./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.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-race-challenges/atomic-gcc.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 e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:09:37,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:09:37,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:09:37,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:09:37,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:09:37,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:09:37,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:09:37,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:09:37,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:09:37,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:09:37,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:09:37,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:09:37,732 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:09:37,732 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:09:37,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:09:37,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:09:37,733 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 -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-03-08 22:09:37,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:09:37,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:09:37,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:09:37,983 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:09:37,983 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:09:37,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-08 22:09:39,134 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572d11709/13cf00b5398e4fc7872464cc4812bb73/FLAGd8680eef5 [2025-03-08 22:09:39,406 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:09:39,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-08 22:09:39,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572d11709/13cf00b5398e4fc7872464cc4812bb73/FLAGd8680eef5 [2025-03-08 22:09:39,701 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572d11709/13cf00b5398e4fc7872464cc4812bb73 [2025-03-08 22:09:39,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:09:39,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:09:39,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:09:39,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:09:39,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:09:39,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:09:39" (1/1) ... [2025-03-08 22:09:39,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777d98cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:39, skipping insertion in model container [2025-03-08 22:09:39,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:09:39" (1/1) ... [2025-03-08 22:09:39,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:09:40,050 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-08 22:09:40,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:09:40,074 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:09:40,101 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-08 22:09:40,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:09:40,129 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-03-08 22:09:40,134 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:09:40,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40 WrapperNode [2025-03-08 22:09:40,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:09:40,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:09:40,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:09:40,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:09:40,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,163 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-03-08 22:09:40,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:09:40,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:09:40,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:09:40,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:09:40,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:09:40,183 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:09:40,183 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:09:40,184 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:09:40,184 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (1/1) ... [2025-03-08 22:09:40,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:09:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:09:40,208 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 22:09:40,210 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 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-08 22:09:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-08 22:09:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:09:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:09:40,227 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 22:09:40,317 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:09:40,318 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:09:40,459 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:09:40,459 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:09:40,466 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:09:40,467 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:09:40,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:40 BoogieIcfgContainer [2025-03-08 22:09:40,468 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:09:40,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:09:40,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:09:40,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:09:40,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:09:39" (1/3) ... [2025-03-08 22:09:40,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1865b066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:09:40, skipping insertion in model container [2025-03-08 22:09:40,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:40" (2/3) ... [2025-03-08 22:09:40,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1865b066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:09:40, skipping insertion in model container [2025-03-08 22:09:40,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:40" (3/3) ... [2025-03-08 22:09:40,475 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-03-08 22:09:40,486 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:09:40,487 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 74 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-03-08 22:09:40,489 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:09:40,521 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:09:40,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-03-08 22:09:40,583 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-03-08 22:09:40,585 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:09:40,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-03-08 22:09:40,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-03-08 22:09:40,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-03-08 22:09:40,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:09:40,608 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;@47bd0be5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:09:40,608 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-08 22:09:40,619 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:09:40,619 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-03-08 22:09:40,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:09:40,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:40,619 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] [2025-03-08 22:09:40,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:40,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1439484660, now seen corresponding path program 1 times [2025-03-08 22:09:40,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:09:40,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651363953] [2025-03-08 22:09:40,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:09:40,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 22:09:40,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 22:09:40,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:40,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:09:41,213 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 22:09:41,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:09:41,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651363953] [2025-03-08 22:09:41,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651363953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:09:41,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:09:41,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:09:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972389926] [2025-03-08 22:09:41,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:09:41,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:09:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:09:41,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:09:41,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:09:41,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2025-03-08 22:09:41,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 22:09:41,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:09:41,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2025-03-08 22:09:41,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:09:41,416 INFO L124 PetriNetUnfolderBase]: 0/90 cut-off events. [2025-03-08 22:09:41,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:09:41,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 90 events. 0/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 16/99 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2025-03-08 22:09:41,418 INFO L140 encePairwiseOnDemand]: 68/77 looper letters, 13 selfloop transitions, 5 changer transitions 1/62 dead transitions. [2025-03-08 22:09:41,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 164 flow [2025-03-08 22:09:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:09:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:09:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 354 transitions. [2025-03-08 22:09:41,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2025-03-08 22:09:41,431 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 6 states and 354 transitions. [2025-03-08 22:09:41,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 164 flow [2025-03-08 22:09:41,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:09:41,437 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 136 flow [2025-03-08 22:09:41,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-03-08 22:09:41,441 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-03-08 22:09:41,441 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 136 flow [2025-03-08 22:09:41,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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 22:09:41,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:41,441 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] [2025-03-08 22:09:41,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:09:41,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:41,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1856276668, now seen corresponding path program 1 times [2025-03-08 22:09:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:09:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826005042] [2025-03-08 22:09:41,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:09:41,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 22:09:41,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 22:09:41,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:41,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:09:41,528 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 22:09:41,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:09:41,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826005042] [2025-03-08 22:09:41,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826005042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:09:41,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:09:41,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:09:41,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698126170] [2025-03-08 22:09:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:09:41,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:09:41,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:09:41,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:09:41,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:09:41,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-03-08 22:09:41,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 22:09:41,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:09:41,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-03-08 22:09:41,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:09:41,614 INFO L124 PetriNetUnfolderBase]: 0/81 cut-off events. [2025-03-08 22:09:41,614 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:09:41,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 81 events. 0/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-03-08 22:09:41,615 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 9 selfloop transitions, 2 changer transitions 5/66 dead transitions. [2025-03-08 22:09:41,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 178 flow [2025-03-08 22:09:41,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:09:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:09:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2025-03-08 22:09:41,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.829004329004329 [2025-03-08 22:09:41,617 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 136 flow. Second operand 6 states and 383 transitions. [2025-03-08 22:09:41,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 178 flow [2025-03-08 22:09:41,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 168 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-08 22:09:41,620 INFO L231 Difference]: Finished difference. Result has 73 places, 61 transitions, 144 flow [2025-03-08 22:09:41,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2025-03-08 22:09:41,621 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-03-08 22:09:41,621 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 144 flow [2025-03-08 22:09:41,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 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 22:09:41,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:41,622 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] [2025-03-08 22:09:41,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:09:41,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:41,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1253464510, now seen corresponding path program 1 times [2025-03-08 22:09:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:09:41,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543154969] [2025-03-08 22:09:41,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:09:41,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:09:41,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:09:41,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:41,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:09:41,640 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:09:41,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:09:41,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:09:41,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:41,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:09:41,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:09:41,668 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:09:41,669 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-08 22:09:41,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-03-08 22:09:41,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-03-08 22:09:41,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-08 22:09:41,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-08 22:09:41,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:09:41,671 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 22:09:41,695 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 22:09:41,695 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:09:41,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:09:41 BasicIcfg [2025-03-08 22:09:41,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:09:41,700 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:09:41,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:09:41,700 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:09:41,701 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:40" (3/4) ... [2025-03-08 22:09:41,701 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 22:09:41,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:09:41,703 INFO L158 Benchmark]: Toolchain (without parser) took 1998.86ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 67.4MB in the end (delta: 35.7MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2025-03-08 22:09:41,703 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:41,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.84ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 75.5MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 22:09:41,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.63ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:41,703 INFO L158 Benchmark]: Boogie Preprocessor took 18.82ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:41,703 INFO L158 Benchmark]: IcfgBuilder took 284.26ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 57.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:09:41,704 INFO L158 Benchmark]: TraceAbstraction took 1230.16ms. Allocated memory is still 142.6MB. Free memory was 57.7MB in the beginning and 67.4MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:41,704 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 67.4MB in the beginning and 67.4MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:41,705 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.84ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 75.5MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.63ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.82ms. Allocated memory is still 142.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 997.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 284.26ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 57.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1230.16ms. Allocated memory is still 142.6MB. Free memory was 57.7MB in the beginning and 67.4MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 142.6MB. Free memory was 67.4MB in the beginning and 67.4MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=2] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=2, tids={-2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=2, tids={-2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 91 edges, 5 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 22:09:41,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-race-challenges/atomic-gcc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.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 e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:09:43,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:09:43,518 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-03-08 22:09:43,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:09:43,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:09:43,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:09:43,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:09:43,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:09:43,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:09:43,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:09:43,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:09:43,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:09:43,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:09:43,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:09:43,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:09:43,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:09:43,551 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 -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-03-08 22:09:43,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:09:43,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:09:43,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:09:43,798 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:09:43,798 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:09:43,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-08 22:09:44,977 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a831176/e9577f23ee18484d8a99554881fdc141/FLAGf39877ea5 [2025-03-08 22:09:45,224 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:09:45,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-08 22:09:45,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a831176/e9577f23ee18484d8a99554881fdc141/FLAGf39877ea5 [2025-03-08 22:09:45,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a831176/e9577f23ee18484d8a99554881fdc141 [2025-03-08 22:09:45,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:09:45,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:09:45,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:09:45,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:09:45,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:09:45,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:45,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b31cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45, skipping insertion in model container [2025-03-08 22:09:45,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:45,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:09:45,820 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-08 22:09:45,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:09:45,855 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:09:45,893 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-08 22:09:45,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:09:45,943 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-03-08 22:09:45,949 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:09:45,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45 WrapperNode [2025-03-08 22:09:45,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:09:45,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:09:45,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:09:45,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:09:45,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:45,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:45,992 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-03-08 22:09:45,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:09:45,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:09:45,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:09:45,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:09:45,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,018 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:09:46,031 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:09:46,031 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:09:46,031 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:09:46,032 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (1/1) ... [2025-03-08 22:09:46,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:09:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:09:46,060 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 22:09:46,063 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 22:09:46,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-08 22:09:46,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-08 22:09:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-08 22:09:46,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:09:46,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:09:46,081 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 22:09:46,173 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:09:46,175 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:09:46,327 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:09:46,327 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:09:46,338 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:09:46,338 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:09:46,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:46 BoogieIcfgContainer [2025-03-08 22:09:46,339 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:09:46,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:09:46,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:09:46,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:09:46,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:09:45" (1/3) ... [2025-03-08 22:09:46,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaee70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:09:46, skipping insertion in model container [2025-03-08 22:09:46,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:09:45" (2/3) ... [2025-03-08 22:09:46,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aaee70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:09:46, skipping insertion in model container [2025-03-08 22:09:46,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:46" (3/3) ... [2025-03-08 22:09:46,347 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-03-08 22:09:46,357 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:09:46,359 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 73 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-03-08 22:09:46,359 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:09:46,414 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-08 22:09:46,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 76 transitions, 159 flow [2025-03-08 22:09:46,481 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2025-03-08 22:09:46,485 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-08 22:09:46,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 3/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-03-08 22:09:46,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 76 transitions, 159 flow [2025-03-08 22:09:46,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 76 transitions, 159 flow [2025-03-08 22:09:46,495 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:09:46,502 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;@5dbe3f43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:09:46,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-08 22:09:46,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:09:46,512 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-03-08 22:09:46,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:09:46,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:46,512 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] [2025-03-08 22:09:46,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:46,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1645132029, now seen corresponding path program 1 times [2025-03-08 22:09:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:09:46,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522184552] [2025-03-08 22:09:46,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:46,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:46,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:09:46,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:09:46,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:09:46,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 22:09:46,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 22:09:46,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:46,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:09:46,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-08 22:09:46,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:09:46,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-03-08 22:09:46,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2025-03-08 22:09:46,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:09:46,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2025-03-08 22:09:46,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:09:46,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2025-03-08 22:09:46,993 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 22:09:46,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:09:46,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:09:46,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522184552] [2025-03-08 22:09:46,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522184552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:09:46,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:09:46,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 22:09:46,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45479763] [2025-03-08 22:09:46,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:09:47,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 22:09:47,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:09:47,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 22:09:47,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:09:47,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 76 [2025-03-08 22:09:47,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 159 flow. Second operand has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 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 22:09:47,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:09:47,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 76 [2025-03-08 22:09:47,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:09:47,359 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2025-03-08 22:09:47,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:09:47,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 17/101 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2025-03-08 22:09:47,360 INFO L140 encePairwiseOnDemand]: 56/76 looper letters, 17 selfloop transitions, 16 changer transitions 1/70 dead transitions. [2025-03-08 22:09:47,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 212 flow [2025-03-08 22:09:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 22:09:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-08 22:09:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 584 transitions. [2025-03-08 22:09:47,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2025-03-08 22:09:47,374 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 159 flow. Second operand 12 states and 584 transitions. [2025-03-08 22:09:47,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 212 flow [2025-03-08 22:09:47,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 70 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:09:47,381 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 195 flow [2025-03-08 22:09:47,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=195, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2025-03-08 22:09:47,385 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-03-08 22:09:47,386 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 195 flow [2025-03-08 22:09:47,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 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 22:09:47,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:47,386 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] [2025-03-08 22:09:47,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 22:09:47,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:47,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:47,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash -352210636, now seen corresponding path program 1 times [2025-03-08 22:09:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:09:47,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076372192] [2025-03-08 22:09:47,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:47,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:47,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:09:47,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:09:47,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:09:47,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-08 22:09:47,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-08 22:09:47,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:47,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:09:47,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:09:47,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:09:47,683 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 22:09:47,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:09:47,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:09:47,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076372192] [2025-03-08 22:09:47,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076372192] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:09:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:09:47,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:09:47,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156147702] [2025-03-08 22:09:47,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:09:47,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 22:09:47,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:09:47,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 22:09:47,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:09:47,786 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 76 [2025-03-08 22:09:47,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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 22:09:47,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:09:47,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 76 [2025-03-08 22:09:47,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:09:47,826 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2025-03-08 22:09:47,828 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-08 22:09:47,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 82 events. 0/82 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-03-08 22:09:47,829 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 9 selfloop transitions, 2 changer transitions 5/71 dead transitions. [2025-03-08 22:09:47,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 237 flow [2025-03-08 22:09:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:09:47,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:09:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 377 transitions. [2025-03-08 22:09:47,830 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8267543859649122 [2025-03-08 22:09:47,830 INFO L175 Difference]: Start difference. First operand has 82 places, 67 transitions, 195 flow. Second operand 6 states and 377 transitions. [2025-03-08 22:09:47,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 237 flow [2025-03-08 22:09:47,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 71 transitions, 214 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-08 22:09:47,832 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 186 flow [2025-03-08 22:09:47,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2025-03-08 22:09:47,833 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-03-08 22:09:47,833 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 186 flow [2025-03-08 22:09:47,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 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 22:09:47,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:09:47,833 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] [2025-03-08 22:09:47,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 22:09:48,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:48,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-08 22:09:48,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:09:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1772711274, now seen corresponding path program 1 times [2025-03-08 22:09:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:09:48,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107223290] [2025-03-08 22:09:48,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:09:48,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:48,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:09:48,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:09:48,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:09:48,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:09:48,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:09:48,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:48,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:09:48,093 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:09:48,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 22:09:48,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 22:09:48,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:09:48,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:09:48,122 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-08 22:09:48,123 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:09:48,125 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-08 22:09:48,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-03-08 22:09:48,127 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-03-08 22:09:48,127 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-08 22:09:48,127 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-08 22:09:48,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:09:48,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:09:48,328 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 22:09:48,348 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 22:09:48,348 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 22:09:48,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 10:09:48 BasicIcfg [2025-03-08 22:09:48,351 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 22:09:48,352 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 22:09:48,352 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 22:09:48,352 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 22:09:48,352 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:09:46" (3/4) ... [2025-03-08 22:09:48,353 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 22:09:48,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 22:09:48,354 INFO L158 Benchmark]: Toolchain (without parser) took 2810.75ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 63.7MB in the end (delta: 27.4MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2025-03-08 22:09:48,354 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:48,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.12ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 62.6MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:09:48,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.15ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 22:09:48,355 INFO L158 Benchmark]: Boogie Preprocessor took 33.75ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:48,355 INFO L158 Benchmark]: IcfgBuilder took 308.01ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 43.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 22:09:48,355 INFO L158 Benchmark]: TraceAbstraction took 2010.66ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 64.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:48,355 INFO L158 Benchmark]: Witness Printer took 2.01ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 63.7MB in the end (delta: 291.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:09:48,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.12ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 62.6MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.15ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 60.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.75ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 308.01ms. Allocated memory is still 117.4MB. Free memory was 59.0MB in the beginning and 43.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2010.66ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 64.0MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.01ms. Allocated memory is still 117.4MB. Free memory was 64.0MB in the beginning and 63.7MB in the end (delta: 291.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=1073741824, tids={2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 89 edges, 5 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: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 263 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 18 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 22:09:48,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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: UNKNOWN: Overapproximated counterexample