./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:26:11,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:26:11,978 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:26:11,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:26:11,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:26:11,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:26:12,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:26:12,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:26:12,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:26:12,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:26:12,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:26:12,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:26:12,002 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:26:12,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:26:12,003 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:26:12,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:12,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:26:12,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:12,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:26:12,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:26:12,005 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-jdk21/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 -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 [2025-01-09 21:26:12,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:26:12,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:26:12,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:26:12,243 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:26:12,243 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:26:12,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2025-01-09 21:26:13,354 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6da0bb925/3edb21db02074d50afa486b32a616479/FLAG469d79821 [2025-01-09 21:26:13,602 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:26:13,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2025-01-09 21:26:13,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6da0bb925/3edb21db02074d50afa486b32a616479/FLAG469d79821 [2025-01-09 21:26:13,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6da0bb925/3edb21db02074d50afa486b32a616479 [2025-01-09 21:26:13,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:26:13,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:26:13,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:26:13,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:26:13,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:26:13,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:13,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e614eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13, skipping insertion in model container [2025-01-09 21:26:13,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:13,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:26:13,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:26:13,899 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:26:13,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:26:13,965 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:26:13,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13 WrapperNode [2025-01-09 21:26:13,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:26:13,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:26:13,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:26:13,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:26:13,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:13,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:13,993 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2025-01-09 21:26:13,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:26:13,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:26:13,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:26:13,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:26:13,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:13,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,003 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:26:14,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:26:14,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:26:14,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:26:14,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (1/1) ... [2025-01-09 21:26:14,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:26:14,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:26:14,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:26:14,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:26:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:26:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:26:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:26:14,055 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:26:14,150 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:26:14,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:26:14,272 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:26:14,272 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:26:14,288 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:26:14,288 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:26:14,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:14 BoogieIcfgContainer [2025-01-09 21:26:14,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:26:14,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:26:14,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:26:14,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:26:14,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:26:13" (1/3) ... [2025-01-09 21:26:14,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d13cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:26:14, skipping insertion in model container [2025-01-09 21:26:14,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:26:13" (2/3) ... [2025-01-09 21:26:14,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d13cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:26:14, skipping insertion in model container [2025-01-09 21:26:14,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:14" (3/3) ... [2025-01-09 21:26:14,294 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2025-01-09 21:26:14,304 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:26:14,305 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_40-traces-ex-6_true.i that has 2 procedures, 79 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-01-09 21:26:14,305 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:26:14,353 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:26:14,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 164 flow [2025-01-09 21:26:14,411 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2025-01-09 21:26:14,413 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:26:14,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2025-01-09 21:26:14,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 164 flow [2025-01-09 21:26:14,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 161 flow [2025-01-09 21:26:14,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:26:14,433 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d2754b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:26:14,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-09 21:26:14,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:26:14,445 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2025-01-09 21:26:14,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:26:14,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:14,446 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] [2025-01-09 21:26:14,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:14,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash -932706531, now seen corresponding path program 1 times [2025-01-09 21:26:14,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:14,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668510470] [2025-01-09 21:26:14,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:14,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:14,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-01-09 21:26:14,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-01-09 21:26:14,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:14,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668510470] [2025-01-09 21:26:14,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668510470] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:14,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:14,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:26:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105886697] [2025-01-09 21:26:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:14,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:14,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:14,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:14,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:14,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 80 [2025-01-09 21:26:14,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2025-01-09 21:26:14,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:14,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 80 [2025-01-09 21:26:14,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:14,732 INFO L124 PetriNetUnfolderBase]: 36/227 cut-off events. [2025-01-09 21:26:14,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:26:14,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 227 events. 36/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 915 event pairs, 28 based on Foata normal form. 19/233 useless extension candidates. Maximal degree in co-relation 287. Up to 73 conditions per place. [2025-01-09 21:26:14,736 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 17 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2025-01-09 21:26:14,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 81 transitions, 207 flow [2025-01-09 21:26:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:14,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2025-01-09 21:26:14,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8833333333333333 [2025-01-09 21:26:14,747 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 161 flow. Second operand 3 states and 212 transitions. [2025-01-09 21:26:14,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 81 transitions, 207 flow [2025-01-09 21:26:14,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 81 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:26:14,757 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 182 flow [2025-01-09 21:26:14,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=182, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2025-01-09 21:26:14,761 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2025-01-09 21:26:14,763 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 182 flow [2025-01-09 21:26:14,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2025-01-09 21:26:14,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:14,763 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] [2025-01-09 21:26:14,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:26:14,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:14,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1653427043, now seen corresponding path program 1 times [2025-01-09 21:26:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:14,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791539044] [2025-01-09 21:26:14,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:14,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:14,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-09 21:26:14,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-09 21:26:14,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:14,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:14,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791539044] [2025-01-09 21:26:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791539044] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:14,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:14,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:26:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590620738] [2025-01-09 21:26:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:14,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:14,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:14,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:14,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 80 [2025-01-09 21:26:14,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-01-09 21:26:14,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:14,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 80 [2025-01-09 21:26:14,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:14,954 INFO L124 PetriNetUnfolderBase]: 37/343 cut-off events. [2025-01-09 21:26:14,954 INFO L125 PetriNetUnfolderBase]: For 28/30 co-relation queries the response was YES. [2025-01-09 21:26:14,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 343 events. 37/343 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1782 event pairs, 20 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 455. Up to 64 conditions per place. [2025-01-09 21:26:14,957 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 15 selfloop transitions, 5 changer transitions 1/85 dead transitions. [2025-01-09 21:26:14,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 242 flow [2025-01-09 21:26:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:14,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:14,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2025-01-09 21:26:14,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8875 [2025-01-09 21:26:14,960 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 182 flow. Second operand 3 states and 213 transitions. [2025-01-09 21:26:14,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 242 flow [2025-01-09 21:26:14,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 85 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:26:14,962 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 210 flow [2025-01-09 21:26:14,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2025-01-09 21:26:14,962 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2025-01-09 21:26:14,962 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 210 flow [2025-01-09 21:26:14,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-01-09 21:26:14,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:14,965 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] [2025-01-09 21:26:14,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:26:14,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:14,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:14,966 INFO L85 PathProgramCache]: Analyzing trace with hash -63758668, now seen corresponding path program 1 times [2025-01-09 21:26:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109840723] [2025-01-09 21:26:14,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:14,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:14,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-09 21:26:14,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-09 21:26:14,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:14,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:15,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:15,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:15,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109840723] [2025-01-09 21:26:15,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109840723] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:15,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:15,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 21:26:15,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202788762] [2025-01-09 21:26:15,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:15,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:15,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:15,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:15,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:15,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 80 [2025-01-09 21:26:15,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2025-01-09 21:26:15,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:15,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 80 [2025-01-09 21:26:15,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:15,096 INFO L124 PetriNetUnfolderBase]: 40/338 cut-off events. [2025-01-09 21:26:15,096 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2025-01-09 21:26:15,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 338 events. 40/338 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1669 event pairs, 26 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 507. Up to 84 conditions per place. [2025-01-09 21:26:15,098 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 18 selfloop transitions, 4 changer transitions 3/87 dead transitions. [2025-01-09 21:26:15,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 276 flow [2025-01-09 21:26:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2025-01-09 21:26:15,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2025-01-09 21:26:15,100 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 210 flow. Second operand 3 states and 208 transitions. [2025-01-09 21:26:15,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 276 flow [2025-01-09 21:26:15,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 87 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 21:26:15,102 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 224 flow [2025-01-09 21:26:15,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2025-01-09 21:26:15,103 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2025-01-09 21:26:15,103 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 224 flow [2025-01-09 21:26:15,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2025-01-09 21:26:15,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:15,103 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] [2025-01-09 21:26:15,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:26:15,103 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:15,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2103795233, now seen corresponding path program 1 times [2025-01-09 21:26:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854341772] [2025-01-09 21:26:15,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:15,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-09 21:26:15,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-09 21:26:15,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:15,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:15,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:15,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854341772] [2025-01-09 21:26:15,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854341772] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:15,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:15,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 21:26:15,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634134977] [2025-01-09 21:26:15,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:15,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:26:15,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:15,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:26:15,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:26:15,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2025-01-09 21:26:15,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2025-01-09 21:26:15,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:15,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2025-01-09 21:26:15,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:15,421 INFO L124 PetriNetUnfolderBase]: 8/218 cut-off events. [2025-01-09 21:26:15,422 INFO L125 PetriNetUnfolderBase]: For 40/42 co-relation queries the response was YES. [2025-01-09 21:26:15,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 218 events. 8/218 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 818 event pairs, 3 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 281. Up to 17 conditions per place. [2025-01-09 21:26:15,422 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 6 selfloop transitions, 5 changer transitions 2/79 dead transitions. [2025-01-09 21:26:15,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 79 transitions, 232 flow [2025-01-09 21:26:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:26:15,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 21:26:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 350 transitions. [2025-01-09 21:26:15,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.875 [2025-01-09 21:26:15,437 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 224 flow. Second operand 5 states and 350 transitions. [2025-01-09 21:26:15,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 79 transitions, 232 flow [2025-01-09 21:26:15,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 79 transitions, 212 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-01-09 21:26:15,440 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 190 flow [2025-01-09 21:26:15,440 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2025-01-09 21:26:15,440 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2025-01-09 21:26:15,440 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 190 flow [2025-01-09 21:26:15,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 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) [2025-01-09 21:26:15,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:15,441 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, 1] [2025-01-09 21:26:15,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:26:15,441 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:15,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2064716704, now seen corresponding path program 1 times [2025-01-09 21:26:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315538716] [2025-01-09 21:26:15,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:26:15,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:15,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 21:26:15,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 21:26:15,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:26:15,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:15,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:15,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315538716] [2025-01-09 21:26:15,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315538716] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:15,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:15,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:26:15,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764418789] [2025-01-09 21:26:15,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:15,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:26:15,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:15,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:26:15,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:26:15,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 80 [2025-01-09 21:26:15,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2025-01-09 21:26:15,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:15,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 80 [2025-01-09 21:26:15,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:15,576 INFO L124 PetriNetUnfolderBase]: 3/188 cut-off events. [2025-01-09 21:26:15,576 INFO L125 PetriNetUnfolderBase]: For 15/19 co-relation queries the response was YES. [2025-01-09 21:26:15,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 188 events. 3/188 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 651 event pairs, 1 based on Foata normal form. 4/183 useless extension candidates. Maximal degree in co-relation 219. Up to 15 conditions per place. [2025-01-09 21:26:15,577 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 5 selfloop transitions, 4 changer transitions 3/79 dead transitions. [2025-01-09 21:26:15,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 222 flow [2025-01-09 21:26:15,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:26:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:26:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2025-01-09 21:26:15,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9083333333333333 [2025-01-09 21:26:15,578 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 190 flow. Second operand 3 states and 218 transitions. [2025-01-09 21:26:15,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 79 transitions, 222 flow [2025-01-09 21:26:15,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-09 21:26:15,581 INFO L231 Difference]: Finished difference. Result has 85 places, 76 transitions, 198 flow [2025-01-09 21:26:15,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=85, PETRI_TRANSITIONS=76} [2025-01-09 21:26:15,581 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2025-01-09 21:26:15,582 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 76 transitions, 198 flow [2025-01-09 21:26:15,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2025-01-09 21:26:15,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:26:15,582 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, 1] [2025-01-09 21:26:15,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:26:15,582 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2025-01-09 21:26:15,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:26:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash -302807890, now seen corresponding path program 2 times [2025-01-09 21:26:15,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:26:15,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689253620] [2025-01-09 21:26:15,584 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:26:15,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:26:15,594 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 1 equivalence classes. [2025-01-09 21:26:15,603 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 21:26:15,603 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:26:15,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:26:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:26:15,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:26:15,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689253620] [2025-01-09 21:26:15,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689253620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:26:15,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:26:15,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:26:15,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000994399] [2025-01-09 21:26:15,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:26:15,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 21:26:15,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:26:15,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 21:26:15,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 21:26:15,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2025-01-09 21:26:15,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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) [2025-01-09 21:26:15,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:26:15,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2025-01-09 21:26:15,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:26:15,791 INFO L124 PetriNetUnfolderBase]: 0/95 cut-off events. [2025-01-09 21:26:15,791 INFO L125 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2025-01-09 21:26:15,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 95 events. 0/95 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2025-01-09 21:26:15,792 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-01-09 21:26:15,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 72 transitions, 198 flow [2025-01-09 21:26:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 21:26:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-09 21:26:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 346 transitions. [2025-01-09 21:26:15,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.865 [2025-01-09 21:26:15,794 INFO L175 Difference]: Start difference. First operand has 85 places, 76 transitions, 198 flow. Second operand 5 states and 346 transitions. [2025-01-09 21:26:15,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 72 transitions, 198 flow [2025-01-09 21:26:15,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 72 transitions, 174 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-01-09 21:26:15,795 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2025-01-09 21:26:15,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2025-01-09 21:26:15,795 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2025-01-09 21:26:15,795 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2025-01-09 21:26:15,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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) [2025-01-09 21:26:15,800 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2025-01-09 21:26:15,802 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2025-01-09 21:26:15,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2025-01-09 21:26:15,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2025-01-09 21:26:15,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2025-01-09 21:26:15,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2025-01-09 21:26:15,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:26:15,803 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-01-09 21:26:15,807 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:26:15,808 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:26:15,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:26:15 BasicIcfg [2025-01-09 21:26:15,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:26:15,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:26:15,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:26:15,813 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:26:15,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:26:14" (3/4) ... [2025-01-09 21:26:15,816 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:26:15,818 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-09 21:26:15,821 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 21:26:15,821 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 21:26:15,821 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 21:26:15,821 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 21:26:15,873 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:26:15,873 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:26:15,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:26:15,873 INFO L158 Benchmark]: Toolchain (without parser) took 2250.51ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 49.1MB in the end (delta: 72.1MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.75ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 101.5MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.66ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: Boogie Preprocessor took 12.49ms. Allocated memory is still 167.8MB. Free memory was 99.8MB in the beginning and 99.1MB in the end (delta: 749.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: RCFGBuilder took 281.58ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 84.6MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: TraceAbstraction took 1522.75ms. Allocated memory is still 167.8MB. Free memory was 83.8MB in the beginning and 55.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2025-01-09 21:26:15,874 INFO L158 Benchmark]: Witness Printer took 59.76ms. Allocated memory is still 167.8MB. Free memory was 55.0MB in the beginning and 49.1MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:26:15,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.75ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 101.5MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.66ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.49ms. Allocated memory is still 167.8MB. Free memory was 99.8MB in the beginning and 99.1MB in the end (delta: 749.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.58ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 84.6MB in the end (delta: 14.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1522.75ms. Allocated memory is still 167.8MB. Free memory was 83.8MB in the beginning and 55.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 59.76ms. Allocated memory is still 167.8MB. Free memory was 55.0MB in the beginning and 49.1MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: 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, 104 locations, 6 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: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 34 mSDtfsCounter, 308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=3, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 21:26:15,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE