./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:42:29,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:42:29,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:42:29,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:42:29,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:42:29,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:42:29,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:42:29,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:42:29,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:42:29,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:42:29,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:42:29,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:42:29,806 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:42:29,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:42:29,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:42:29,807 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:42:29,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:42:29,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:42:29,808 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:42:29,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:42:29,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:42:29,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-02-08 05:42:30,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:42:30,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:42:30,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:42:30,079 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:42:30,080 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:42:30,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-08 05:42:31,240 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b23e0bf90/84483a29a9b24d4883ee7620d812578b/FLAGdbd773a6a [2025-02-08 05:42:31,468 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:42:31,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-08 05:42:31,480 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b23e0bf90/84483a29a9b24d4883ee7620d812578b/FLAGdbd773a6a [2025-02-08 05:42:31,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b23e0bf90/84483a29a9b24d4883ee7620d812578b [2025-02-08 05:42:31,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:42:31,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:42:31,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:42:31,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:42:31,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:42:31,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a27ea88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31, skipping insertion in model container [2025-02-08 05:42:31,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:42:31,772 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-08 05:42:31,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:42:31,790 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:42:31,815 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-08 05:42:31,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:42:31,846 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-02-08 05:42:31,851 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:42:31,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31 WrapperNode [2025-02-08 05:42:31,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:42:31,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:42:31,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:42:31,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:42:31,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,888 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-02-08 05:42:31,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:42:31,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:42:31,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:42:31,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:42:31,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,903 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:42:31,907 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:42:31,907 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:42:31,907 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:42:31,908 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (1/1) ... [2025-02-08 05:42:31,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:42:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:42:31,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:42:31,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-02-08 05:42:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-02-08 05:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:42:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:42:31,954 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:42:32,038 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:42:32,039 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:42:32,230 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:42:32,230 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:42:32,240 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:42:32,241 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:42:32,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:32 BoogieIcfgContainer [2025-02-08 05:42:32,242 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:42:32,244 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:42:32,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:42:32,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:42:32,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:42:31" (1/3) ... [2025-02-08 05:42:32,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e97f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:42:32, skipping insertion in model container [2025-02-08 05:42:32,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:31" (2/3) ... [2025-02-08 05:42:32,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e97f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:42:32, skipping insertion in model container [2025-02-08 05:42:32,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:32" (3/3) ... [2025-02-08 05:42:32,251 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-02-08 05:42:32,263 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:42:32,268 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 75 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-02-08 05:42:32,269 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:42:32,313 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:42:32,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 78 transitions, 163 flow [2025-02-08 05:42:32,379 INFO L124 PetriNetUnfolderBase]: 3/107 cut-off events. [2025-02-08 05:42:32,382 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:42:32,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 3/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 163 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-02-08 05:42:32,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 78 transitions, 163 flow [2025-02-08 05:42:32,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 78 transitions, 163 flow [2025-02-08 05:42:32,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:42:32,412 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;@e1e5d24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:42:32,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 05:42:32,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:42:32,429 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-02-08 05:42:32,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:42:32,429 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:32,430 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] [2025-02-08 05:42:32,430 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)] === [2025-02-08 05:42:32,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:32,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1955497520, now seen corresponding path program 1 times [2025-02-08 05:42:32,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:42:32,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732600365] [2025-02-08 05:42:32,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:32,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:42:32,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:42:32,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:42:32,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:32,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:42:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:42:33,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:42:33,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732600365] [2025-02-08 05:42:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732600365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:42:33,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:42:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:42:33,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435267939] [2025-02-08 05:42:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:42:33,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:42:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:42:33,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:42:33,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:42:33,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 78 [2025-02-08 05:42:33,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2025-02-08 05:42:33,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:42:33,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 78 [2025-02-08 05:42:33,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:42:33,203 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2025-02-08 05:42:33,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:42:33,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 31/115 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2025-02-08 05:42:33,205 INFO L140 encePairwiseOnDemand]: 69/78 looper letters, 13 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2025-02-08 05:42:33,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 166 flow [2025-02-08 05:42:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:42:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:42:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 360 transitions. [2025-02-08 05:42:33,218 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2025-02-08 05:42:33,219 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 163 flow. Second operand 6 states and 360 transitions. [2025-02-08 05:42:33,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 166 flow [2025-02-08 05:42:33,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 63 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:42:33,227 INFO L231 Difference]: Finished difference. Result has 71 places, 62 transitions, 138 flow [2025-02-08 05:42:33,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2025-02-08 05:42:33,234 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2025-02-08 05:42:33,234 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 138 flow [2025-02-08 05:42:33,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2025-02-08 05:42:33,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:33,234 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] [2025-02-08 05:42:33,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:42:33,235 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)] === [2025-02-08 05:42:33,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1051316418, now seen corresponding path program 1 times [2025-02-08 05:42:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:42:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601108362] [2025-02-08 05:42:33,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:33,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:42:33,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:42:33,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:42:33,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:33,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:42:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:42:33,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:42:33,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601108362] [2025-02-08 05:42:33,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601108362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:42:33,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:42:33,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:42:33,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271486682] [2025-02-08 05:42:33,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:42:33,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 05:42:33,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:42:33,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 05:42:33,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:42:33,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 78 [2025-02-08 05:42:33,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 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) [2025-02-08 05:42:33,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:42:33,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 78 [2025-02-08 05:42:33,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:42:33,447 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2025-02-08 05:42:33,447 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:42:33,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 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. [2025-02-08 05:42:33,447 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 9 selfloop transitions, 2 changer transitions 5/67 dead transitions. [2025-02-08 05:42:33,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 180 flow [2025-02-08 05:42:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:42:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:42:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 389 transitions. [2025-02-08 05:42:33,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8311965811965812 [2025-02-08 05:42:33,451 INFO L175 Difference]: Start difference. First operand has 71 places, 62 transitions, 138 flow. Second operand 6 states and 389 transitions. [2025-02-08 05:42:33,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 180 flow [2025-02-08 05:42:33,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 170 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:42:33,453 INFO L231 Difference]: Finished difference. Result has 74 places, 62 transitions, 146 flow [2025-02-08 05:42:33,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=74, PETRI_TRANSITIONS=62} [2025-02-08 05:42:33,456 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, -4 predicate places. [2025-02-08 05:42:33,456 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 62 transitions, 146 flow [2025-02-08 05:42:33,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 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) [2025-02-08 05:42:33,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:33,456 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:42:33,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:42:33,457 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)] === [2025-02-08 05:42:33,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:33,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1295514203, now seen corresponding path program 1 times [2025-02-08 05:42:33,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:42:33,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754281229] [2025-02-08 05:42:33,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:33,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:42:33,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 05:42:33,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 05:42:33,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:33,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:42:33,482 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:42:33,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 05:42:33,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 05:42:33,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:33,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:42:33,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:42:33,510 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:42:33,511 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-02-08 05:42:33,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-02-08 05:42:33,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-02-08 05:42:33,512 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 05:42:33,513 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-02-08 05:42:33,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:42:33,513 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:42:33,537 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:42:33,538 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:42:33,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:42:33 BasicIcfg [2025-02-08 05:42:33,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:42:33,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:42:33,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:42:33,544 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:42:33,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:32" (3/4) ... [2025-02-08 05:42:33,546 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 05:42:33,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:42:33,547 INFO L158 Benchmark]: Toolchain (without parser) took 2052.81ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 71.0MB in the end (delta: 39.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2025-02-08 05:42:33,548 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:33,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.28ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 83.2MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:42:33,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:42:33,549 INFO L158 Benchmark]: Boogie Preprocessor took 16.31ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 888.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:33,549 INFO L158 Benchmark]: IcfgBuilder took 334.88ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 65.5MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:42:33,549 INFO L158 Benchmark]: TraceAbstraction took 1298.78ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 71.9MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:33,549 INFO L158 Benchmark]: Witness Printer took 2.52ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 71.0MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:33,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.28ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 83.2MB in the end (delta: 27.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.31ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 888.7kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 334.88ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 65.5MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1298.78ms. Allocated memory is still 142.6MB. Free memory was 65.2MB in the beginning and 71.9MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.52ms. Allocated memory is still 142.6MB. Free memory was 71.0MB in the beginning and 71.0MB in the end (delta: 24.1kB). 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, 89 locations, 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 34 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred 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, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 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 [2025-02-08 05:42:33,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:42:35,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:42:35,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-08 05:42:35,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:42:35,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:42:35,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:42:35,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:42:35,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:42:35,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:42:35,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:42:35,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:42:35,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:42:35,530 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:42:35,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:42:35,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:42:35,532 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:42:35,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:42:35,532 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:42:35,532 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:42:35,532 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:42:35,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:42:35,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:42:35,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:42:35,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:42:35,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-02-08 05:42:35,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:42:35,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:42:35,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:42:35,781 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:42:35,781 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:42:35,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-08 05:42:36,995 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d55807a84/2ed0c42e5a4b4def95ccd57ccf849913/FLAG7c85454fe [2025-02-08 05:42:37,236 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:42:37,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-02-08 05:42:37,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d55807a84/2ed0c42e5a4b4def95ccd57ccf849913/FLAG7c85454fe [2025-02-08 05:42:37,561 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d55807a84/2ed0c42e5a4b4def95ccd57ccf849913 [2025-02-08 05:42:37,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:42:37,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:42:37,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:42:37,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:42:37,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:42:37,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:37,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b3ce98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37, skipping insertion in model container [2025-02-08 05:42:37,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:37,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:42:37,838 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-08 05:42:37,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:42:37,871 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:42:37,912 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-02-08 05:42:37,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:42:37,959 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-02-08 05:42:37,966 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:42:37,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37 WrapperNode [2025-02-08 05:42:37,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:42:37,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:42:37,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:42:37,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:42:37,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:37,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,014 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-02-08 05:42:38,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:42:38,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:42:38,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:42:38,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:42:38,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:42:38,053 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:42:38,056 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:42:38,057 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:42:38,058 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (1/1) ... [2025-02-08 05:42:38,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:42:38,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:42:38,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:42:38,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:42:38,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-02-08 05:42:38,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-02-08 05:42:38,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:42:38,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:42:38,119 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:42:38,241 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:42:38,243 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:42:38,383 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:42:38,384 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:42:38,390 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:42:38,390 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:42:38,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:38 BoogieIcfgContainer [2025-02-08 05:42:38,391 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:42:38,392 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:42:38,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:42:38,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:42:38,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:42:37" (1/3) ... [2025-02-08 05:42:38,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696b55c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:42:38, skipping insertion in model container [2025-02-08 05:42:38,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:42:37" (2/3) ... [2025-02-08 05:42:38,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696b55c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:42:38, skipping insertion in model container [2025-02-08 05:42:38,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:38" (3/3) ... [2025-02-08 05:42:38,399 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-02-08 05:42:38,410 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:42:38,411 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. [2025-02-08 05:42:38,411 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:42:38,458 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:42:38,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-02-08 05:42:38,524 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-02-08 05:42:38,525 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:42:38,530 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 157 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. [2025-02-08 05:42:38,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-02-08 05:42:38,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-02-08 05:42:38,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:42:38,545 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;@50fdbd6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:42:38,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 05:42:38,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:42:38,557 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-02-08 05:42:38,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:42:38,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:38,558 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] [2025-02-08 05:42:38,559 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)] === [2025-02-08 05:42:38,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1607399538, now seen corresponding path program 1 times [2025-02-08 05:42:38,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:42:38,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938128474] [2025-02-08 05:42:38,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:38,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:38,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:42:38,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:42:38,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:42:38,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:42:38,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:42:38,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:38,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:42:38,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-08 05:42:38,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:42:38,875 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 [2025-02-08 05:42:38,917 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 [2025-02-08 05:42:38,979 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:42:38,980 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 [2025-02-08 05:42:39,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:42:39,051 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 [2025-02-08 05:42:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:42:39,102 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:42:39,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:42:39,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938128474] [2025-02-08 05:42:39,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938128474] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:42:39,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:42:39,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 05:42:39,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451626061] [2025-02-08 05:42:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:42:39,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 05:42:39,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:42:39,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 05:42:39,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-02-08 05:42:39,434 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 77 [2025-02-08 05:42:39,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 11 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 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) [2025-02-08 05:42:39,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:42:39,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 77 [2025-02-08 05:42:39,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:42:39,558 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2025-02-08 05:42:39,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:42:39,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 33/118 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2025-02-08 05:42:39,560 INFO L140 encePairwiseOnDemand]: 57/77 looper letters, 17 selfloop transitions, 16 changer transitions 1/71 dead transitions. [2025-02-08 05:42:39,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 71 transitions, 214 flow [2025-02-08 05:42:39,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 05:42:39,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 05:42:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 596 transitions. [2025-02-08 05:42:39,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.645021645021645 [2025-02-08 05:42:39,577 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 12 states and 596 transitions. [2025-02-08 05:42:39,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 71 transitions, 214 flow [2025-02-08 05:42:39,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:42:39,587 INFO L231 Difference]: Finished difference. Result has 83 places, 68 transitions, 197 flow [2025-02-08 05:42:39,589 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=197, PETRI_PLACES=83, PETRI_TRANSITIONS=68} [2025-02-08 05:42:39,592 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-02-08 05:42:39,593 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 68 transitions, 197 flow [2025-02-08 05:42:39,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 47.54545454545455) internal successors, (523), 11 states have internal predecessors, (523), 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) [2025-02-08 05:42:39,594 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:39,594 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] [2025-02-08 05:42:39,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:42:39,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:39,795 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)] === [2025-02-08 05:42:39,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:39,795 INFO L85 PathProgramCache]: Analyzing trace with hash 670991587, now seen corresponding path program 1 times [2025-02-08 05:42:39,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:42:39,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053355506] [2025-02-08 05:42:39,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:39,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:42:39,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:42:39,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:42:39,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-08 05:42:39,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-08 05:42:39,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:39,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:42:39,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:42:39,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:42:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:42:39,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:42:39,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:42:39,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053355506] [2025-02-08 05:42:39,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053355506] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:42:39,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:42:39,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:42:39,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62094720] [2025-02-08 05:42:39,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:42:39,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 05:42:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:42:39,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 05:42:39,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:42:39,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-02-08 05:42:39,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 68 transitions, 197 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) [2025-02-08 05:42:39,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:42:39,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-02-08 05:42:39,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:42:39,973 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2025-02-08 05:42:39,973 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:42:39,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 83 events. 0/83 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-02-08 05:42:39,974 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 9 selfloop transitions, 2 changer transitions 5/72 dead transitions. [2025-02-08 05:42:39,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 72 transitions, 239 flow [2025-02-08 05:42:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:42:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:42:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2025-02-08 05:42:39,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.829004329004329 [2025-02-08 05:42:39,991 INFO L175 Difference]: Start difference. First operand has 83 places, 68 transitions, 197 flow. Second operand 6 states and 383 transitions. [2025-02-08 05:42:39,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 72 transitions, 239 flow [2025-02-08 05:42:39,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 216 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 05:42:39,993 INFO L231 Difference]: Finished difference. Result has 83 places, 67 transitions, 188 flow [2025-02-08 05:42:39,994 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=188, PETRI_PLACES=83, PETRI_TRANSITIONS=67} [2025-02-08 05:42:39,994 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2025-02-08 05:42:39,994 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 67 transitions, 188 flow [2025-02-08 05:42:39,994 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) [2025-02-08 05:42:39,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:42:39,996 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:42:40,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 05:42:40,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:40,197 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)] === [2025-02-08 05:42:40,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:42:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1384813832, now seen corresponding path program 1 times [2025-02-08 05:42:40,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:42:40,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066245203] [2025-02-08 05:42:40,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:42:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:40,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:42:40,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:42:40,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:42:40,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 05:42:40,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 05:42:40,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:40,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:42:40,263 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:42:40,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 05:42:40,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 05:42:40,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:42:40,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:42:40,294 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 05:42:40,294 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:42:40,295 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-02-08 05:42:40,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-02-08 05:42:40,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-02-08 05:42:40,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 05:42:40,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-02-08 05:42:40,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:42:40,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:42:40,497 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 05:42:40,514 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:42:40,514 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:42:40,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:42:40 BasicIcfg [2025-02-08 05:42:40,518 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:42:40,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:42:40,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:42:40,519 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:42:40,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:42:38" (3/4) ... [2025-02-08 05:42:40,520 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 05:42:40,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:42:40,522 INFO L158 Benchmark]: Toolchain (without parser) took 2957.44ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 45.0MB in the end (delta: 12.9MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2025-02-08 05:42:40,522 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:40,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.49ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 29.8MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:42:40,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.18ms. Allocated memory is still 83.9MB. Free memory was 29.8MB in the beginning and 27.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:42:40,522 INFO L158 Benchmark]: Boogie Preprocessor took 35.35ms. Allocated memory is still 83.9MB. Free memory was 27.5MB in the beginning and 26.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:40,523 INFO L158 Benchmark]: IcfgBuilder took 338.09ms. Allocated memory is still 83.9MB. Free memory was 26.0MB in the beginning and 47.6MB in the end (delta: -21.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-02-08 05:42:40,523 INFO L158 Benchmark]: TraceAbstraction took 2125.46ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2025-02-08 05:42:40,523 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:42:40,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.49ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 29.8MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.18ms. Allocated memory is still 83.9MB. Free memory was 29.8MB in the beginning and 27.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.35ms. Allocated memory is still 83.9MB. Free memory was 27.5MB in the beginning and 26.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 338.09ms. Allocated memory is still 83.9MB. Free memory was 26.0MB in the beginning and 47.6MB in the end (delta: -21.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2125.46ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 45.0MB in the end (delta: 5.6kB). 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, 87 locations, 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 309 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 6 mSDtfsCounter, 523 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=197occurred 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, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 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 [2025-02-08 05:42:40,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample