./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.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/04-mutex_28-base_nr.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 1fd0ca2b56bf059e3ca2f70b2f8abcdb02c48ce678e8a0a5a7175681bf841b92 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:08:03,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:08:03,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:08:03,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:08:03,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:08:03,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:08:03,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:08:03,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:08:03,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:08:03,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:08:03,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:08:03,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:08:03,852 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:08:03,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:08:03,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:08:03,853 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:08:03,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:08:03,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:08:03,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:08:03,854 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:08:03,854 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:03,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:08:03,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:03,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:08:03,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:08:03,856 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 -> 1fd0ca2b56bf059e3ca2f70b2f8abcdb02c48ce678e8a0a5a7175681bf841b92 [2025-04-29 11:08:04,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:08:04,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:08:04,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:08:04,112 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:08:04,113 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:08:04,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.c [2025-04-29 11:08:05,337 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc7056db/7bdcb1afef8b4c8ba24080b32510e25a/FLAG53f4dabe8 [2025-04-29 11:08:05,551 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:08:05,551 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.c [2025-04-29 11:08:05,554 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:05,554 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:08:05,561 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc7056db/7bdcb1afef8b4c8ba24080b32510e25a/FLAG53f4dabe8 [2025-04-29 11:08:06,386 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bc7056db/7bdcb1afef8b4c8ba24080b32510e25a [2025-04-29 11:08:06,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:08:06,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:08:06,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:06,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:08:06,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:08:06,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cefa4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06, skipping insertion in model container [2025-04-29 11:08:06,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:08:06,562 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:06,574 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:08:06,593 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:08:06,608 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:08:06,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06 WrapperNode [2025-04-29 11:08:06,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:08:06,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:06,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:08:06,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:08:06,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,633 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2025-04-29 11:08:06,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:08:06,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:08:06,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:08:06,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:08:06,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,643 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:08:06,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:08:06,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:08:06,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:08:06,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (1/1) ... [2025-04-29 11:08:06,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:08:06,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:08:06,673 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 11:08:06,677 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 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:08:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:08:06,691 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:08:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:08:06,692 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 11:08:06,757 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:08:06,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:08:06,890 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:08:06,890 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:08:06,925 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:08:06,927 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:08:06,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:06 BoogieIcfgContainer [2025-04-29 11:08:06,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:08:06,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:08:06,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:08:06,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:08:06,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:08:06" (1/3) ... [2025-04-29 11:08:06,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54edf365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:06, skipping insertion in model container [2025-04-29 11:08:06,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:08:06" (2/3) ... [2025-04-29 11:08:06,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54edf365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:08:06, skipping insertion in model container [2025-04-29 11:08:06,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:06" (3/3) ... [2025-04-29 11:08:06,935 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.c [2025-04-29 11:08:06,945 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:08:06,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_28-base_nr.c that has 2 procedures, 75 locations, 73 edges, 1 initial locations, 0 loop locations, and 5 error locations. [2025-04-29 11:08:06,948 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:08:07,001 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:08:07,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 74 transitions, 152 flow [2025-04-29 11:08:07,069 INFO L116 PetriNetUnfolderBase]: 0/73 cut-off events. [2025-04-29 11:08:07,071 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:07,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 0/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-29 11:08:07,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 74 transitions, 152 flow [2025-04-29 11:08:07,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 73 transitions, 149 flow [2025-04-29 11:08:07,085 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:08:07,096 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;@78435347, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:08:07,099 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-29 11:08:07,108 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:08:07,110 INFO L116 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-04-29 11:08:07,110 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:08:07,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:07,111 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] [2025-04-29 11:08:07,112 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:07,117 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:07,117 INFO L85 PathProgramCache]: Analyzing trace with hash 162095434, now seen corresponding path program 1 times [2025-04-29 11:08:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:07,123 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329603681] [2025-04-29 11:08:07,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:07,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:07,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-29 11:08:07,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-29 11:08:07,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:07,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:07,272 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 11:08:07,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:07,273 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329603681] [2025-04-29 11:08:07,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329603681] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:07,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:07,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326350108] [2025-04-29 11:08:07,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:07,280 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:07,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:07,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:07,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:07,319 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 74 [2025-04-29 11:08:07,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:07,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:07,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 74 [2025-04-29 11:08:07,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:07,458 INFO L116 PetriNetUnfolderBase]: 44/368 cut-off events. [2025-04-29 11:08:07,458 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:08:07,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 368 events. 44/368 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1951 event pairs, 8 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 460. Up to 57 conditions per place. [2025-04-29 11:08:07,464 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 19 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2025-04-29 11:08:07,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 82 transitions, 211 flow [2025-04-29 11:08:07,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2025-04-29 11:08:07,478 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9279279279279279 [2025-04-29 11:08:07,481 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 3 states and 206 transitions. [2025-04-29 11:08:07,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 82 transitions, 211 flow [2025-04-29 11:08:07,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:07,491 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 170 flow [2025-04-29 11:08:07,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2025-04-29 11:08:07,496 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2025-04-29 11:08:07,496 INFO L485 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 170 flow [2025-04-29 11:08:07,496 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:08:07,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:07,496 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] [2025-04-29 11:08:07,496 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:08:07,497 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:07,497 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 295835103, now seen corresponding path program 1 times [2025-04-29 11:08:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:07,497 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395663903] [2025-04-29 11:08:07,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:07,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-29 11:08:07,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-29 11:08:07,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:07,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:07,557 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 11:08:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:07,558 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395663903] [2025-04-29 11:08:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395663903] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:07,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:07,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012879576] [2025-04-29 11:08:07,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:07,559 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:07,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:07,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:07,574 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 74 [2025-04-29 11:08:07,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 11:08:07,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:07,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 74 [2025-04-29 11:08:07,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:07,653 INFO L116 PetriNetUnfolderBase]: 77/453 cut-off events. [2025-04-29 11:08:07,653 INFO L117 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-04-29 11:08:07,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 453 events. 77/453 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2717 event pairs, 48 based on Foata normal form. 0/410 useless extension candidates. Maximal degree in co-relation 657. Up to 149 conditions per place. [2025-04-29 11:08:07,656 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 20 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2025-04-29 11:08:07,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 82 transitions, 238 flow [2025-04-29 11:08:07,657 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2025-04-29 11:08:07,658 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2025-04-29 11:08:07,658 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 170 flow. Second operand 3 states and 196 transitions. [2025-04-29 11:08:07,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 82 transitions, 238 flow [2025-04-29 11:08:07,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:07,660 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 200 flow [2025-04-29 11:08:07,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2025-04-29 11:08:07,661 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2025-04-29 11:08:07,661 INFO L485 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 200 flow [2025-04-29 11:08:07,661 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 11:08:07,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:07,661 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] [2025-04-29 11:08:07,661 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:08:07,661 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:07,662 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1446327451, now seen corresponding path program 1 times [2025-04-29 11:08:07,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:07,662 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678748206] [2025-04-29 11:08:07,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:07,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:07,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-29 11:08:07,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-29 11:08:07,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:07,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:07,784 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 11:08:07,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:07,784 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678748206] [2025-04-29 11:08:07,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678748206] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:07,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:07,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:08:07,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604780426] [2025-04-29 11:08:07,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:07,785 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:07,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:07,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:07,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:07,789 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 74 [2025-04-29 11:08:07,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 11:08:07,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:07,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 74 [2025-04-29 11:08:07,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:07,829 INFO L116 PetriNetUnfolderBase]: 16/249 cut-off events. [2025-04-29 11:08:07,829 INFO L117 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-04-29 11:08:07,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 249 events. 16/249 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1070 event pairs, 12 based on Foata normal form. 2/238 useless extension candidates. Maximal degree in co-relation 318. Up to 43 conditions per place. [2025-04-29 11:08:07,830 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 10 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2025-04-29 11:08:07,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 78 transitions, 214 flow [2025-04-29 11:08:07,830 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:07,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2025-04-29 11:08:07,831 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2025-04-29 11:08:07,831 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 200 flow. Second operand 3 states and 210 transitions. [2025-04-29 11:08:07,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 78 transitions, 214 flow [2025-04-29 11:08:07,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 78 transitions, 196 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-04-29 11:08:07,833 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 186 flow [2025-04-29 11:08:07,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2025-04-29 11:08:07,834 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2025-04-29 11:08:07,834 INFO L485 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 186 flow [2025-04-29 11:08:07,834 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 11:08:07,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:07,834 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 11:08:07,835 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:08:07,835 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:07,835 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2082427434, now seen corresponding path program 1 times [2025-04-29 11:08:07,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:07,835 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225273856] [2025-04-29 11:08:07,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:07,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:07,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-29 11:08:07,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-29 11:08:07,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:07,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:07,868 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 11:08:07,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:07,868 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225273856] [2025-04-29 11:08:07,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225273856] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:07,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:07,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:07,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051171298] [2025-04-29 11:08:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:07,868 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:07,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:07,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:07,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:07,880 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 74 [2025-04-29 11:08:07,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 11:08:07,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:07,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 74 [2025-04-29 11:08:07,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:07,946 INFO L116 PetriNetUnfolderBase]: 62/449 cut-off events. [2025-04-29 11:08:07,947 INFO L117 PetriNetUnfolderBase]: For 76/80 co-relation queries the response was YES. [2025-04-29 11:08:07,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 449 events. 62/449 cut-off events. For 76/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2563 event pairs, 21 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 686. Up to 97 conditions per place. [2025-04-29 11:08:07,948 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 23 selfloop transitions, 4 changer transitions 3/86 dead transitions. [2025-04-29 11:08:07,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 282 flow [2025-04-29 11:08:07,949 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2025-04-29 11:08:07,950 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2025-04-29 11:08:07,950 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 186 flow. Second operand 3 states and 202 transitions. [2025-04-29 11:08:07,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 282 flow [2025-04-29 11:08:07,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 86 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:08:07,951 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 200 flow [2025-04-29 11:08:07,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2025-04-29 11:08:07,952 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 4 predicate places. [2025-04-29 11:08:07,952 INFO L485 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 200 flow [2025-04-29 11:08:07,952 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 11:08:07,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:07,952 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, 1, 1, 1, 1, 1] [2025-04-29 11:08:07,953 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:08:07,953 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:07,953 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1732797486, now seen corresponding path program 1 times [2025-04-29 11:08:07,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:07,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59078985] [2025-04-29 11:08:07,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:07,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:07,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-29 11:08:07,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-29 11:08:07,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:07,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:08,001 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 11:08:08,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:08,001 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59078985] [2025-04-29 11:08:08,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59078985] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:08,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:08,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:08:08,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136616476] [2025-04-29 11:08:08,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:08,002 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:08:08,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:08,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:08:08,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:08:08,019 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 74 [2025-04-29 11:08:08,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 11:08:08,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:08,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 74 [2025-04-29 11:08:08,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:08,112 INFO L116 PetriNetUnfolderBase]: 99/556 cut-off events. [2025-04-29 11:08:08,112 INFO L117 PetriNetUnfolderBase]: For 165/171 co-relation queries the response was YES. [2025-04-29 11:08:08,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 556 events. 99/556 cut-off events. For 165/171 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3430 event pairs, 60 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 994. Up to 204 conditions per place. [2025-04-29 11:08:08,116 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 21 selfloop transitions, 3 changer transitions 6/83 dead transitions. [2025-04-29 11:08:08,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 83 transitions, 282 flow [2025-04-29 11:08:08,118 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:08:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:08:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2025-04-29 11:08:08,119 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8738738738738738 [2025-04-29 11:08:08,119 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 200 flow. Second operand 3 states and 194 transitions. [2025-04-29 11:08:08,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 83 transitions, 282 flow [2025-04-29 11:08:08,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:08:08,122 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 202 flow [2025-04-29 11:08:08,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2025-04-29 11:08:08,123 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-04-29 11:08:08,123 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 202 flow [2025-04-29 11:08:08,123 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 11:08:08,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:08:08,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:08:08,123 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:08:08,123 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-29 11:08:08,124 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:08:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1445681266, now seen corresponding path program 1 times [2025-04-29 11:08:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:08:08,124 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769774035] [2025-04-29 11:08:08,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:08:08,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:08:08,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-29 11:08:08,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-29 11:08:08,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:08:08,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:08:08,318 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 11:08:08,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:08:08,318 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769774035] [2025-04-29 11:08:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769774035] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:08:08,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:08:08,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-29 11:08:08,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504879908] [2025-04-29 11:08:08,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:08:08,320 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:08:08,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:08:08,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:08:08,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-29 11:08:08,334 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 74 [2025-04-29 11:08:08,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 11:08:08,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:08:08,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 74 [2025-04-29 11:08:08,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:08:08,381 INFO L116 PetriNetUnfolderBase]: 6/231 cut-off events. [2025-04-29 11:08:08,381 INFO L117 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-04-29 11:08:08,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 231 events. 6/231 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 832 event pairs, 2 based on Foata normal form. 4/234 useless extension candidates. Maximal degree in co-relation 344. Up to 24 conditions per place. [2025-04-29 11:08:08,381 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2025-04-29 11:08:08,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 74 transitions, 228 flow [2025-04-29 11:08:08,382 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:08:08,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-29 11:08:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2025-04-29 11:08:08,382 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8972972972972973 [2025-04-29 11:08:08,382 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 202 flow. Second operand 5 states and 332 transitions. [2025-04-29 11:08:08,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 74 transitions, 228 flow [2025-04-29 11:08:08,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 74 transitions, 206 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-04-29 11:08:08,383 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2025-04-29 11:08:08,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2025-04-29 11:08:08,384 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2025-04-29 11:08:08,384 INFO L485 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2025-04-29 11:08:08,384 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-04-29 11:08:08,386 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-04-29 11:08:08,386 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:08:08,387 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-04-29 11:08:08,389 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:08:08,389 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:08:08,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:08:08 BasicIcfg [2025-04-29 11:08:08,392 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:08:08,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:08:08,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:08:08,393 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:08:08,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:08:06" (3/4) ... [2025-04-29 11:08:08,394 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:08:08,397 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:08:08,399 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-29 11:08:08,399 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:08:08,399 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:08:08,456 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:08:08,457 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:08:08,457 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:08:08,457 INFO L158 Benchmark]: Toolchain (without parser) took 2067.99ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.0MB in the end (delta: 1.9MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.42ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 98.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.65ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: Boogie Preprocessor took 14.78ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.7MB in the end (delta: 931.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: RCFGBuilder took 278.06ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 81.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:08:08,458 INFO L158 Benchmark]: TraceAbstraction took 1463.57ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 49.8MB in the end (delta: 31.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2025-04-29 11:08:08,459 INFO L158 Benchmark]: Witness Printer took 64.28ms. Allocated memory is still 142.6MB. Free memory was 49.8MB in the beginning and 111.0MB in the end (delta: -61.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2025-04-29 11:08:08,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.42ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 98.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.65ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.78ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.7MB in the end (delta: 931.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.06ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 81.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1463.57ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 49.8MB in the end (delta: 31.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Witness Printer took 64.28ms. Allocated memory is still 142.6MB. Free memory was 49.8MB in the beginning and 111.0MB in the end (delta: -61.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 30]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 19]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 19]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 106 edges, 9 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: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 11 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=5, InterpolantAutomatonStates: 20, 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, 0.4s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:08:08,475 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 Result: TRUE