/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 17:26:11,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 17:26:11,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 17:26:11,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 17:26:11,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 17:26:11,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 17:26:11,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 17:26:11,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 17:26:11,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 17:26:11,863 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 17:26:11,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 17:26:11,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 17:26:11,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 17:26:11,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 17:26:11,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 17:26:11,865 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 17:26:11,865 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 17:26:11,865 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:11,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:26:11,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:11,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 17:26:11,867 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> FINITE_AUTOMATA [2025-04-13 17:26:12,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 17:26:12,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 17:26:12,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 17:26:12,109 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 17:26:12,110 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 17:26:12,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2025-04-13 17:26:13,373 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e1f289f/844c8d92beb647d8999be156826469f2/FLAG2c109249f [2025-04-13 17:26:13,594 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 17:26:13,594 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2025-04-13 17:26:13,603 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e1f289f/844c8d92beb647d8999be156826469f2/FLAG2c109249f [2025-04-13 17:26:14,423 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e1f289f/844c8d92beb647d8999be156826469f2 [2025-04-13 17:26:14,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 17:26:14,426 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 17:26:14,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 17:26:14,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 17:26:14,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 17:26:14,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412bdac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14, skipping insertion in model container [2025-04-13 17:26:14,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 17:26:14,614 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2025-04-13 17:26:14,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:26:14,759 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 17:26:14,775 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2025-04-13 17:26:14,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:26:14,824 INFO L204 MainTranslator]: Completed translation [2025-04-13 17:26:14,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14 WrapperNode [2025-04-13 17:26:14,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 17:26:14,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 17:26:14,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 17:26:14,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 17:26:14,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,850 INFO L138 Inliner]: procedures = 163, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2025-04-13 17:26:14,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 17:26:14,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 17:26:14,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 17:26:14,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 17:26:14,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,870 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-04-13 17:26:14,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 17:26:14,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 17:26:14,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 17:26:14,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 17:26:14,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (1/1) ... [2025-04-13 17:26:14,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:14,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:26:14,904 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) [2025-04-13 17:26:14,906 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 [2025-04-13 17:26:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 17:26:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 17:26:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-13 17:26:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-13 17:26:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 17:26:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 17:26:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 17:26:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 17:26:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 17:26:14,922 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 17:26:14,996 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 17:26:14,997 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 17:26:15,098 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 17:26:15,099 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 17:26:15,099 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 17:26:15,203 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 17:26:15,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:26:15 BoogieIcfgContainer [2025-04-13 17:26:15,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 17:26:15,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 17:26:15,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 17:26:15,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 17:26:15,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 05:26:14" (1/3) ... [2025-04-13 17:26:15,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc88e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:26:15, skipping insertion in model container [2025-04-13 17:26:15,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:14" (2/3) ... [2025-04-13 17:26:15,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc88e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:26:15, skipping insertion in model container [2025-04-13 17:26:15,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:26:15" (3/3) ... [2025-04-13 17:26:15,210 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2025-04-13 17:26:15,220 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 17:26:15,221 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_18-first-reads_unknown_2_neg.i that has 2 procedures, 17 locations, 15 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 17:26:15,221 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 17:26:15,251 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-13 17:26:15,273 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 16 transitions, 39 flow [2025-04-13 17:26:15,280 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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) [2025-04-13 17:26:15,296 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 17:26:15,304 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=FINITE_AUTOMATA, 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;@7fc60ed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 17:26:15,304 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 17:26:15,306 INFO L278 IsEmpty]: Start isEmpty. Operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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) [2025-04-13 17:26:15,309 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-04-13 17:26:15,310 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:15,311 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-04-13 17:26:15,312 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-13 17:26:15,316 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:15,316 INFO L85 PathProgramCache]: Analyzing trace with hash 164441383, now seen corresponding path program 1 times [2025-04-13 17:26:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:15,321 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743473692] [2025-04-13 17:26:15,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:15,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-13 17:26:15,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-13 17:26:15,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:15,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:26:15,401 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 17:26:15,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-13 17:26:15,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-13 17:26:15,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:15,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:26:15,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 17:26:15,438 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 17:26:15,441 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 17:26:15,442 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-13 17:26:15,443 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-04-13 17:26:15,443 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 17:26:15,447 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-13 17:26:15,475 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 17:26:15,475 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 17:26:15,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 05:26:15 BasicIcfg [2025-04-13 17:26:15,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 17:26:15,479 INFO L158 Benchmark]: Toolchain (without parser) took 1052.73ms. Allocated memory is still 155.2MB. Free memory was 106.9MB in the beginning and 39.6MB in the end (delta: 67.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2025-04-13 17:26:15,479 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:26:15,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.85ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 84.3MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-13 17:26:15,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.22ms. Allocated memory is still 155.2MB. Free memory was 84.3MB in the beginning and 82.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 17:26:15,480 INFO L158 Benchmark]: Boogie Preprocessor took 27.08ms. Allocated memory is still 155.2MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:26:15,480 INFO L158 Benchmark]: RCFGBuilder took 324.62ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 57.7MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 17:26:15,480 INFO L158 Benchmark]: TraceAbstraction took 273.39ms. Allocated memory is still 155.2MB. Free memory was 57.0MB in the beginning and 39.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-13 17:26:15,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.85ms. Allocated memory is still 155.2MB. Free memory was 106.3MB in the beginning and 84.3MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.22ms. Allocated memory is still 155.2MB. Free memory was 84.3MB in the beginning and 82.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.08ms. Allocated memory is still 155.2MB. Free memory was 82.2MB in the beginning and 80.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 324.62ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 57.7MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 273.39ms. Allocated memory is still 155.2MB. Free memory was 57.0MB in the beginning and 39.6MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id=-1, mutex1={3:0}] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\at(cond, Pre)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 25 locations, 24 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2025-04-13 17:26:15,500 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...