./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/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-wip.fs.system-includes-da04345-m [2025-04-30 10:29:09,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:29:09,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:29:09,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:29:09,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:29:09,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:29:09,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:29:09,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:29:09,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:29:09,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:29:09,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:29:09,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:29:09,393 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:29:09,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:29:09,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:29:09,395 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:29:09,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:09,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:09,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:29:09,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:29:09,396 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 [2025-04-30 10:29:09,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:29:09,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:29:09,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:29:09,637 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:29:09,637 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:29:09,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.i [2025-04-30 10:29:10,985 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d37dc6a9/86ff4680c7aa47a8afecfbe492ffe129/FLAG9a42183d3 [2025-04-30 10:29:11,232 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:29:11,233 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.i [2025-04-30 10:29:11,243 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d37dc6a9/86ff4680c7aa47a8afecfbe492ffe129/FLAG9a42183d3 [2025-04-30 10:29:11,985 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d37dc6a9/86ff4680c7aa47a8afecfbe492ffe129 [2025-04-30 10:29:11,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:29:11,988 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:29:11,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:11,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:29:11,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:29:12,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:11" (1/1) ... [2025-04-30 10:29:12,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70bffffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12, skipping insertion in model container [2025-04-30 10:29:12,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:11" (1/1) ... [2025-04-30 10:29:12,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:29:12,422 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-30 10:29:12,438 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:12,444 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:29:12,499 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-30 10:29:12,507 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:12,540 WARN L1206 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-04-30 10:29:12,546 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:29:12,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12 WrapperNode [2025-04-30 10:29:12,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:12,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:12,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:29:12,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:29:12,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,587 INFO L138 Inliner]: procedures = 264, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-04-30 10:29:12,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:12,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:29:12,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:29:12,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:29:12,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,605 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:29:12,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:29:12,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:29:12,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:29:12,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (1/1) ... [2025-04-30 10:29:12,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:12,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:12,641 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) [2025-04-30 10:29:12,643 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 [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:29:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-30 10:29:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-30 10:29:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:29:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:29:12,662 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:29:12,769 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:29:12,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:29:12,922 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:29:12,922 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:29:12,932 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:29:12,933 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:29:12,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:12 BoogieIcfgContainer [2025-04-30 10:29:12,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:29:12,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:29:12,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:29:12,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:29:12,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:29:11" (1/3) ... [2025-04-30 10:29:12,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d711f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:12, skipping insertion in model container [2025-04-30 10:29:12,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:12" (2/3) ... [2025-04-30 10:29:12,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d711f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:12, skipping insertion in model container [2025-04-30 10:29:12,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:12" (3/3) ... [2025-04-30 10:29:12,941 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-04-30 10:29:12,951 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:29:12,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 74 locations, 76 edges, 1 initial locations, 3 loop locations, and 3 error locations. [2025-04-30 10:29:12,953 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:29:13,005 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:29:13,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 77 transitions, 161 flow [2025-04-30 10:29:13,079 INFO L116 PetriNetUnfolderBase]: 3/106 cut-off events. [2025-04-30 10:29:13,082 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:13,085 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 159 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. [2025-04-30 10:29:13,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 77 transitions, 161 flow [2025-04-30 10:29:13,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 77 transitions, 161 flow [2025-04-30 10:29:13,094 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:29:13,107 INFO L340 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;@50a2ae5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:29:13,108 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-30 10:29:13,122 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:29:13,124 INFO L116 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-04-30 10:29:13,124 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:13,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:13,125 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] [2025-04-30 10:29:13,126 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:13,131 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1230372540, now seen corresponding path program 1 times [2025-04-30 10:29:13,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:13,138 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712427813] [2025-04-30 10:29:13,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:13,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:13,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-30 10:29:13,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-30 10:29:13,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:13,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:13,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:13,490 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712427813] [2025-04-30 10:29:13,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712427813] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:13,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:13,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:29:13,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542318367] [2025-04-30 10:29:13,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:13,497 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:29:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:13,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:29:13,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:29:13,632 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 77 [2025-04-30 10:29:13,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 161 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) [2025-04-30 10:29:13,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:13,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 77 [2025-04-30 10:29:13,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:13,666 INFO L116 PetriNetUnfolderBase]: 0/84 cut-off events. [2025-04-30 10:29:13,666 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:13,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-04-30 10:29:13,668 INFO L140 encePairwiseOnDemand]: 66/77 looper letters, 9 selfloop transitions, 2 changer transitions 6/68 dead transitions. [2025-04-30 10:29:13,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 172 flow [2025-04-30 10:29:13,669 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:29:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:29:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2025-04-30 10:29:13,678 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8398268398268398 [2025-04-30 10:29:13,680 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 161 flow. Second operand 6 states and 388 transitions. [2025-04-30 10:29:13,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 172 flow [2025-04-30 10:29:13,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:29:13,691 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 146 flow [2025-04-30 10:29:13,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2025-04-30 10:29:13,695 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -2 predicate places. [2025-04-30 10:29:13,697 INFO L485 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 146 flow [2025-04-30 10:29:13,697 INFO L486 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) [2025-04-30 10:29:13,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:13,697 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] [2025-04-30 10:29:13,698 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:29:13,698 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:13,699 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:13,699 INFO L85 PathProgramCache]: Analyzing trace with hash -330193345, now seen corresponding path program 1 times [2025-04-30 10:29:13,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:13,700 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107803930] [2025-04-30 10:29:13,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:13,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:13,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-30 10:29:13,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-30 10:29:13,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:13,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:14,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:29:14,068 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107803930] [2025-04-30 10:29:14,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107803930] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:14,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:14,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:29:14,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696966726] [2025-04-30 10:29:14,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:14,070 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:29:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:29:14,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:29:14,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:29:14,200 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 77 [2025-04-30 10:29:14,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 146 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) [2025-04-30 10:29:14,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:14,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 77 [2025-04-30 10:29:14,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:14,238 INFO L116 PetriNetUnfolderBase]: 0/71 cut-off events. [2025-04-30 10:29:14,238 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-30 10:29:14,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 71 events. 0/71 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2025-04-30 10:29:14,238 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 13 selfloop transitions, 5 changer transitions 0/61 dead transitions. [2025-04-30 10:29:14,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 61 transitions, 180 flow [2025-04-30 10:29:14,239 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:29:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:29:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 343 transitions. [2025-04-30 10:29:14,241 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2025-04-30 10:29:14,241 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 146 flow. Second operand 6 states and 343 transitions. [2025-04-30 10:29:14,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 61 transitions, 180 flow [2025-04-30 10:29:14,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 166 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-04-30 10:29:14,242 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 140 flow [2025-04-30 10:29:14,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-04-30 10:29:14,243 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-04-30 10:29:14,245 INFO L485 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 140 flow [2025-04-30 10:29:14,246 INFO L486 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) [2025-04-30 10:29:14,246 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:14,246 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] [2025-04-30 10:29:14,246 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:29:14,246 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:14,247 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash -630358725, now seen corresponding path program 1 times [2025-04-30 10:29:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:29:14,247 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960707310] [2025-04-30 10:29:14,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:29:14,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:29:14,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:29:14,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:14,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:29:14,272 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:29:14,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:29:14,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:29:14,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:14,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:29:14,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:29:14,292 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:29:14,293 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-04-30 10:29:14,294 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-04-30 10:29:14,294 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-04-30 10:29:14,294 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-30 10:29:14,295 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-04-30 10:29:14,295 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:29:14,295 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:29:14,320 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:29:14,320 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:29:14,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:29:14 BasicIcfg [2025-04-30 10:29:14,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:29:14,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:29:14,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:29:14,328 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:29:14,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:12" (3/4) ... [2025-04-30 10:29:14,330 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:29:14,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:29:14,331 INFO L158 Benchmark]: Toolchain (without parser) took 2342.64ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 109.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2025-04-30 10:29:14,331 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:14,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.05ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 91.4MB in the end (delta: 30.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:29:14,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.39ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:14,332 INFO L158 Benchmark]: Boogie Preprocessor took 27.44ms. Allocated memory is still 167.8MB. Free memory was 89.4MB in the beginning and 87.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:14,333 INFO L158 Benchmark]: RCFGBuilder took 318.05ms. Allocated memory is still 167.8MB. Free memory was 87.4MB in the beginning and 72.6MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:29:14,333 INFO L158 Benchmark]: TraceAbstraction took 1391.52ms. Allocated memory is still 167.8MB. Free memory was 72.6MB in the beginning and 110.7MB in the end (delta: -38.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:14,333 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:14,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.05ms. Allocated memory is still 167.8MB. Free memory was 121.5MB in the beginning and 91.4MB in the end (delta: 30.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.39ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.44ms. Allocated memory is still 167.8MB. Free memory was 89.4MB in the beginning and 87.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.05ms. Allocated memory is still 167.8MB. Free memory was 87.4MB in the beginning and 72.6MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1391.52ms. Allocated memory is still 167.8MB. Free memory was 72.6MB in the beginning and 110.7MB in the end (delta: -38.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.7MB in the end (delta: 1.0MB). 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 [\at(cond, Pre)=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: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 91 edges, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 199 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 [2025-04-30 10:29:14,345 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 ../../../trunk/examples/svcomp/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-wip.fs.system-includes-da04345-m [2025-04-30 10:29:16,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:29:16,271 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-04-30 10:29:16,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:29:16,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:29:16,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:29:16,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:29:16,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:29:16,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:29:16,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:29:16,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:29:16,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:29:16,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:29:16,300 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:16,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:29:16,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:16,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:29:16,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:29:16,301 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 [2025-04-30 10:29:16,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:29:16,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:29:16,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:29:16,578 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:29:16,578 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:29:16,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.i [2025-04-30 10:29:18,012 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb967743/ac40c7c9fe9644ef989fa7f50cbfd421/FLAG510506e20 [2025-04-30 10:29:18,212 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:29:18,212 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-race-challenges/atomic-gcc.i [2025-04-30 10:29:18,227 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb967743/ac40c7c9fe9644ef989fa7f50cbfd421/FLAG510506e20 [2025-04-30 10:29:19,212 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb967743/ac40c7c9fe9644ef989fa7f50cbfd421 [2025-04-30 10:29:19,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:29:19,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:29:19,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:19,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:29:19,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:29:19,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d44a955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19, skipping insertion in model container [2025-04-30 10:29:19,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:29:19,555 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-30 10:29:19,580 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:19,589 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:29:19,636 WARN L638 FunctionHandler]: implicit declaration of function __sync_fetch_and_add [2025-04-30 10:29:19,642 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:29:19,682 WARN L1206 FunctionHandler]: The following functions are not defined or handled internally: __sync_fetch_and_add [2025-04-30 10:29:19,689 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:29:19,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19 WrapperNode [2025-04-30 10:29:19,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:29:19,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:19,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:29:19,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:29:19,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,736 INFO L138 Inliner]: procedures = 265, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-04-30 10:29:19,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:29:19,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:29:19,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:29:19,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:29:19,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,764 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:29:19,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:29:19,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:29:19,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:29:19,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (1/1) ... [2025-04-30 10:29:19,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:29:19,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:19,828 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) [2025-04-30 10:29:19,831 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 [2025-04-30 10:29:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2025-04-30 10:29:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2025-04-30 10:29:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:29:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:29:19,850 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:29:19,969 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:29:19,971 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:29:20,152 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:29:20,152 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:29:20,159 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:29:20,159 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:29:20,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:20 BoogieIcfgContainer [2025-04-30 10:29:20,160 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:29:20,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:29:20,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:29:20,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:29:20,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:29:19" (1/3) ... [2025-04-30 10:29:20,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27375aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:20, skipping insertion in model container [2025-04-30 10:29:20,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:29:19" (2/3) ... [2025-04-30 10:29:20,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27375aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:29:20, skipping insertion in model container [2025-04-30 10:29:20,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:20" (3/3) ... [2025-04-30 10:29:20,167 INFO L128 eAbstractionObserver]: Analyzing ICFG atomic-gcc.i [2025-04-30 10:29:20,178 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:29:20,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG atomic-gcc.i that has 2 procedures, 73 locations, 75 edges, 1 initial locations, 3 loop locations, and 3 error locations. [2025-04-30 10:29:20,180 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:29:20,230 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:29:20,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 76 transitions, 159 flow [2025-04-30 10:29:20,295 INFO L116 PetriNetUnfolderBase]: 3/105 cut-off events. [2025-04-30 10:29:20,296 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:20,300 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 153 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. [2025-04-30 10:29:20,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 76 transitions, 159 flow [2025-04-30 10:29:20,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 76 transitions, 159 flow [2025-04-30 10:29:20,308 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:29:20,316 INFO L340 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;@3f5c987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:29:20,316 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-30 10:29:20,326 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:29:20,326 INFO L116 PetriNetUnfolderBase]: 1/48 cut-off events. [2025-04-30 10:29:20,327 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:29:20,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:20,327 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] [2025-04-30 10:29:20,327 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:20,331 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash -351114427, now seen corresponding path program 1 times [2025-04-30 10:29:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:29:20,339 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766190503] [2025-04-30 10:29:20,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:20,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:20,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:20,341 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) [2025-04-30 10:29:20,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-30 10:29:20,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-30 10:29:20,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-30 10:29:20,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:20,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:20,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:29:20,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:29:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:20,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:29:20,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:29:20,517 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766190503] [2025-04-30 10:29:20,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766190503] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:20,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:20,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:29:20,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674919467] [2025-04-30 10:29:20,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:20,524 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:29:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:29:20,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:29:20,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:29:20,720 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 76 [2025-04-30 10:29:20,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 159 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) [2025-04-30 10:29:20,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:20,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 76 [2025-04-30 10:29:20,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:20,764 INFO L116 PetriNetUnfolderBase]: 0/84 cut-off events. [2025-04-30 10:29:20,765 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:29:20,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 10/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2025-04-30 10:29:20,766 INFO L140 encePairwiseOnDemand]: 65/76 looper letters, 9 selfloop transitions, 2 changer transitions 6/68 dead transitions. [2025-04-30 10:29:20,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 172 flow [2025-04-30 10:29:20,768 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:29:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:29:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2025-04-30 10:29:20,776 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8377192982456141 [2025-04-30 10:29:20,777 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 159 flow. Second operand 6 states and 382 transitions. [2025-04-30 10:29:20,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 172 flow [2025-04-30 10:29:20,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:29:20,786 INFO L231 Difference]: Finished difference. Result has 75 places, 62 transitions, 146 flow [2025-04-30 10:29:20,788 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=75, PETRI_TRANSITIONS=62} [2025-04-30 10:29:20,791 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, -1 predicate places. [2025-04-30 10:29:20,791 INFO L485 AbstractCegarLoop]: Abstraction has has 75 places, 62 transitions, 146 flow [2025-04-30 10:29:20,791 INFO L486 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) [2025-04-30 10:29:20,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:20,792 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] [2025-04-30 10:29:20,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-30 10:29:20,993 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:20,993 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:20,994 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1227820357, now seen corresponding path program 1 times [2025-04-30 10:29:20,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:29:20,996 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120535050] [2025-04-30 10:29:20,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:20,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:20,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:20,999 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) [2025-04-30 10:29:21,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-30 10:29:21,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-04-30 10:29:21,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-04-30 10:29:21,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:21,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:29:21,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-30 10:29:21,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:29:21,235 INFO L354 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 [2025-04-30 10:29:21,276 INFO L354 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 [2025-04-30 10:29:21,329 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-30 10:29:21,329 INFO L354 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 [2025-04-30 10:29:21,396 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-30 10:29:21,396 INFO L354 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 [2025-04-30 10:29:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:29:21,442 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:29:21,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:29:21,443 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120535050] [2025-04-30 10:29:21,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120535050] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:29:21,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:29:21,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-04-30 10:29:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935950268] [2025-04-30 10:29:21,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:29:21,444 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-30 10:29:21,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:29:21,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-30 10:29:21,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-04-30 10:29:21,733 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 76 [2025-04-30 10:29:21,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 62 transitions, 146 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) [2025-04-30 10:29:21,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:29:21,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 76 [2025-04-30 10:29:21,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:29:21,816 INFO L116 PetriNetUnfolderBase]: 0/72 cut-off events. [2025-04-30 10:29:21,816 INFO L117 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-04-30 10:29:21,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 72 events. 0/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2025-04-30 10:29:21,816 INFO L140 encePairwiseOnDemand]: 60/76 looper letters, 17 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2025-04-30 10:29:21,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 68 transitions, 222 flow [2025-04-30 10:29:21,818 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-30 10:29:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-30 10:29:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 573 transitions. [2025-04-30 10:29:21,822 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6282894736842105 [2025-04-30 10:29:21,822 INFO L175 Difference]: Start difference. First operand has 75 places, 62 transitions, 146 flow. Second operand 12 states and 573 transitions. [2025-04-30 10:29:21,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 68 transitions, 222 flow [2025-04-30 10:29:21,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 68 transitions, 208 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-04-30 10:29:21,824 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 192 flow [2025-04-30 10:29:21,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=192, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2025-04-30 10:29:21,827 INFO L279 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2025-04-30 10:29:21,827 INFO L485 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 192 flow [2025-04-30 10:29:21,827 INFO L486 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) [2025-04-30 10:29:21,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:29:21,827 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] [2025-04-30 10:29:21,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-30 10:29:22,028 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:22,029 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-30 10:29:22,029 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:29:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1259038524, now seen corresponding path program 1 times [2025-04-30 10:29:22,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:29:22,030 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134587578] [2025-04-30 10:29:22,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:29:22,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:22,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:29:22,032 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) [2025-04-30 10:29:22,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-30 10:29:22,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:29:22,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:29:22,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:22,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:29:22,093 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:29:22,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-04-30 10:29:22,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-04-30 10:29:22,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:29:22,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:29:22,128 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-30 10:29:22,128 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:29:22,129 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-04-30 10:29:22,130 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2025-04-30 10:29:22,130 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2025-04-30 10:29:22,130 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-30 10:29:22,130 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-04-30 10:29:22,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-30 10:29:22,331 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:29:22,331 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:29:22,358 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:29:22,358 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:29:22,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:29:22 BasicIcfg [2025-04-30 10:29:22,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:29:22,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:29:22,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:29:22,362 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:29:22,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:29:20" (3/4) ... [2025-04-30 10:29:22,364 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:29:22,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:29:22,365 INFO L158 Benchmark]: Toolchain (without parser) took 3150.27ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 57.7MB in the beginning and 59.6MB in the end (delta: -1.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2025-04-30 10:29:22,366 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:22,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.14ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 26.4MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:29:22,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.51ms. Allocated memory is still 83.9MB. Free memory was 26.1MB in the beginning and 23.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:22,366 INFO L158 Benchmark]: Boogie Preprocessor took 37.92ms. Allocated memory is still 83.9MB. Free memory was 23.6MB in the beginning and 22.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:22,366 INFO L158 Benchmark]: RCFGBuilder took 382.43ms. Allocated memory is still 83.9MB. Free memory was 22.0MB in the beginning and 44.6MB in the end (delta: -22.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-04-30 10:29:22,367 INFO L158 Benchmark]: TraceAbstraction took 2200.61ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.5MB in the beginning and 59.6MB in the end (delta: -16.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2025-04-30 10:29:22,367 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:29:22,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.14ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 26.4MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.51ms. Allocated memory is still 83.9MB. Free memory was 26.1MB in the beginning and 23.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.92ms. Allocated memory is still 83.9MB. Free memory was 23.6MB in the beginning and 22.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.43ms. Allocated memory is still 83.9MB. Free memory was 22.0MB in the beginning and 44.6MB in the end (delta: -22.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2200.61ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.5MB in the beginning and 59.6MB in the end (delta: -16.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 100.7MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1021]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function __sync_fetch_and_add at line 1021. Possible FailurePath: [L1019] 0 int data; VAL [data={1:0}] [L1025] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data={1:0}, threads_total=1073741824] [L1026] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\at(cond, Pre)=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: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 89 edges, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 299 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 349 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 79 mSDtfsCounter, 485 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=192occurred in iteration=2, 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 [2025-04-30 10:29:22,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample