./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed 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 ../sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:43:04,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:43:04,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:43:04,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:43:04,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:43:04,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:43:04,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:43:04,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:43:04,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:43:04,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:43:04,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:43:04,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:43:04,982 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:43:04,983 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:43:04,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:43:04,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:43:04,983 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 -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 [2025-03-08 21:43:05,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:43:05,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:43:05,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:43:05,315 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:43:05,316 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:43:05,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix023_tso.i [2025-03-08 21:43:06,548 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ca0333b5/ba1e3933ef7041968f15e7e512336ca6/FLAG7a0f66c86 [2025-03-08 21:43:06,858 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:43:06,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2025-03-08 21:43:06,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ca0333b5/ba1e3933ef7041968f15e7e512336ca6/FLAG7a0f66c86 [2025-03-08 21:43:07,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ca0333b5/ba1e3933ef7041968f15e7e512336ca6 [2025-03-08 21:43:07,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:43:07,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:43:07,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:43:07,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:43:07,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:43:07,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18af1098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07, skipping insertion in model container [2025-03-08 21:43:07,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:43:07,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:43:07,654 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:43:07,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:43:07,781 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:43:07,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07 WrapperNode [2025-03-08 21:43:07,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:43:07,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:43:07,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:43:07,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:43:07,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,870 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 2855 [2025-03-08 21:43:07,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:43:07,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:43:07,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:43:07,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:43:07,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:43:07,974 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:43:07,974 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:43:07,975 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:43:07,975 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (1/1) ... [2025-03-08 21:43:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:43:07,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:43:08,002 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) [2025-03-08 21:43:08,005 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 [2025-03-08 21:43:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 21:43:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:43:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-08 21:43:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-08 21:43:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-08 21:43:08,026 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-08 21:43:08,026 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-08 21:43:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-08 21:43:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-08 21:43:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-08 21:43:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:43:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 21:43:08,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:43:08,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:43:08,030 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:43:08,247 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:43:08,248 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:43:10,496 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:43:10,497 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:43:20,758 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:43:20,787 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:43:20,816 WARN L170 LargeBlockEncoding]: Complex 2:50 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:43:20,881 WARN L170 LargeBlockEncoding]: Complex 2:50 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:43:20,951 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:43:20,952 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:43:20,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:43:20 BoogieIcfgContainer [2025-03-08 21:43:20,952 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:43:20,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:43:20,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:43:20,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:43:20,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:43:07" (1/3) ... [2025-03-08 21:43:20,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5120c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:43:20, skipping insertion in model container [2025-03-08 21:43:20,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:43:07" (2/3) ... [2025-03-08 21:43:20,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5120c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:43:20, skipping insertion in model container [2025-03-08 21:43:20,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:43:20" (3/3) ... [2025-03-08 21:43:20,960 INFO L128 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2025-03-08 21:43:20,973 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:43:20,976 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix023_tso.i that has 5 procedures, 818 locations, 1 initial locations, 0 loop locations, and 669 error locations. [2025-03-08 21:43:20,977 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:43:21,605 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:43:21,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 830 places, 964 transitions, 1944 flow [2025-03-08 21:43:22,403 INFO L124 PetriNetUnfolderBase]: 147/960 cut-off events. [2025-03-08 21:43:22,406 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:43:22,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 960 events. 147/960 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 6583 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 904. Up to 2 conditions per place. [2025-03-08 21:43:22,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 830 places, 964 transitions, 1944 flow [2025-03-08 21:43:22,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 826 places, 960 transitions, 1932 flow [2025-03-08 21:43:22,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:43:22,548 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;@3b12ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:43:22,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1087 error locations. [2025-03-08 21:43:22,556 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:43:22,556 INFO L124 PetriNetUnfolderBase]: 0/64 cut-off events. [2025-03-08 21:43:22,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:43:22,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:43:22,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:43:22,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err31ASSERT_VIOLATIONDATA_RACE === [P0Err31ASSERT_VIOLATIONDATA_RACE, P0Err30ASSERT_VIOLATIONDATA_RACE, P0Err29ASSERT_VIOLATIONDATA_RACE, P0Err28ASSERT_VIOLATIONDATA_RACE (and 1083 more)] === [2025-03-08 21:43:22,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:43:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1867224516, now seen corresponding path program 1 times [2025-03-08 21:43:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:43:22,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36968731] [2025-03-08 21:43:22,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:43:22,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:43:22,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 21:43:22,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 21:43:22,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:43:22,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:43:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:43:22,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:43:22,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36968731] [2025-03-08 21:43:22,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36968731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:43:22,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:43:22,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-08 21:43:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543319385] [2025-03-08 21:43:22,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:43:22,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 21:43:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:43:22,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 21:43:22,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 21:43:22,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 964 [2025-03-08 21:43:22,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 960 transitions, 1932 flow. Second operand has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2025-03-08 21:43:22,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:43:22,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 964 [2025-03-08 21:43:22,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:44:12,701 INFO L124 PetriNetUnfolderBase]: 14316/33884 cut-off events. [2025-03-08 21:44:12,701 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-03-08 21:44:12,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52363 conditions, 33884 events. 14316/33884 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 389478 event pairs, 11279 based on Foata normal form. 2642/31490 useless extension candidates. Maximal degree in co-relation 52292. Up to 18102 conditions per place. [2025-03-08 21:44:12,960 INFO L140 encePairwiseOnDemand]: 154/964 looper letters, 29 selfloop transitions, 0 changer transitions 0/148 dead transitions. [2025-03-08 21:44:12,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 148 transitions, 366 flow [2025-03-08 21:44:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 21:44:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-08 21:44:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1087 transitions. [2025-03-08 21:44:12,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5637966804979253 [2025-03-08 21:44:12,988 INFO L175 Difference]: Start difference. First operand has 826 places, 960 transitions, 1932 flow. Second operand 2 states and 1087 transitions. [2025-03-08 21:44:12,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 148 transitions, 366 flow [2025-03-08 21:44:12,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 148 transitions, 362 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 21:44:13,000 INFO L231 Difference]: Finished difference. Result has 154 places, 148 transitions, 304 flow [2025-03-08 21:44:13,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=964, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=304, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2025-03-08 21:44:13,005 INFO L279 CegarLoopForPetriNet]: 826 programPoint places, -672 predicate places. [2025-03-08 21:44:13,005 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 304 flow [2025-03-08 21:44:13,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2025-03-08 21:44:13,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:44:13,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 21:44:13,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:44:13,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr252ASSERT_VIOLATIONDATA_RACE === [P0Err31ASSERT_VIOLATIONDATA_RACE, P0Err30ASSERT_VIOLATIONDATA_RACE, P0Err29ASSERT_VIOLATIONDATA_RACE, P0Err28ASSERT_VIOLATIONDATA_RACE (and 1083 more)] === [2025-03-08 21:44:13,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:44:13,009 INFO L85 PathProgramCache]: Analyzing trace with hash 183415716, now seen corresponding path program 1 times [2025-03-08 21:44:13,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:44:13,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059017485] [2025-03-08 21:44:13,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:44:13,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:44:13,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-08 21:44:13,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-08 21:44:13,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:44:13,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:44:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:44:13,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:44:13,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059017485] [2025-03-08 21:44:13,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059017485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:44:13,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:44:13,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:44:13,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115386822] [2025-03-08 21:44:13,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:44:13,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:44:13,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:44:13,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:44:13,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:44:13,229 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 964 [2025-03-08 21:44:13,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2025-03-08 21:44:13,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:44:13,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 964 [2025-03-08 21:44:13,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand