]: 44/61 looper letters, 111 selfloop transitions, 58 changer transitions 36/241 dead transitions. [2025-04-29 11:08:21,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 241 transitions, 1862 flow [2025-04-29 11:08:21,997 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:08:21,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-29 11:08:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 292 transitions. [2025-04-29 11:08:21,999 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2025-04-29 11:08:21,999 INFO L175 Difference]: Start difference. First operand has 83 places, 157 transitions, 944 flow. Second operand 6 states and 292 transitions. [2025-04-29 11:08:21,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 241 transitions, 1862 flow [2025-04-29 11:08:22,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 241 transitions, 1854 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-04-29 11:08:22,012 INFO L231 Difference]: Finished difference. Result has 92 places, 184 transitions, 1344 flow [2025-04-29 11:08:22,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1344, PETRI_PLACES=92, PETRI_TRANSITIONS=184} [2025-04-29 11:08:22,014 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 28 predicate places. [2025-04-29 11:08:22,014 INFO L485 AbstractCegarLoop]: Abstraction has has 92 places, 184 transitions, 1344 flow [2025-04-29 11:08:22,014 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 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) [2025-04-29 11:08:22,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:22,014 INFO L206 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] [2025-04-29 11:08:22,015 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:22,015 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:08:22,015 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:22,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1934515839, now seen corresponding path program 1 times [2025-04-29 11:08:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:22,016 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556877137] [2025-04-29 11:08:22,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:22,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-29 11:08:22,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-29 11:08:22,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:22,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:22,031 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 11:08:22,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-29 11:08:22,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-29 11:08:22,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:22,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 11:08:22,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 11:08:22,060 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 11:08:22,061 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-29 11:08:22,062 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-29 11:08:22,062 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-29 11:08:22,063 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-29 11:08:22,063 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-29 11:08:22,063 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-29 11:08:22,064 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-29 11:08:22,064 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:22,064 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-29 11:08:22,106 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:22,107 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:22,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:22 BasicIcfg [2025-04-29 11:08:22,114 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:22,114 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:22,114 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:22,114 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:22,115 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:19" (3/4) ... [2025-04-29 11:08:22,116 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-29 11:08:22,150 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-04-29 11:08:22,175 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:22,176 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:22,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:22,176 INFO L158 Benchmark]: Toolchain (without parser) took 2968.51ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 83.4MB in the end (delta: 40.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2025-04-29 11:08:22,177 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:22,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.75ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 111.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:22,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.87ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:22,177 INFO L158 Benchmark]: Boogie Preprocessor took 29.17ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:22,177 INFO L158 Benchmark]: RCFGBuilder took 248.24ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 94.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:22,178 INFO L158 Benchmark]: TraceAbstraction took 2369.17ms. Allocated memory is still 167.8MB. Free memory was 94.7MB in the beginning and 90.4MB in the end (delta: 4.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2025-04-29 11:08:22,178 INFO L158 Benchmark]: Witness Printer took 61.79ms. Allocated memory is still 167.8MB. Free memory was 90.4MB in the beginning and 83.4MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:22,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.75ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 111.0MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.87ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.17ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.24ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 94.7MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2369.17ms. Allocated memory is still 167.8MB. Free memory was 94.7MB in the beginning and 90.4MB in the end (delta: 4.4MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 61.79ms. Allocated memory is still 167.8MB. Free memory was 90.4MB in the beginning and 83.4MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 23]: Data race detected Data race detected The following path leads to a data race: [L10-L13] 0 struct { int x; int y; } data; VAL [data={1:0}] [L21] 0 pthread_t id; VAL [data={1:0}] [L22] FCALL, FORK 0 pthread_create(&id, NULL, t_fun, NULL) VAL [\at(arg, Pre)={0:0}, data={1:0}, id=-1] [L16] EXPR 1 data.x VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}] [L16] 1 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}] [L23] EXPR 0 data.x VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}, id=-1] [L23] 0 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}, id=-1] [L16] 1 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}] [L23] 0 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}, id=-1] [L16] 1 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}] [L23] 0 data.x++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={1:0}, id=-1] Now there is a data race (on the heap) between C: data.x++ [16] and C: data.x++ [23] - UnprovableResult [Line: 23]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 16]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 84 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 631 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 37 mSDtfsCounter, 631 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1344occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-29 11:08:22,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)