./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 f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:27:54,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:27:54,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:27:54,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:27:54,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:27:54,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:27:54,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:27:54,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:27:54,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:27:54,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:27:54,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:27:54,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:27:54,638 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:27:54,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:27:54,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:27:54,640 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:27:54,640 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:27:54,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:27:54,641 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-03-13 22:27:54,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:27:54,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:27:54,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:27:54,879 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:27:54,879 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:27:54,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-13 22:27:56,000 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2de218/56ab05a89cf54004b632b173b27cb0a7/FLAGc6e9f4d0f [2025-03-13 22:27:56,313 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:27:56,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-13 22:27:56,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2de218/56ab05a89cf54004b632b173b27cb0a7/FLAGc6e9f4d0f [2025-03-13 22:27:56,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abc2de218/56ab05a89cf54004b632b173b27cb0a7 [2025-03-13 22:27:56,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:27:56,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:27:56,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:27:56,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:27:56,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:27:56,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29aaf455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56, skipping insertion in model container [2025-03-13 22:27:56,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:27:56,845 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-13 22:27:56,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:27:56,863 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:27:56,894 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-13 22:27:56,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:27:56,927 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-03-13 22:27:56,932 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:27:56,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56 WrapperNode [2025-03-13 22:27:56,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:27:56,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:27:56,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:27:56,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:27:56,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,965 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-03-13 22:27:56,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:27:56,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:27:56,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:27:56,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:27:56,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,978 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:27:56,985 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:27:56,985 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:27:56,985 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:27:56,986 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (1/1) ... [2025-03-13 22:27:56,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:27:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:27:57,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:27:57,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:27:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:27:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-13 22:27:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-13 22:27:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:27:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:27:57,029 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:27:57,114 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:27:57,116 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:27:57,265 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:27:57,265 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:27:57,265 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:27:57,272 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:27:57,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:27:57 BoogieIcfgContainer [2025-03-13 22:27:57,273 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:27:57,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:27:57,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:27:57,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:27:57,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:27:56" (1/3) ... [2025-03-13 22:27:57,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db92dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:27:57, skipping insertion in model container [2025-03-13 22:27:57,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:27:56" (2/3) ... [2025-03-13 22:27:57,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db92dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:27:57, skipping insertion in model container [2025-03-13 22:27:57,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:27:57" (3/3) ... [2025-03-13 22:27:57,280 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-03-13 22:27:57,290 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:27:57,292 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 74 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-03-13 22:27:57,292 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:27:57,333 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 22:27:57,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-03-13 22:27:57,399 INFO L124 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-03-13 22:27:57,401 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:27:57,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 3/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-03-13 22:27:57,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-03-13 22:27:57,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-03-13 22:27:57,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:27:57,419 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;@618f336c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:27:57,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-13 22:27:57,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:27:57,432 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-03-13 22:27:57,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:27:57,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:27:57,433 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:27:57,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:27:57,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:27:57,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1439484660, now seen corresponding path program 1 times [2025-03-13 22:27:57,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:27:57,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698138264] [2025-03-13 22:27:57,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:27:57,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:27:57,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-13 22:27:57,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-13 22:27:57,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:27:57,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:27:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:27:58,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:27:58,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698138264] [2025-03-13 22:27:58,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698138264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:27:58,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:27:58,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:27:58,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742814737] [2025-03-13 22:27:58,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:27:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:27:58,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:27:58,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:27:58,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:27:58,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2025-03-13 22:27:58,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:27:58,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:27:58,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2025-03-13 22:27:58,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:27:58,290 INFO L124 PetriNetUnfolderBase]: 0/90 cut-off events. [2025-03-13 22:27:58,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:27:58,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 90 events. 0/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 16/99 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2025-03-13 22:27:58,292 INFO L140 encePairwiseOnDemand]: 68/77 looper letters, 13 selfloop transitions, 5 changer transitions 1/62 dead transitions. [2025-03-13 22:27:58,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 164 flow [2025-03-13 22:27:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:27:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:27:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 354 transitions. [2025-03-13 22:27:58,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7662337662337663 [2025-03-13 22:27:58,309 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 6 states and 354 transitions. [2025-03-13 22:27:58,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 164 flow [2025-03-13 22:27:58,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:27:58,318 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 136 flow [2025-03-13 22:27:58,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-03-13 22:27:58,323 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-03-13 22:27:58,323 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 136 flow [2025-03-13 22:27:58,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:27:58,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:27:58,323 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:27:58,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:27:58,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:27:58,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:27:58,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1856276668, now seen corresponding path program 1 times [2025-03-13 22:27:58,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:27:58,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107732128] [2025-03-13 22:27:58,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:27:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:27:58,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-13 22:27:58,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-13 22:27:58,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:27:58,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:27:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:27:58,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:27:58,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107732128] [2025-03-13 22:27:58,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107732128] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:27:58,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:27:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:27:58,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614125207] [2025-03-13 22:27:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:27:58,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 22:27:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:27:58,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 22:27:58,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-13 22:27:58,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-03-13 22:27:58,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:27:58,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:27:58,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-03-13 22:27:58,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:27:58,509 INFO L124 PetriNetUnfolderBase]: 0/81 cut-off events. [2025-03-13 22:27:58,509 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:27:58,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 81 events. 0/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-03-13 22:27:58,510 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 9 selfloop transitions, 2 changer transitions 5/66 dead transitions. [2025-03-13 22:27:58,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 178 flow [2025-03-13 22:27:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:27:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:27:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2025-03-13 22:27:58,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.829004329004329 [2025-03-13 22:27:58,512 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 136 flow. Second operand 6 states and 383 transitions. [2025-03-13 22:27:58,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 178 flow [2025-03-13 22:27:58,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 168 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:27:58,514 INFO L231 Difference]: Finished difference. Result has 73 places, 61 transitions, 144 flow [2025-03-13 22:27:58,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2025-03-13 22:27:58,514 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-03-13 22:27:58,514 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 61 transitions, 144 flow [2025-03-13 22:27:58,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:27:58,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:27:58,515 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:27:58,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:27:58,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:27:58,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:27:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1253464510, now seen corresponding path program 1 times [2025-03-13 22:27:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:27:58,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99412306] [2025-03-13 22:27:58,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:27:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:27:58,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 22:27:58,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 22:27:58,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:27:58,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:27:58,531 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:27:58,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 22:27:58,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 22:27:58,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:27:58,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:27:58,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:27:58,560 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:27:58,560 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-13 22:27:58,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-03-13 22:27:58,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-03-13 22:27:58,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-13 22:27:58,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-13 22:27:58,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:27:58,562 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 22:27:58,584 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:27:58,584 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:27:58,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:27:58 BasicIcfg [2025-03-13 22:27:58,591 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:27:58,592 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:27:58,592 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:27:58,592 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:27:58,592 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:27:57" (3/4) ... [2025-03-13 22:27:58,594 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-13 22:27:58,594 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:27:58,595 INFO L158 Benchmark]: Toolchain (without parser) took 2017.13ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 113.5MB in the end (delta: 7.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2025-03-13 22:27:58,596 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:27:58,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.88ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 93.4MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:27:58,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.62ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 90.5MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:27:58,597 INFO L158 Benchmark]: Boogie Preprocessor took 18.91ms. Allocated memory is still 167.8MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 978.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:27:58,597 INFO L158 Benchmark]: IcfgBuilder took 287.31ms. Allocated memory is still 167.8MB. Free memory was 89.5MB in the beginning and 75.7MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:27:58,597 INFO L158 Benchmark]: TraceAbstraction took 1317.02ms. Allocated memory is still 167.8MB. Free memory was 74.7MB in the beginning and 113.6MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:27:58,598 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 113.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:27:58,599 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.88ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 93.4MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.62ms. Allocated memory is still 167.8MB. Free memory was 93.4MB in the beginning and 90.5MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.91ms. Allocated memory is still 167.8MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 978.7kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 287.31ms. Allocated memory is still 167.8MB. Free memory was 89.5MB in the beginning and 75.7MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1317.02ms. Allocated memory is still 167.8MB. Free memory was 74.7MB in the beginning and 113.6MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 113.5MB in the end (delta: 27.1kB). 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, 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: 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, 154 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-13 22:27:58,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:28:00,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:28:00,488 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-03-13 22:28:00,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:28:00,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:28:00,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:28:00,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:28:00,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:28:00,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:28:00,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:28:00,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:28:00,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:28:00,518 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:28:00,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:28:00,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-13 22:28:00,519 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:28:00,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:28:00,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:28:00,520 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e871b2733ca48641b94165aca85ae57dbaeb869d27034829a9a99745860b5f9f [2025-03-13 22:28:00,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:28:00,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:28:00,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:28:00,766 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:28:00,767 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:28:00,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-13 22:28:01,923 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf0d5d52/bfa177dee61c4e859d8df2013167267e/FLAGbac3c1d38 [2025-03-13 22:28:02,184 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:28:02,185 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/atomic-gcc.i [2025-03-13 22:28:02,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf0d5d52/bfa177dee61c4e859d8df2013167267e/FLAGbac3c1d38 [2025-03-13 22:28:02,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf0d5d52/bfa177dee61c4e859d8df2013167267e [2025-03-13 22:28:02,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:28:02,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:28:02,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:28:02,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:28:02,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:28:02,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d5f14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02, skipping insertion in model container [2025-03-13 22:28:02,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:28:02,780 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-13 22:28:02,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:28:02,809 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:28:02,851 WARN L639 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-03-13 22:28:02,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:28:02,903 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-03-13 22:28:02,908 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:28:02,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02 WrapperNode [2025-03-13 22:28:02,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:28:02,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:28:02,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:28:02,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:28:02,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,951 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-03-13 22:28:02,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:28:02,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:28:02,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:28:02,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:28:02,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,974 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:28:02,987 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:28:02,988 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:28:02,988 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:28:02,989 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (1/1) ... [2025-03-13 22:28:02,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:28:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:28:03,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:28:03,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:28:03,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-03-13 22:28:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-03-13 22:28:03,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:28:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:28:03,039 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:28:03,145 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:28:03,146 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:28:03,357 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:28:03,358 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:28:03,358 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:28:03,368 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:28:03,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:28:03 BoogieIcfgContainer [2025-03-13 22:28:03,369 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:28:03,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:28:03,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:28:03,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:28:03,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:28:02" (1/3) ... [2025-03-13 22:28:03,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62059c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:28:03, skipping insertion in model container [2025-03-13 22:28:03,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:28:02" (2/3) ... [2025-03-13 22:28:03,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62059c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:28:03, skipping insertion in model container [2025-03-13 22:28:03,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:28:03" (3/3) ... [2025-03-13 22:28:03,378 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-03-13 22:28:03,389 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:28:03,390 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 73 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-03-13 22:28:03,390 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:28:03,453 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 22:28:03,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 76 transitions, 159 flow [2025-03-13 22:28:03,521 INFO L124 PetriNetUnfolderBase]: 3/105 cut-off events. [2025-03-13 22:28:03,523 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:28:03,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 3/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2025-03-13 22:28:03,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 76 transitions, 159 flow [2025-03-13 22:28:03,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 76 transitions, 159 flow [2025-03-13 22:28:03,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:28:03,546 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;@392fc14f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:28:03,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-13 22:28:03,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:28:03,561 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-03-13 22:28:03,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:28:03,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:28:03,562 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:28:03,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:28:03,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:28:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1645132029, now seen corresponding path program 1 times [2025-03-13 22:28:03,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-13 22:28:03,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838619856] [2025-03-13 22:28:03,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:28:03,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:03,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:28:03,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-13 22:28:03,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-13 22:28:03,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-13 22:28:03,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-13 22:28:03,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:28:03,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:28:03,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-13 22:28:03,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:28:03,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-03-13 22:28:03,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2025-03-13 22:28:03,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-13 22:28:03,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2025-03-13 22:28:04,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-13 22:28:04,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2025-03-13 22:28:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:28:04,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:28:04,059 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-13 22:28:04,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838619856] [2025-03-13 22:28:04,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838619856] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:28:04,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:28:04,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-13 22:28:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813527799] [2025-03-13 22:28:04,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:28:04,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-13 22:28:04,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-13 22:28:04,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-13 22:28:04,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-13 22:28:04,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 76 [2025-03-13 22:28:04,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 159 flow. Second operand has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:28:04,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:28:04,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 76 [2025-03-13 22:28:04,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:28:04,453 INFO L124 PetriNetUnfolderBase]: 0/91 cut-off events. [2025-03-13 22:28:04,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:28:04,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 17/101 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2025-03-13 22:28:04,456 INFO L140 encePairwiseOnDemand]: 56/76 looper letters, 17 selfloop transitions, 16 changer transitions 1/70 dead transitions. [2025-03-13 22:28:04,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 212 flow [2025-03-13 22:28:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-13 22:28:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-13 22:28:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 584 transitions. [2025-03-13 22:28:04,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2025-03-13 22:28:04,472 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 159 flow. Second operand 12 states and 584 transitions. [2025-03-13 22:28:04,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 212 flow [2025-03-13 22:28:04,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 70 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:28:04,482 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 195 flow [2025-03-13 22:28:04,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=195, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2025-03-13 22:28:04,486 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-03-13 22:28:04,486 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 195 flow [2025-03-13 22:28:04,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.54545454545455) internal successors, (512), 11 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:28:04,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:28:04,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:28:04,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-13 22:28:04,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:04,688 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:28:04,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:28:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash -352210636, now seen corresponding path program 1 times [2025-03-13 22:28:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-13 22:28:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12559187] [2025-03-13 22:28:04,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:28:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:28:04,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-13 22:28:04,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-13 22:28:04,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-13 22:28:04,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-13 22:28:04,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:28:04,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:28:04,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-13 22:28:04,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:28:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:28:04,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-13 22:28:04,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-13 22:28:04,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12559187] [2025-03-13 22:28:04,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12559187] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:28:04,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:28:04,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:28:04,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680847917] [2025-03-13 22:28:04,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:28:04,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 22:28:04,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-13 22:28:04,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 22:28:04,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-13 22:28:04,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 76 [2025-03-13 22:28:04,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:28:04,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:28:04,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 76 [2025-03-13 22:28:04,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:28:04,923 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2025-03-13 22:28:04,923 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-13 22:28:04,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 82 events. 0/82 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-03-13 22:28:04,924 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 9 selfloop transitions, 2 changer transitions 5/71 dead transitions. [2025-03-13 22:28:04,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 71 transitions, 237 flow [2025-03-13 22:28:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:28:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:28:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 377 transitions. [2025-03-13 22:28:04,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8267543859649122 [2025-03-13 22:28:04,925 INFO L175 Difference]: Start difference. First operand has 82 places, 67 transitions, 195 flow. Second operand 6 states and 377 transitions. [2025-03-13 22:28:04,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 71 transitions, 237 flow [2025-03-13 22:28:04,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 71 transitions, 214 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-13 22:28:04,931 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 186 flow [2025-03-13 22:28:04,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2025-03-13 22:28:04,931 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-03-13 22:28:04,932 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 186 flow [2025-03-13 22:28:04,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:28:04,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:28:04,933 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:28:04,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-13 22:28:05,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:05,134 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-13 22:28:05,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:28:05,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1772711274, now seen corresponding path program 1 times [2025-03-13 22:28:05,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-13 22:28:05,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069335255] [2025-03-13 22:28:05,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:28:05,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:05,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:28:05,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-13 22:28:05,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-13 22:28:05,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 22:28:05,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 22:28:05,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:28:05,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:28:05,191 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:28:05,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-13 22:28:05,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-13 22:28:05,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:28:05,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:28:05,220 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-13 22:28:05,222 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:28:05,223 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-13 22:28:05,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-03-13 22:28:05,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-03-13 22:28:05,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-13 22:28:05,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-13 22:28:05,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-13 22:28:05,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:28:05,425 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 22:28:05,445 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:28:05,445 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:28:05,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:28:05 BasicIcfg [2025-03-13 22:28:05,449 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:28:05,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:28:05,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:28:05,451 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:28:05,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:28:03" (3/4) ... [2025-03-13 22:28:05,452 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-13 22:28:05,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:28:05,454 INFO L158 Benchmark]: Toolchain (without parser) took 2940.76ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 64.6MB in the end (delta: 26.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2025-03-13 22:28:05,454 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 37.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:28:05,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 62.2MB in the end (delta: 28.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:28:05,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.97ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:28:05,456 INFO L158 Benchmark]: Boogie Preprocessor took 32.41ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 58.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:28:05,456 INFO L158 Benchmark]: IcfgBuilder took 382.31ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 42.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:28:05,457 INFO L158 Benchmark]: TraceAbstraction took 2077.81ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 64.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:28:05,457 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 64.6MB in the end (delta: 8.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:28:05,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 37.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.18ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 62.2MB in the end (delta: 28.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.97ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.41ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 58.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 382.31ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 42.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2077.81ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 64.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 64.6MB in the end (delta: 8.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data={1:0}] [L1026] RET 0 assume_abort_if_not(threads_total >= 0) [L1027] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data={1:0}, threads_total=1073741824, tids={2:0}] [L1028] 0 int i = 0; VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1028] COND TRUE 0 i < threads_total VAL [data={1:0}] [L1029] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1029] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data={1:0}, i=0, threads_total=1073741824, tids={2:0}] [L1021] CALL 1 __sync_fetch_and_add(&data, 1) - UnprovableResult [Line: 1029]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 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, 265 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 263 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 432 IncrementalHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 18 mSDtfsCounter, 432 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-13 22:28:05,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample